Method for predicting moisture absorption and desorption of passive humidity control materials in collection storage environment

Abstract

The application relates to the technical field of cultural relic protection, in particular to a passive humidity adjusting material moisture absorption and release prediction method in a collection preservation environment, wherein the method comprises the following steps: obtaining first environment data outside an actual preservation environment of a collection; testing model parameters in a passive humidity adjusting material moisture absorption and release model; inputting the first environment data into the passive humidity adjusting material moisture absorption and release model with the determined model parameters, so as to predict the relative humidity in the actual preservation environment, the air side and the material adsorption side moisture content in the passive humidity adjusting material bed. Therefore, the problems that the amount of the humidity adjusting material cannot be accurately grasped in the related art, the humidity adjusting material is prone to being extensive, the use effect is poor, the humidity adjusting material cannot be applied to different use scenes, and the humidity adjusting material is difficult to be applied to actual use and the like are solved.

Description

Technical Field

[0001] This application relates to the field of cultural relic protection technology, and in particular to a method for predicting the moisture absorption and release of passive humidity-regulating materials in the preservation environment of collections. Background Technology

[0002] Cultural relics are precious treasures left by our ancestors and carriers of cultural heritage. Providing a suitable preservation environment is the most basic and effective means of protection. Humidity in the preservation environment is a crucial indicator; excessively high or low relative humidity may cause deformation, chemical reactions, and biological corrosion of cultural relics.

[0003] In related technologies, in order to maintain the relative humidity level in the storage environment of collections (such as display cases, storage cabinets, etc.), humidity-regulating materials (such as silica gel, activated carbon, etc.) can be used for regulation and buffering; alternatively, methods such as humidity half-life models, lumped parameter models, and porous material diffusion models can be used to predict the relative humidity in the storage environment.

[0004] However, in the relevant technologies, when faced with specific environmental scenarios and humidity control requirements of collections, it is difficult to accurately grasp the type, amount, and replacement cycle of humidity-regulating materials. This can easily lead to the use of rudimentary humidity-regulating materials and poor performance, making them unsuitable for different application scenarios and difficult to apply in practice. Improvements are urgently needed. Summary of the Invention

[0005] This application provides a method for predicting the moisture absorption and release of passive humidity-regulating materials in the preservation environment of collections. This method addresses the problems in related technologies, such as the inability to accurately determine the amount of humidity-regulating material used, the tendency to use excessive amounts of humidity-regulating material, poor performance, and the inability to apply the material to different usage scenarios or in practice.

[0006] The first aspect of this application provides a method for predicting the moisture absorption and release of passive humidity-regulating materials in the preservation environment of a collection, comprising the following steps: acquiring first environmental data outside the actual preservation environment of the collection; testing the model parameters in the moisture absorption and release model of the passive humidity-regulating material; and inputting the first environmental data into the moisture absorption and release model of the passive humidity-regulating material with determined model parameters to predict the relative humidity, air-side moisture content and material adsorption-side moisture content in the actual preservation environment.

[0007] Optionally, in one embodiment of this application, before testing the model parameters in the passive humidity-regulating material moisture absorption and release model, the method further includes: obtaining diffusion control information within the passive humidity-regulating material bed based on the material diffusion process described by Fick's law; constructing one-dimensional diffusion control equations for the air side and material adsorption side within the humidity-regulating material bed in the passive humidity-regulating material moisture absorption and release model based on the diffusion control information; obtaining ventilation information of the actual storage environment; determining the moisture absorption or release information of the passive humidity-regulating material bed; constructing a water vapor phase concentration control equation within the storage environment in the passive humidity-regulating material moisture absorption and release model based on the first environmental data, the ventilation information, the moisture absorption information or the moisture release information, and the law of conservation of mass; and constructing the passive humidity-regulating material moisture absorption and release model based on the one-dimensional diffusion control equations for the air side and material adsorption side within the humidity-regulating material bed and the water vapor phase concentration control equation within the storage environment.

[0008] Optionally, in one embodiment of this application, the expression for the one-dimensional diffusion control equation on the air side and the material adsorption side within the humidity-regulating material bed may be, but is not limited to, the following:

[0009]

[0010] Among them, w a (x,t) and W s (X,T) represent the moisture content on the air side and the material adsorption side at different locations and times within the moisture-conditioning material bed, respectively, in kg / kg. W is present at adsorption equilibrium. s (t)=F[W a The adsorption isotherm relationship is shown in [(t),T,P], D a and D s These represent the diffusion coefficients of water molecules within the humidity-regulating material bed on the air side and the adsorption side of the humidity-regulating material, respectively, with units of m⁻² / s and ρ. a and ρ s ε represents the density of air and the humidification material particles, respectively, in kg / m-3; ε represents the porosity within the humidification material bed, in m-3 / m-3; x represents different positions within the humidification material bed, in m; and t represents different times, in s.

[0011] Optionally, in one embodiment of this application, the expression for the water vapor concentration control equation in the storage environment may be, but is not limited to, the following:

[0012]

[0013] Among them, w a,case (t) and w a,out (t) represents the air moisture content at different times inside and outside the storage environment, in kg / kg, kG V represents the gas-side mass transfer coefficient of the humidity-conditioning material bed surface, in kg / (m-2s), V represents the volume of the storage environment, in m-3, Q represents the air exchange flow rate, in m-3 / s, and A represents the surface area of ​​the humidity-conditioning material bed in contact with air, in m-2.

[0014] Optionally, in one embodiment of this application, the model parameters in the passive humidity control material moisture absorption and release model include: acquiring second environmental data of the collection in the test environment; using the temperature and humidity data and material moisture absorption and release data in the second environmental data to determine the adsorption isotherm in the model parameters; and determining the material adsorption-side diffusion coefficient in the model parameters based on the temperature and humidity data, material moisture absorption and release data, and the passive humidity control material moisture absorption and release model.

