Method for evaluating application economy of thermochemical heat storage material and related device

Abstract

The invention discloses a thermochemical heat storage material application economy evaluation method and a related device. The method comprises the following steps: acquiring operation data of a thermochemical energy storage system; according to the operation data of the thermochemical energy storage system, the loss amount of a thermochemical energy storage material in the heat storage and release process, the loss amount of the thermochemical energy storage material in the transfer process and the annual life loss amount of the thermochemical energy storage material are determined; according to the loss amount of the thermochemical energy storage material in the heat storage and release process, the loss amount of the thermochemical energy storage material in the transfer process and the annual life loss amount of the thermochemical energy storage material, the annual supplementary material amount of the thermochemical energy storage material is calculated; the application economy of the thermochemical heat storage material is evaluated according to the supplementary material amount of the thermochemical heat storage material every year. The method and the related device can evaluate the economy of the thermochemical heat storage material.

Description

Technical Field

[0001] The present invention belongs to the field of performance evaluation and relates to an evaluation method for the application economy of a thermochemical heat storage material and a related device. Background Art

[0002] Thermochemical energy storage materials are the key to thermochemical energy storage technology. During the heat storage-release cycle of thermochemical materials, problems such as cycle life degradation and material crushing and pulverization will occur. Therefore, the performance degradation of thermochemical materials cannot be avoided. These factors need to be comprehensively considered during the cycle. It is very necessary to evaluate the economic feasibility of thermochemical materials. The economic feasibility of thermochemical heat storage materials has a huge impact on the investment cost, operating cost, return on investment, and investment recovery period of the thermochemical energy storage system. A method for comprehensively evaluating the economic feasibility of materials is very much needed. However, the existing technology does not provide a method for evaluating the economic feasibility of thermochemical energy storage materials. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a method for evaluating the economic efficiency of the application of thermochemical heat storage materials and related devices, which can evaluate the economic efficiency of thermochemical heat storage materials.

[0004] To achieve the above objectives, the present invention discloses a method for evaluating the economic efficiency of thermochemical heat storage materials, comprising:

[0005] Obtaining operational data of thermochemical energy storage systems;

[0006] Determining, based on the operating data of the thermochemical energy storage system, the loss of the thermochemical energy storage material during heat storage and release, the loss of the thermochemical energy storage material during transportation, and the annual life loss of the thermochemical energy storage material;

[0007] Calculate the annual replenishment amount of thermochemical energy storage materials based on the loss of thermochemical energy storage materials during heat storage and release, the loss of thermochemical energy storage materials during transportation, and the loss of thermochemical energy storage materials over their lifetime;

[0008] The application economics of the thermochemical heat storage material is evaluated based on the annual replenishment amount of the thermochemical energy storage material.

[0009] The further improvement of the method for evaluating the economic efficiency of the application of thermochemical heat storage materials described in the present invention is:

[0010] Furthermore, the loss of thermochemical energy storage materials during the heat storage and release process is η1*q1*t1+η2*q2*t2, where η1 is the failure ratio of thermochemical energy storage materials in a single energy storage process, η2 is the failure ratio of thermochemical energy storage materials in a single energy release process, q1 is the transport cycle of thermochemical energy storage materials in the energy storage process of the thermochemical energy storage system, q2 is the transport cycle of thermochemical energy storage materials in the energy release process of the thermochemical energy storage system, t1 is the annual operating energy storage time of the system, and t2 is the annual operating energy release time of the system.

[0011] Furthermore, the loss of thermochemical energy storage materials during the transportation process is ε*nx*η3*(q1*t1)=ε*t1 / (M / q1)*η3*(q1*t1), where ε is the number of transportation times of the thermochemical energy storage material, nx is the number of cycles of the actual thermochemical energy storage material per year, η3 is the wear coefficient of the thermochemical energy storage material in a single transportation cycle, q1 is the transportation cycle volume of the thermochemical energy storage material during the energy storage process of the thermochemical energy storage system, t1 is the annual operating energy storage time of the system, and M is the total amount of thermochemical energy storage material filled in the thermochemical energy storage system.

[0012] Furthermore, the annual life loss of the thermochemical energy storage material is nx / n0*M=(t1 / (M / q1) / n0*M, where nx is the actual number of cycles of the thermochemical energy storage material per year, n0 is the total number of cycles of the designed thermochemical energy storage material, M is the total amount of thermochemical energy storage material filled in the thermochemical energy storage system, t1 is the annual operating energy storage time of the system, and q1 is the transport cycle of the thermochemical energy storage material during the energy storage process of the thermochemical energy storage system.