[0015] A second aspect of this application provides a device for predicting the moisture absorption and release of passive humidity-regulating materials in a collection preservation environment, comprising: a first acquisition module for acquiring first environmental data outside the actual preservation environment of the collection; a testing module for testing model parameters in a passive humidity-regulating material moisture absorption and release model; and a prediction module for inputting the first environmental data into a passive humidity-regulating material moisture absorption and release model with determined model parameters to predict the relative humidity, air-side moisture content, and material adsorption-side moisture content within the actual preservation environment.

[0016] Optionally, in one embodiment of this application, it further includes: a second acquisition module, used to acquire diffusion control information within the passive humidity-regulating material bed based on the material diffusion process described by Fick's law before testing the model parameters in the passive humidity-regulating material moisture absorption and release model; a first construction module, used to construct a one-dimensional diffusion control equation for the air side and material adsorption side within the humidity-regulating material bed in the passive humidity-regulating material moisture absorption and release model based on the diffusion control information; a third acquisition module, used to acquire ventilation information of the actual storage environment; a determination module, used to determine the moisture absorption information or moisture release information of the passive humidity-regulating material bed; a second construction module, used to construct a water vapor gas phase concentration control equation within the storage environment in the passive humidity-regulating material moisture absorption and release model based on the first environmental data, the ventilation information, the moisture absorption information or the moisture release information, and the law of conservation of mass; and a third construction module, used to construct the passive humidity-regulating material moisture absorption and release model based on the one-dimensional diffusion control equation for the air side and material adsorption side within the humidity-regulating material bed and the water vapor gas phase concentration control equation within the storage environment.

[0017] Optionally, in one embodiment of this application, the expression for the one-dimensional diffusion control equation on the air side and the material adsorption side within the humidity-regulating material bed may be, but is not limited to, the following:

[0018]

[0019] Among them, w a (x,t) and w s (x,t) represent the moisture content on the air side and the material adsorption side at different locations and times within the moisture-conditioning material bed, respectively, in kg / kg. At adsorption equilibrium, w... s (t)=f[w a The adsorption isotherm relationship is shown in [(t),T,P], d a and d s These represent the diffusion coefficients of water molecules within the humidity-regulating material bed on the air side and the adsorption side of the humidity-regulating material, respectively, with units of m⁻² / s and ρ. a and ρ s ε represents the density of air and the humidification material particles, respectively, in kg / m-3; ε represents the porosity within the humidification material bed, in m-3 / m-3; x represents different positions within the humidification material bed, in m; and t represents different times, in s.

[0020] Optionally, in one embodiment of this application, the expression for the water vapor concentration control equation in the storage environment may be, but is not limited to, the following:

[0021]

[0022] Among them, w a,case (t) and w a,out (t) represents the air moisture content at different times inside and outside the storage environment, in kg / kg, k G V represents the gas-side mass transfer coefficient of the humidity-conditioning material bed surface, in kg / (m-2s), V represents the volume of the storage environment, in m-3, Q represents the air exchange flow rate, in m-3 / s, and A represents the surface area of ​​the humidity-conditioning material bed in contact with air, in m-2.

[0023] Optionally, in one embodiment of this application, the testing module includes: an acquisition unit for acquiring second environmental data of the collection in the testing environment; a first determination unit for determining the adsorption isotherm in the model parameters using the temperature and humidity data and material moisture absorption and desorption data in the second environmental data; and a second determination unit for determining the material adsorption-side diffusion coefficient in the model parameters based on the temperature and humidity data, the material moisture absorption and desorption data, and the passive humidity-regulating material moisture absorption and desorption model.

[0024] A third aspect of this application provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method for predicting the moisture absorption and release of passive humidity-regulating materials in a collection preservation environment as described in the above embodiments.

[0025] A fourth aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for predicting the moisture absorption and release of passive humidity-regulating materials in a collection preservation environment.

[0026] A fifth aspect of this application provides a computer program product, including a computer program that, when executed, implements the above-described method for predicting the moisture absorption and release of passive humidity-regulating materials in a collection preservation environment.

[0027] This application's embodiments can obtain first environmental data outside the actual preservation environment of the artifacts, test the model parameters in the passive humidity-regulating material's moisture absorption and release model, and then input the first environmental data into the passive humidity-regulating material's moisture absorption and release model with pre-determined model parameters. This enables the prediction of relative humidity in the actual preservation environment, and the moisture content on the air side and material adsorption side within the passive humidity-regulating material bed. It can accurately determine the moisture absorption and release of the passive humidity-regulating material in the preservation environment, enabling prediction of the amount, arrangement, and replacement of the humidity-regulating material, and quantifying the behavior of the passive humidity-regulating material in the artifact preservation environment, providing a scientific basis for preventing damage to artifacts due to humidity fluctuations. Therefore, it solves the problems in related technologies, such as the inability to accurately control the amount of humidity-regulating material used, leading to inadequate application and poor results, making it unsuitable for different usage scenarios and difficult to apply in practice.

[0028] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0029] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0030] Figure 1 This is a flowchart illustrating a method for predicting the moisture absorption and release of passive humidity-regulating materials in a collection preservation environment, according to an embodiment of this application.

[0031] Figure 2 This is a schematic diagram of a prediction model for the moisture absorption and release of passive humidity-regulating materials in a collection preservation environment according to an embodiment of this application;

[0032] Figure 3 This is a schematic diagram of an experimental testing system for key parameters of humidity-regulating materials according to an embodiment of this application;

[0033] Figure 4 This is a schematic diagram of the dynamic adsorption capacity test results and dynamic adsorption curve fitting results provided according to an embodiment of this application;

[0034] Figure 5This is a schematic diagram of the equilibrium adsorption capacity test results and adsorption isotherm fitting results under different relative humidities according to an embodiment of this application;

[0035] Figure 6 This is a schematic diagram showing the relative humidity monitoring results and model prediction simulation results in the storage environment according to an embodiment of this application;

[0036] Figure 7 This is a block diagram of a passive humidity-regulating material moisture absorption and release prediction device for a collection preservation environment according to an embodiment of this application;

[0037] Figure 8 This is a schematic diagram of the structure of an electronic device provided according to an embodiment of this application. Detailed Implementation

[0038] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0039] The following describes a method for predicting the moisture absorption and release of passive humidity-regulating materials in the preservation environment of artifacts, based on embodiments of this application, with reference to the accompanying drawings. Addressing the issues mentioned in the background art, such as the inability to accurately determine the dosage of humidity-regulating materials, leading to inadequate application and poor results, and thus limiting its applicability to various scenarios, this application provides a method for predicting the moisture absorption and release of passive humidity-regulating materials in the preservation environment of artifacts. This method acquires first environmental data outside the actual preservation environment of the artifact, tests the model parameters in the moisture absorption and release model of the passive humidity-regulating material, and then inputs the first environmental data into the predetermined model parameters of the passive humidity-regulating material moisture absorption and release model. This allows for the prediction of relative humidity, air-side moisture content, and material adsorption-side moisture content within the actual preservation environment. It enables accurate assessment of the moisture absorption of passive humidity-regulating materials in the preservation environment, prediction of the dosage, arrangement, and replacement of these materials, and quantification of the behavior of passive humidity-regulating materials in the artifact preservation environment, providing a scientific basis for preventing damage to artifacts due to humidity fluctuations. This solves the problems in related technologies, such as the inability to accurately control the amount of humidity-regulating material used, which easily leads to the use of excessive amounts of humidity-regulating material, poor performance, and inability to be applied to different usage scenarios, making it difficult to apply in practice.

[0040] Specifically, Figure 1 This is a flowchart illustrating a method for predicting the moisture absorption and release of passive humidity-regulating materials in a collection preservation environment, according to an embodiment of this application.

[0041] like Figure 1As shown, the method for predicting the moisture absorption and release of passive humidity-regulating materials in the preservation environment of this collection includes the following steps:

[0042] In step S101, first environmental data outside the actual storage environment of the collection is obtained.

[0043] It is understood that, in the embodiments of this application, "external storage environment" can be understood as the exhibition hall or warehouse where the collection is located.

[0044] As one possible approach, embodiments of this application can obtain first environmental data of the exhibition hall or warehouse where the collection is located. This first environmental data may include, but is not limited to, humidity data, temperature data, etc., and this application does not impose specific limitations.

[0045] Optionally, in one embodiment of this application, before testing the model parameters in the passive humidity-regulating material moisture absorption and desorption model, the method further includes: obtaining diffusion control information within the passive humidity-regulating material bed based on the material diffusion process described by Fick's law; constructing one-dimensional diffusion control equations for the air side and material adsorption side within the humidity-regulating material bed in the passive humidity-regulating material moisture absorption and desorption model based on the diffusion control information; obtaining ventilation information of the actual storage environment; determining the moisture absorption or desorption information of the passive humidity-regulating material bed; constructing a water vapor phase concentration control equation within the storage environment in the passive humidity-regulating material moisture absorption and desorption model based on the first environmental data, ventilation information, moisture absorption or desorption information, and the law of conservation of mass; and constructing the passive humidity-regulating material moisture absorption and desorption model based on the one-dimensional diffusion control equations for the air side and material adsorption side within the humidity-regulating material bed and the water vapor phase concentration control equation within the storage environment. The expressions for the one-dimensional diffusion control equations for the air side and material adsorption side within the humidity-regulating material bed may be, but are not limited to, as follows:

[0046]

[0047] Among them, w a (x,t) and w s (X,t) represent the moisture content on the air side and the material adsorption side at different locations and times within the moisture-conditioning material bed, respectively, in kg / kg. At adsorption equilibrium, w... s (t)=f[w a The adsorption isotherm relationship is shown in [(t),T,P], D a and D s These represent the diffusion coefficients of water molecules within the humidity-regulating material bed on the air side and the adsorption side of the humidity-regulating material, respectively, with units of m⁻² / s and ρ. a and ρ s ε represents the density of air and the humidification material particles, respectively, in kg / m-3; ε represents the porosity within the humidification material bed, in m-3 / m-3; x represents different positions within the humidification material bed, in m; and t represents different times, in s.

[0048] The expression for the governing equation of water vapor concentration in the storage environment can be, but is not limited to, as follows:

[0049]

[0050] Among them, w a,case (t) and w a,out (t) represents the air moisture content at different times inside and outside the storage environment, in kg / kg, k G V represents the gas-side mass transfer coefficient of the humidity-conditioning material bed surface, in kg / (m-2s), V represents the volume of the storage environment, in m-3, Q represents the air exchange flow rate, in m-3 / s, and A represents the surface area of ​​the humidity-conditioning material bed in contact with air, in m-2.

[0051] It is understood that the embodiments of this application start from the moisture absorption and release mechanism of moisture-regulating materials, construct a moisture absorption and release model of passive moisture-regulating materials based on Fick's law, and take museum display cases as the application scenario and silicone bed as a typical case of moisture-regulating materials. This solves the problems of not being able to describe the performance of moisture-regulating materials and their universality under different application conditions. It realizes the simulation and prediction of the humid environment of cultural relics in the display case and the amount of moisture absorbed and released by the moisture-regulating materials. At the same time, it better realizes the accurate grasp of factors such as the type, amount and replacement cycle of moisture-regulating materials when applying them.