[0013] Furthermore, the amount of material that needs to be replenished each year = the loss of material in the heat storage and release process + the loss of material in the transportation process + the loss over the life of the product.

[0014] Furthermore, the process of evaluating the application economics of the thermochemical heat storage material based on the annual replenishment amount of the thermochemical energy storage material is as follows:

[0015] The cost of replenishing the thermochemical heat storage material each year is calculated based on the annual replenishment amount of the thermochemical energy storage material, and the economic efficiency of the application of the thermochemical heat storage material is evaluated based on the cost of replenishing the thermochemical heat storage material each year.

[0016] Furthermore, the cost of replenishing the thermochemical heat storage material each year is the amount of material required to be replenished each year*the cost of the material.

[0017] The present invention discloses a system for evaluating the economic efficiency of thermochemical heat storage material applications, comprising:

[0018] An acquisition module, used to obtain operating data of the thermochemical energy storage system;

[0019] a first calculation module for determining, based on the operating data of the thermochemical energy storage system, the loss of the thermochemical energy storage material during heat storage and release, the loss of the thermochemical energy storage material during transportation, and the annual life loss of the thermochemical energy storage material;

[0020] The second calculation module is used to calculate the annual replenishment amount of the thermochemical energy storage material based on the loss of the thermochemical energy storage material during the heat storage and release process, the loss of the thermochemical energy storage material during the transportation process, and the annual life loss of the thermochemical energy storage material;

[0021] An evaluation module is used to evaluate the application economics of the thermochemical heat storage material according to the annual replenishment amount of the thermochemical energy storage material.

[0022] The present invention discloses a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the method for evaluating the economic efficiency of the application of thermochemical heat storage materials are implemented.

[0023] The present invention discloses a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for evaluating the economic efficiency of application of thermochemical heat storage materials are implemented.

[0024] The present invention has the following beneficial effects:

[0025] During specific operation, the method and related device for evaluating the economic application of thermochemical heat storage materials described in the present invention determine, based on the operating data of the thermochemical energy storage system, the loss of thermochemical energy storage materials during heat storage and release, the loss of thermochemical energy storage materials during transportation, and the annual life loss of the thermochemical energy storage materials. Based on this, the annual replenishment amount of the thermochemical energy storage materials is calculated. Finally, the economic application of the thermochemical heat storage materials is evaluated based on the annual replenishment amount of the thermochemical energy storage materials. During actual operation, the economic effect of the thermochemical heat storage materials on the investment cost, operating cost, return on investment, and investment payback period of the thermochemical energy storage system can be determined. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 Flow chart of the method of the present invention. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0029] In the description of the present invention, it is to be understood that the terms “include” and “comprise” indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or collections thereof.

[0030] It should also be understood that the terms used in the present specification are only for the purpose of describing particular embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0031] It should be further understood that the term "and / or" as used in the present specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects are in an "or" relationship.

[0032] It should be understood that although the terms "first," "second," and "third" may be used to describe preset ranges in embodiments of the present invention, these preset ranges should not be limited to these terms. These terms are merely used to distinguish one preset range from another. For example, without departing from the scope of embodiments of the present invention, the first preset range may also be referred to as the second preset range, and similarly, the second preset range may also be referred to as the first preset range.

[0033] The word "if," as used herein, may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] The accompanying drawings illustrate various schematic diagrams of structures according to embodiments disclosed herein. These figures are not drawn to scale; for clarity, some details are exaggerated and some details may be omitted. The shapes of the various regions and layers shown in the figures, as well as their relative sizes and positional relationships, are merely exemplary and may deviate in practice due to manufacturing tolerances or technical limitations. Those skilled in the art may design regions / layers with different shapes, sizes, and relative positions as needed.