[0052] In some embodiments, the passive humidity-regulating material moisture absorption and release model constructed in this application includes: constructing a one-dimensional diffusion control equation for the air side and the material adsorption side within the humidity-regulating material bed, and constructing a water vapor phase concentration control equation within the storage environment.

[0053] In this embodiment of the application, when constructing the one-dimensional diffusion control equations for the air side and the material adsorption side within the humidity-regulating material bed, diffusion control information within the humidity-regulating material bed can be obtained based on the material diffusion process described by Fick's law, and then constructed according to the diffusion control information. The expressions for the one-dimensional diffusion control equations for the air side and the material adsorption side within the humidity-regulating material bed can be, but are not limited to, as follows:

[0054]

[0055] Among them, w a (x,t) and w s (x,t) represent the moisture content on the air side and the material adsorption side at different locations and times within the moisture-conditioning material bed, respectively, in kg / kg. At adsorption equilibrium, w... s (t)=f[w a The adsorption isotherm relationship is shown in [(t),T,P], D a and D sThese represent the diffusion coefficients of water molecules within the humidity-regulating material bed on the air side and the adsorption side of the humidity-regulating material, respectively, with units of m⁻² / s and ρ. a and ρ s ε represents the density of air and the humidification material particles, respectively, in kg / m-3; ε represents the porosity within the humidification material bed, in m-3 / m-3; x represents different positions within the humidification material bed, in m; and t represents different times, in s.

[0056] In this application embodiment, when constructing the water vapor concentration control equation within the storage environment, it is possible to obtain moisture information from the external environment of the display case, air exchange information inside and outside the display case, and moisture absorption or release information from the moisture-regulating material bed, combined with the law of conservation of mass. The expression for the water vapor concentration control equation within the storage environment can be, but is not limited to, as follows:

[0057]

[0058] Among them, w a,case (t) and w a,out (t) represents the air moisture content at different times inside and outside the storage environment, in kg / kg, k G V represents the gas-side mass transfer coefficient of the humidity-conditioning material bed surface, in kg / (m-2s), V represents the volume of the storage environment, in m-3, Q represents the air exchange flow rate, in m-3 / s, and A represents the surface area of ​​the humidity-conditioning material bed in contact with air, in m-2.

[0059] Furthermore, in this embodiment, a passive humidity-regulating material moisture absorption and release model can be constructed using one-dimensional diffusion control equations on the air side and material adsorption side within the humidity-regulating material bed, and water vapor concentration control equations within the storage environment. In this embodiment, the passive humidity-regulating material moisture absorption and release model assumes that the air in the museum display case is fully mixed, the humidity distribution is uniform, the initial moisture concentration distribution within the silica gel bed is uniform, the model parameters are constant physical property parameters, water molecules undergo a one-dimensional mass transfer process within the silica gel bed, the bottom contacts an impermeable surface, and the moisture within the silica gel bed undergoes a pure diffusion process. The moisture content on the surface of the silica gel particles and the moisture content in the pores are constantly in equilibrium. By inputting initial conditions such as the amount of silica gel used, the initial internal moisture content, and the initial relative humidity within the display case, as well as environmental conditions such as the relative humidity change monitoring value outside the display case and the air exchange rate inside and outside the display case, and combining the physical property parameters of the selected silica gel itself (such as density, adsorption isotherm, etc.), the model can simulate and predict the hourly changes in relative humidity within the display case.

[0060] For example, the embodiments of this application are combined with Figure 2 As shown, the moisture absorption and release model of silicone material in the display case environment includes the following physical processes:

[0061] (1) The process of the silica gel bed absorbing and releasing moisture from the air inside the display case.

[0062] In this embodiment, taking the moisture absorption process as an example, after the silica gel bed surface adsorbs ambient water vapor, due to the humidity gradient in the x-direction within the bed, the adsorbed water vapor diffuses deeper into the bed. The expression for the one-dimensional diffusion control equation on the air side and material adsorption side within the silica gel bed describing this process can be, but is not limited to, as follows:

[0063]

[0064] Among them, w a (x,t) and w s (X,t) represent the moisture content on the air side and the material adsorption side at different locations and times within the silica gel bed, respectively, in kg / kg. At adsorption equilibrium, w... s (t)=f[w a The adsorption isotherm relationship is shown in [(T),t,p], d a and d s These represent the diffusion coefficients of water molecules on the air side and the adsorption side within the silica gel bed, respectively, with units of m⁻² / s and ρ. a and ρ s ε represents the density of air and silica gel particles, respectively, in kg / m-3; ε represents the porosity within the silica gel bed, in m-3 / m-3; x represents different positions within the silica gel bed, in m; and t represents different times, in s.

[0065] (2) The process of change in the concentration of water vapor in the air inside the display case.

[0066] In this embodiment, the change in water vapor concentration in the display case air is partly caused by the moisture absorption and desorption process of the silica gel bed, and partly by the gas exchange between the display case and the external environment due to air infiltration. The expression for the water vapor concentration control equation within the display case describing this process can be, but is not limited to, the following:

[0067]

[0068] Among them, w a,case (T) and W a,out (t) represents the air moisture content inside and outside the display case at different times, in kg / kg, k G V represents the gas-side mass transfer coefficient of the silica gel bed surface, in kg / (m-2s), V represents the display case volume, in m-3, Q represents the air exchange flow rate, in m-3 / s, and A represents the surface area of ​​the humidity-regulating material bed in contact with air, in m-2.

[0069] In step S102, the model parameters in the passive humidity control material moisture absorption and release model are tested.

[0070] It is understood that the embodiments of this application can use an experimental testing system to test some key parameters in the moisture absorption and desorption model of passive humidity-regulating materials, such as the material's adsorption-side diffusion coefficient D. s and adsorption isotherm w s (t)=f[w a [(t),T,P], thereby ensuring that the established passive humidity control material moisture absorption and release model can accurately simulate and predict the changes in relative humidity and the amount of moisture absorbed and released by the passive humidity control material in the storage environment, such as the change in the amount of moisture absorbed by the humidity control material or the change in the amount of moisture released by the humidity control material.

[0071] Furthermore, it should be noted that in the embodiments of this application, environmental parameters such as the arrangement and physical properties of humidity-regulating materials, the size of the display case, the number of air changes, and initial parameters such as the initial moisture content and the relative humidity of the environment inside the display case can also be obtained. These parameters can be set by those skilled in the art according to the actual situation, and this application does not impose any specific limitations.

[0072] Optionally, in one embodiment of this application, testing the model parameters in the passive humidity control material moisture absorption and release model includes: acquiring second environmental data of the collection in the test environment; using the temperature and humidity data and material moisture absorption and release data in the second environmental data to determine the adsorption isotherm in the model parameters; and determining the material adsorption-side diffusion coefficient in the model parameters based on the temperature and humidity data, material moisture absorption and release data, and the passive humidity control material moisture absorption and release model.

[0073] In some embodiments, the present application can be combined with Figure 3 As shown, the diffusion coefficient and adsorption isotherm of the material on the adsorption side are determined through an experimental testing system.

[0074] Specifically, the experimental testing system 30 includes a mass flow controller 301, a constant temperature and humidity chamber 302, a temperature and humidity recorder 303, a fan 304, a loading tray 305, a humidifier 306, a compressed air cylinder 307, an experimental chamber 308, and silicone material 309.

[0075] In this embodiment, the humidity generation system comprises a mass flow controller 301, a humidification tank 306, and a compressed air cylinder 307. Pure dry air is supplied by two compressed air cylinders 307. One air stream passes through the humidification tank 306 to generate saturated humid air. The mass flow controller 301 regulates the flow rates of the dry and humid air streams to 0.6 L / min and 0.4 L / min respectively, thereby obtaining stable humid air with a relative humidity of 40%.

[0076] The moisture absorption and desorption balance test chamber consists of a test chamber body 308, trays 305, a fan 304, and a temperature and humidity recorder 303. Humid air with a flow rate of 1 L / min and a relative humidity of 40% generated by the humidity generation system is input into the test chamber body 308. The fan 304 ensures uniform humidity within the test chamber body 308. Six trays 305 are arranged inside the test chamber body 308, and 1g of dried silica gel material 309 is placed on each tray. Every two hours after the start of the experiment, the silica gel material 309 is removed and weighed to determine the hourly moisture absorption change level. The temperature and humidity data within the test chamber body 308 are monitored by the temperature and humidity recorder 303. Simultaneously, the test chamber body 308 is placed in a constant temperature and humidity chamber 302, with the temperature set at 22℃. The results of the silica gel moisture absorption change over time are as follows: Figure 4 As shown in the figure, the horizontal axis represents the test time, and the vertical axis represents the moisture absorption of the silica gel. The moisture absorption is obtained by dividing the absolute mass of the absorbed moisture during the experiment by the initial mass of the dry silica gel. When the mass of the silica gel changes by less than 10% over time in the later stages of the experiment, the material is considered to have reached adsorption equilibrium; this is the equilibrium moisture absorption of the silica gel at that relative humidity.

[0077] Furthermore, in this embodiment, the equilibrium moisture absorption of silica gel material under different relative humidity conditions can be obtained by conducting moisture absorption experiments on silica gel material under different relative humidity environments. The adsorption isotherm of the silica gel material can then be obtained by fitting these equilibrium moisture absorption values ​​using a specific relationship (such as the Toth relationship). The results of the equilibrium moisture absorption and adsorption isotherm of silica gel under different relative humidity conditions are as follows: Figure 5 As shown in the figure, the horizontal axis represents different relative humidity environments, and the vertical axis represents the equilibrium moisture absorption of silica gel. The maximum silica gel adsorption capacity w of the material was obtained by fitting the data. s,max The value is 0.38, and the parameters b and t are 0.6 and 5.05, respectively. Combining the obtained adsorption isotherms and the established material moisture absorption and desorption model... Figure 4 By fitting the change in moisture absorption of silica gel over time, the diffusion coefficient of water molecules within the material can be obtained as 1×10⁻⁷ m⁻² / s. This system enables accurate measurement of the diffusion coefficient and adsorption isotherm on the adsorption side of the material, ensuring that the established model can accurately simulate and predict changes in relative humidity and moisture absorption / desorption of the humidification material in the storage environment.

[0078] In this embodiment, the diffusion coefficient of water molecules in silica gel is 1×10⁻⁷ m⁻² / s, and the silica gel adsorption isotherm can be expressed using the Toth relation, the expression of which can be, but is not limited to, the following:

[0079] w s / w s,max =bp v / [1+(bp v ) t ] 1 / t,

[0080] Among them, w s,max The maximum adsorption capacity of silica gel is given by b and t, which are parameters, respectively, and p. v Let p be the partial pressure of water vapor. v There is a one-to-one correspondence between relative humidity and relative humidity, which can be obtained by conversion based on relative humidity.

[0081] In step S103, the first environmental data is input into the passive humidity control material moisture absorption and release model with determined model parameters to predict the relative humidity in the actual storage environment and the moisture content on the air side and material adsorption side of the passive humidity control material bed.

[0082] It is understood that, in the embodiments of this application, the actual storage environment can be understood as inside a display case, inside a storage box, inside a storage cabinet, etc., and can be specifically set by those skilled in the art according to the actual situation. This application does not impose any specific restrictions.