[0036] Example 1

[0037] refer to Figure 1 The method for evaluating the economic efficiency of the thermochemical heat storage material application of the present invention comprises the following steps:

[0038] 1) Obtaining the operating data of the thermochemical energy storage system;

[0039] Among them, n0 is the total number of cycles of the designed material, where one heat storage and one heat release is one cycle, unit: times; nx is the number of cycles of the actual material per year, unit: times; q1 is the transfer cycle volume of the material in the energy storage process of the thermochemical energy storage system, unit: t / h; q2 is the transfer cycle volume of the material in the energy release process of the thermochemical energy storage system, unit: t / h; M is the total material filling volume of the thermochemical energy storage system, unit: t; ε is the number of transfers of the thermochemical heat storage material, where, when the energy storage device is transferred to the energy release device, and the energy release device transfers the energy storage device, then ε = 2; energy storage device-heat source vehicle-energy release device-heat source vehicle-energy storage device, then ε = 4; η1 is the failure rate of the material in a single energy storage process, unit: %; η2 is the failure rate of the material in a single energy release process, unit: %; η3 is the wear coefficient of the material in a single transfer cycle, unit: %; t1 is the annual energy storage time of the system, unit: h; t2 is the annual energy release time of the system, unit: h.

[0040] 2) According to the operating data of the thermochemical energy storage system, determine the loss of thermochemical energy storage materials in the heat storage and release process, the loss of thermochemical energy storage materials in the transportation process, and the annual life loss of thermochemical energy storage materials; wherein, the loss of materials in the heat storage and release process = η1*q1*t1+η2*q2*t2; the loss of materials in the transportation process = ε*nx*η3*(q1*t1) = ε*t1 / (M / q1)*η3*(q1*t1); the annual life loss = nx / n0*M = (t1 / (M / q1) / n0*M; the amount of materials required to be replenished each year = the loss of materials in the heat storage and release process + the loss of materials in the transportation process + the annual life loss.

[0041] 3) Calculate the annual replenishment amount of thermochemical energy storage materials based on the loss of thermochemical energy storage materials during heat storage and release, the loss of thermochemical energy storage materials during transportation, and the annual life loss of thermochemical energy storage materials;

[0042] 4) Evaluating the economic feasibility of the application of the thermochemical heat storage material based on the annual replenishment amount of the thermochemical energy storage material.

[0043] For example, the number of cycles of the designed material is n0=100, the transfer cycle volume of the material in the energy storage process of the thermochemical energy storage system is q1=10t / h, the total material filling volume of the thermochemical energy storage system is M=1000t, when the energy storage device is transferred to the energy release device and the energy release device is transferred to the energy storage device, ε=2, the failure rate of the material in the energy storage process accounts for η1=0.15%, the failure rate of the material in the energy release process accounts for η2=0.1%, the wear coefficient of the material in a single transfer cycle is η3=0.02%, the annual operating energy storage time of the system is t1=1750h, and the annual operating energy release time of the system is The time t2 is 2800h, and the transfer circulation volume of materials in the energy release process of the thermochemical energy storage system is calculated to be q2 = 6.25t. The actual number of material cycles per year is nx = 45.5. The loss of materials in the heat storage and release process is 54.25t, the loss of materials in the transfer process is 122.5t, and the annual life loss is 175t. The amount of materials that need to be replenished each year is 54.25t + 122.5t + 175t = 351.75t. The cost of materials is D = 2000 yuan / t. The cost of replenishing thermochemical heat storage materials each year is 703,500 yuan.

[0044] Example 2

[0045] The evaluation system for the economic application of thermochemical heat storage materials of the present invention comprises:

[0046] An acquisition module, used to obtain operating data of the thermochemical energy storage system;

[0047] a first calculation module for determining, based on the operating data of the thermochemical energy storage system, the loss of the thermochemical energy storage material during heat storage and release, the loss of the thermochemical energy storage material during transportation, and the annual life loss of the thermochemical energy storage material;

[0048] The second calculation module is used to calculate the annual replenishment amount of the thermochemical energy storage material based on the loss of the thermochemical energy storage material during the heat storage and release process, the loss of the thermochemical energy storage material during the transportation process, and the annual life loss of the thermochemical energy storage material;

[0049] An evaluation module is used to evaluate the application economics of the thermochemical heat storage material according to the annual replenishment amount of the thermochemical energy storage material.

[0050] The division of modules in the embodiments of the present application is illustrative and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional modules in the various embodiments of the present application may be integrated into a single processor, or may exist physically separately, or two or more modules may be integrated into a single module. The aforementioned integrated modules may be implemented in the form of hardware or software functional modules.