[0083] In some implementations of this application, numerical calculation methods such as the finite difference method can be used to solve the moisture absorption and release model of the passive humidity regulating material to simulate the humidity changes inside the display case, thereby enabling the prediction of the relative humidity inside the display case and the moisture content on the air side and the material adsorption side of the passive humidity regulating material bed.

[0084] In this application embodiment, numerical calculation methods such as the finite difference method, combined with initial and boundary conditions, can be used to solve the moisture absorption and release model of passive humidity-regulating materials. The initial conditions describe the water vapor concentration in the air inside the display case and the water molecule concentration inside the silica gel at the initial moment of model calculation; the boundary conditions describe the behavior of the moisture absorption and release boundaries and bottom boundary of the silica gel bed, or its interaction with other systems. The equations describing the moisture absorption and release boundary conditions of the silica gel bed in this application embodiment can be, but are not limited to, the following:

[0085]

[0086] The equations describing the bottom boundary conditions of the silicone bed can be, but are not limited to, the following:

[0087]

[0088] Where x = L and x = 0 represent the moisture absorption / desorption boundary and bottom boundary of the silica gel bed, respectively, in meters (m) and w. a (x=L,t) represents the air-side moisture content at the moisture absorption / desorption boundary of the silica gel bed at different times, in kg / kg.

[0089] For example, in this embodiment of the application, the display case is a 0.2m-3 square glass display case, the ambient temperature is 22℃, the air exchange rate inside and outside the display case is 0.97 times / day, the density of the silicone lining inside the display case is 1.5g / cm-3, and the porosity of the bed layer is 0.4.

[0090] Furthermore, in this embodiment of the application, during the silica gel moisture absorption experiment, a temperature and humidity detector was placed outside the display case to record the hourly changes in relative humidity inside and outside the display case. To verify the accuracy and universality of the model, three different silica gel usage scenarios were conducted inside the display case: 250g, 500g, and 1500g, with each experiment lasting 120 hours. The relative humidity monitoring results inside the display case and the model prediction simulation results are as follows: Figure 6 As shown in the figure, the horizontal axis represents time, and the vertical axis represents the relative humidity inside the display case. The results show that the silica gel bed moisture absorption and release model in the museum display case of this application embodiment can simulate and predict the relative humidity changes inside the display case based on the hourly changes in the relative humidity of the external environment. This solves the problems currently existing in museums, such as the inability to accurately grasp the type, amount, and replacement cycle of silica gel, resulting in the extensive use of silica gel and poor effects.

[0091] The following section describes a specific embodiment of the method for predicting the moisture absorption and release of passive humidity-regulating materials in the preservation environment of collections proposed in this application.

[0092] Example 1:

[0093] The display case in this embodiment is a 0.2m-3 square glass display case, the ambient temperature is 22℃, the air exchange rate of the display case is 0.97 times / day, the density of the silica gel arranged inside the display case is 1.5g / cm-3, and the porosity of the bed layer is 0.4. Therefore, this embodiment can be combined with... Figure 3 As shown, the diffusion coefficient and adsorption isotherm of silica gel adsorption side were determined through an experimental testing system. The diffusion coefficient of water molecules in silica gel is 1×10⁻⁷ m⁻² / s. The silica gel adsorption isotherm can be expressed using the Toth relation, and then combined with... Figure 5 The equilibrium moisture absorption and adsorption isotherm results of silica gel under different relative humidities are shown. The maximum adsorption capacity w of silica gel in the material is obtained by fitting the data. s,max The value is 0.38, and the parameters b and t are 0.6 and 5.05, respectively.

[0094] Furthermore, in this embodiment of the application, during the silica gel moisture absorption experiment, temperature and humidity detectors were placed inside and outside the display case to record the hourly changes in relative humidity inside and outside the display case. To verify the accuracy and universality of the model, three different silica gel usage scenarios were set up inside the display case for experiments: 250g, 500g, and 1500g, respectively. Each experiment lasted for 120 hours. The relative humidity monitoring results inside the display case and the model prediction results are as follows: Figure 6As shown.

[0095] The method for predicting the moisture absorption and release of passive humidity-regulating materials in the preservation environment of cultural relics, as proposed in this application, can obtain first environmental data outside the actual preservation environment of the cultural relics, test the model parameters in the moisture absorption and release model of the passive humidity-regulating materials, and then input the first environmental data into the passive humidity-regulating material moisture absorption and release model with determined model parameters. This enables the prediction of relative humidity, air-side and material adsorption-side moisture content in the actual preservation environment, and allows for accurate judgment of the moisture absorption of passive humidity-regulating materials in the preservation environment. It also enables prediction of the amount, arrangement, and replacement of humidity-regulating materials, and quantifies the behavior of passive humidity-regulating materials in the preservation environment of cultural relics, providing a scientific basis for preventing damage to cultural relics due to humidity fluctuations. Therefore, this method solves the problems in related technologies, such as the inability to accurately determine the amount of humidity-regulating materials used, the tendency for coarse application of humidity-regulating materials, poor performance, and inability to be applied to different usage scenarios, making it difficult to apply in practice.

[0096] Next, referring to the accompanying drawings, a device for predicting the absorption and release of moisture from passive humidity-regulating materials in the preservation environment of collections, according to an embodiment of this application, is described.

[0097] Figure 7 This is a block diagram of a passive humidity-regulating material moisture absorption and release prediction device for a collection preservation environment provided according to an embodiment of this application.

[0098] like Figure 7 As shown, the passive humidity control material moisture absorption and release prediction device 10 in the preservation environment of the collection includes: a first acquisition module 100, a testing module 200 and a prediction module 300.

[0099] The first acquisition module 100 is used to acquire first environmental data outside the actual storage environment of the collection.

[0100] Test module 200 is used to test the model parameters in the moisture absorption and release model of passive humidity control materials.

[0101] The prediction module 300 is used to input the first environmental data into the passive humidity control material moisture absorption and release model with determined model parameters, so as to predict the relative humidity in the actual storage environment and the moisture content on the air side and the material adsorption side in the passive humidity control material bed.

[0102] Optionally, in one embodiment of this application, it further includes: a second acquisition module, a first construction module, a third acquisition module, a determination module, a second construction module, and a third construction module.

[0103] The second acquisition module is used to acquire diffusion control information within the passive humidity-regulating material bed based on the material diffusion process described by Fick's law before testing the model parameters in the passive humidity-regulating material moisture absorption and release model.

[0104] The first building module is used to construct one-dimensional diffusion control equations for the air side and material adsorption side within the moisture-regulating material bed in the passive moisture-regulating material moisture absorption and desorption model based on diffusion control information.

[0105] The third acquisition module is used to acquire ventilation information of the actual storage environment inside and outside.

[0106] The determination module is used to determine the moisture absorption or release information of the passive humidity conditioning material bed.

[0107] The second construction module is used to construct the water vapor concentration control equation in the storage environment of the passive humidity control material moisture absorption and release model based on the first environmental data, ventilation information, moisture absorption or moisture release information, and the law of conservation of mass.

[0108] The third construction module is used to construct a moisture absorption and release model for passive moisture-regulating materials based on the one-dimensional diffusion control equations on the air side and the material adsorption side within the moisture-regulating material bed and the water vapor concentration control equations in the storage environment.

[0109] Optionally, in one embodiment of this application, the expression for the one-dimensional diffusion control equation on the air side and the material adsorption side within the humidity-regulating material bed may be, but is not limited to, as follows:

[0110]

[0111] Among them, w a (x,t) and w s (x,t) represent the moisture content on the air side and the material adsorption side at different locations and times within the moisture-conditioning material bed, respectively, in kg / kg. At adsorption equilibrium, w... s (t)=f[w a The adsorption isotherm relationship is shown in [(t),T,P], D a and D s These represent the diffusion coefficients of water molecules within the humidity-regulating material bed on the air side and the adsorption side of the humidity-regulating material, respectively, with units of m⁻² / s and ρ. a and ρ s ε represents the density of air and the humidification material particles, respectively, in kg / m-3; ε represents the porosity within the humidification material bed, in m-3 / m-3; x represents different positions within the humidification material bed, in m; and t represents different times, in s.

[0112] Optionally, in one embodiment of this application, the expression for the water vapor phase concentration control equation in the storage environment may be, but is not limited to, the following:

[0113]

[0114] Among them, w a,case (t) and wa,out (t) represents the air moisture content at different times inside and outside the storage environment, in kg / kg, k G V represents the gas-side mass transfer coefficient of the humidity-regulating material bed surface, in kg / (m-2s), V represents the volume of the storage environment, in m-3, Q represents the air exchange flow rate, in m-3 / s, and A represents the surface area of ​​the silica gel bed in contact with air, in m-2.

[0115] Optionally, in one embodiment of this application, the test module 200 includes: an acquisition unit, a first determination unit, and a second determination unit.

[0116] The acquisition unit is used to acquire second environmental data of the collection in the test environment.

[0117] The first determining unit is used to determine the adsorption isotherm in the model parameters using the temperature and humidity data and the material moisture absorption and release data in the second environmental data.

[0118] The second determining unit is used to determine the material adsorption-side diffusion coefficient in the model parameters based on temperature and humidity data, material moisture absorption and desorption data, and the moisture absorption and desorption model of passive humidity-regulating materials.

[0119] It should be noted that the foregoing explanation of the embodiment of the method for predicting the absorption and release of moisture by passive humidity-regulating materials in the preservation environment of collections also applies to the device for predicting the absorption and release of moisture by passive humidity-regulating materials in the preservation environment of collections in this embodiment, and will not be repeated here.

[0120] The passive humidity-regulating material moisture absorption and release prediction device for artifact preservation environments proposed in this application can acquire first environmental data outside the actual preservation environment of the artifacts, test the model parameters in the passive humidity-regulating material moisture absorption and release model, and then input the first environmental data into the passive humidity-regulating material moisture absorption and release model with determined model parameters. This enables the prediction of relative humidity, air-side and material adsorption-side moisture content within the actual preservation environment, and allows for accurate judgment of the moisture absorption of passive humidity-regulating materials in the preservation environment. It also enables prediction of the amount, arrangement, and replacement of humidity-regulating materials, and quantifies the behavior of passive humidity-regulating materials in artifact preservation environments, providing a scientific basis for preventing damage to artifacts due to humidity fluctuations. Therefore, this solves the problems in related technologies, such as the inability to accurately determine the amount of humidity-regulating materials used, the tendency for coarse application of humidity-regulating materials, poor performance, and inability to be applied to different usage scenarios, making practical application difficult.

[0121] Figure 8 This is a schematic diagram of the structure of an electronic device provided according to an embodiment of this application. The electronic device may include:

[0122] The memory 801, the processor 802, and the computer program stored on the memory 801 and capable of running on the processor 802.

[0123] When the processor 802 executes the program, it implements the method for predicting the moisture absorption and release of passive humidity-regulating materials in the collection preservation environment provided in the above embodiments.

[0124] Furthermore, electronic devices also include:

[0125] Communication interface 803 is used for communication between memory 801 and processor 802.

[0126] The memory 801 is used to store computer programs that can run on the processor 802.

[0127] The memory 801 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage device.

[0128] If the memory 801, processor 802, and communication interface 803 are implemented independently, then the communication interface 803, memory 801, and processor 802 can be interconnected via a bus to complete communication between them. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 8 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0129] Optionally, in a specific implementation, if the memory 801, processor 802, and communication interface 803 are integrated on a single chip, then the memory 801, processor 802, and communication interface 803 can communicate with each other through an internal interface.

[0130] The processor 802 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.

[0131] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for predicting the moisture absorption and release of passive humidity-regulating materials in a collection preservation environment.

[0132] This application also provides a computer program product, including a computer program that, when executed, implements the above-described method for predicting the moisture absorption and release of passive humidity-regulating materials in a collection preservation environment.

[0133] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0134] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0135] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0136] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0137] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, it can be implemented using any one or more of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0138] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0139] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0140] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A method for predicting the moisture absorption and release of passive humidity-regulating materials in a collection preservation environment, characterized in that, Includes the following steps: Obtain primary environmental data beyond the actual storage environment of the collection; Test the model parameters in the moisture absorption and release model of passive humidity control materials; The first environmental data is input into the passive humidity control material moisture absorption and release model with determined model parameters to predict the relative humidity in the actual storage environment and the moisture content on the air side and material adsorption side in the passive humidity control material bed. Before testing the model parameters in the passive humidity control material moisture absorption and release model, the following steps are also included: Based on the material diffusion process described by Fick's law, diffusion control information within a passive humidity-regulating material bed is obtained. Based on the diffusion control information, a one-dimensional diffusion control equation is constructed for the air side and the material adsorption side within the moisture-conditioning material bed in the passive moisture-conditioning material moisture absorption and desorption model. Obtain ventilation information of the actual storage environment inside and outside; Determine the moisture absorption or release information of the passive humidity-regulating material bed; Based on the first environmental data, the ventilation information, the moisture absorption information or the moisture release information, and the law of conservation of mass, the control equation for the water vapor concentration in the storage environment in the moisture absorption and release model of the passive humidity regulating material is constructed. Based on the one-dimensional diffusion control equations of the air side and the material adsorption side in the humidity-regulating material bed and the water vapor phase concentration control equation in the storage environment, a moisture absorption and release model of the passive humidity-regulating material is constructed. The expressions for the one-dimensional diffusion control equations on the air side and the material adsorption side within the humidity-regulating material bed are as follows: ， in, and These represent the moisture content on the air side and the material adsorption side at different locations and times within the moisture-conditioning material bed, expressed in kg / kg. This moisture content is present at adsorption equilibrium. This adsorption isotherm relationship. and These represent the diffusion coefficients of water molecules within the humidity-regulating material bed on the air side and the adsorption side of the humidity-regulating material, respectively, in units of... , and These represent the particle density of air and the humidity-regulating material, respectively, in units of... , Indicates the porosity within the moisture-regulating material bed, in units of... , The units are meters (m) representing different locations within the moisture-regulating material bed. For different times, the unit is seconds (s); The expression for the water vapor concentration control equation in the storage environment is as follows: ， in, and These represent the air moisture content at different times inside and outside the storage environment, in kg / kg. This represents the gas-side mass transfer coefficient on the surface of the moisture-conditioning material bed, in units of... , Indicates the volume of the storage environment, in units of , This indicates the ventilation flow rate, in units of... , This indicates the surface area of ​​the humidity-regulating material bed in contact with air, measured in units of... .

2. The method according to claim 1, characterized in that, The model parameters in the test passive humidity-regulating material moisture absorption and release model include: Obtain secondary environmental data of the collection in the test environment; The adsorption isotherm in the model parameters is determined using the temperature and humidity data and material moisture absorption and release data from the second environmental data. Based on the temperature and humidity data, the material's moisture absorption and release data, and the passive humidity control material's moisture absorption and release model, the material adsorption-side diffusion coefficient in the model parameters is determined.

3. A device for predicting the moisture absorption and release of passive humidity-regulating materials in a collection preservation environment, characterized in that, The method for predicting the moisture absorption and release of passive humidity-regulating materials in the preservation environment of collections, as described in any one of claims 1-2, includes: The first acquisition module is used to acquire first environmental data outside the actual storage environment of the collection. The testing module is used to test the model parameters in the moisture absorption and release model of passive humidity control materials. The prediction module is used to input the first environmental data into the passive humidity control material moisture absorption and release model with determined model parameters, so as to predict the relative humidity in the actual storage environment and the moisture content on the air side and the material adsorption side in the passive humidity control material bed.

4. The apparatus according to claim 3, characterized in that, Also includes: The second acquisition module is used to acquire diffusion control information within the passive humidity-regulating material bed based on the material diffusion process described by Fick's law before testing the model parameters in the passive humidity-regulating material moisture absorption and desorption model. The first construction module is used to construct a one-dimensional diffusion control equation for the air side and the material adsorption side within the moisture-regulating material bed in the passive moisture-regulating material moisture absorption and desorption model based on the diffusion control information. The third acquisition module is used to acquire the ventilation information of the actual storage environment inside and outside; The determination module is used to determine the moisture absorption or release information of the passive humidity regulating material bed. The second construction module is used to construct the water vapor gas phase concentration control equation in the storage environment of the passive humidity-regulating material moisture absorption and release model based on the first environmental data information, the ventilation information, the moisture absorption information or the moisture release information, and the law of conservation of mass. The third construction module is used to construct the moisture absorption and release model of the passive moisture-regulating material based on the one-dimensional diffusion control equations of the air side and the material adsorption side in the moisture-regulating material bed and the water vapor phase concentration control equation in the storage environment.

5. An electronic device, characterized in that, include: The device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the method for predicting the moisture absorption and release of passive humidity-regulating materials in a collection preservation environment as described in any one of claims 1-2.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the method for predicting the moisture absorption and release of passive humidity-regulating materials in the preservation environment of collections as described in any one of claims 1-2.

7. A computer program product, characterized in that, Includes a computer program, which, when executed, is used to implement the method for predicting the moisture absorption and release of passive humidity-regulating materials in a collection preservation environment as described in any one of claims 1-2.

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