[0051] Example 3

[0052] A computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the method for evaluating the economic efficiency of thermochemical heat storage materials are implemented. For example, the method includes: obtaining operating data of a thermochemical energy storage system; determining the loss of thermochemical energy storage materials during heat storage and release, the loss of thermochemical energy storage materials during transportation, and the annual life loss of the thermochemical energy storage materials based on the operating data of the thermochemical energy storage system; calculating the annual replenishment amount of the thermochemical energy storage materials based on the loss of thermochemical energy storage materials during heat storage and release, the loss of thermochemical energy storage materials during transportation, and the annual life loss of the thermochemical energy storage materials; and evaluating the economic efficiency of the thermochemical heat storage materials based on the annual replenishment amount of the thermochemical energy storage materials. The memory may include a memory, such as a high-speed random access memory, or may also include a non-volatile memory, such as at least one disk storage device. The processor, network interface, and memory are interconnected via an internal bus. The internal bus may be an industry standard architecture bus, a peripheral component interconnect standard bus, an extended industry standard architecture bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. The memory is used to store programs. Specifically, the programs may include program codes, and the program codes include computer operation instructions. The memory may include internal memory and non-volatile memory, and provides instructions and data to the processor.

[0053] Example 4

[0054] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the method for evaluating the economic application of thermochemical heat storage materials, for example, including: obtaining operating data of a thermochemical energy storage system; determining the loss of thermochemical energy storage materials during heat storage and release, the loss of thermochemical energy storage materials during transportation, and the annual life loss of thermochemical energy storage materials based on the operating data of the thermochemical energy storage system; calculating the annual replenishment amount of thermochemical energy storage materials based on the loss of thermochemical energy storage materials during heat storage and release, the loss of thermochemical energy storage materials during transportation, and the annual life loss of thermochemical energy storage materials; and evaluating the economic application of thermochemical heat storage materials based on the annual replenishment amount of thermochemical energy storage materials. Specifically, the computer-readable storage medium includes, but is not limited to, volatile memory and / or non-volatile memory. The volatile memory may include random access memory (RAM) and / or cache memory, etc. The non-volatile memory may include read-only memory (ROM), hard disk, flash memory, optical disk, magnetic disk, etc.

[0055] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0056] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0057] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0058] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0059] Those skilled in the art will readily identify other embodiments of the present invention after considering the specification and disclosure of the invention. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0060] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0061] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A method for evaluating the economic efficiency of thermochemical heat storage materials, characterized in that: include: Obtaining operational data of thermochemical energy storage systems; Determining, based on the operating data of the thermochemical energy storage system, the loss of the thermochemical energy storage material during heat storage and release, the loss of the thermochemical energy storage material during transportation, and the annual life loss of the thermochemical energy storage material; Calculate the annual replenishment amount of thermochemical energy storage materials based on the loss of thermochemical energy storage materials during heat storage and release, the loss of thermochemical energy storage materials during transportation, and the loss of thermochemical energy storage materials over their lifetime; The application economics of the thermochemical heat storage material is evaluated based on the annual replenishment amount of the thermochemical energy storage material.

2. The method for evaluating the economic efficiency of thermochemical heat storage materials according to claim 1, characterized in that: The loss of thermochemical energy storage materials during the heat storage and release process is η1*q1*t1+η2*q2*t2, where η1 is the failure ratio of thermochemical energy storage materials in a single energy storage process, η2 is the failure ratio of thermochemical energy storage materials in a single energy release process, q1 is the transport cycle volume of thermochemical energy storage materials in the energy storage process of the thermochemical energy storage system, q2 is the transport cycle volume of thermochemical energy storage materials in the energy release process of the thermochemical energy storage system, t1 is the annual operating energy storage time of the system, and t2 is the annual operating energy release time of the system.

3. The method for evaluating the economic efficiency of thermochemical heat storage materials according to claim 1, characterized in that: The loss of thermochemical energy storage materials during the transportation process is ε*nx*η3*(q1*t1)=ε*t1 / (M / q1)*η3*(q1*t1), where ε is the number of transportation times of the thermochemical energy storage material, nx is the number of cycles of the actual thermochemical energy storage material per year, η3 is the wear coefficient of the thermochemical energy storage material in a single transportation cycle, q1 is the transportation cycle volume of the thermochemical energy storage material during the energy storage process of the thermochemical energy storage system, t1 is the annual operating energy storage time of the system, and M is the total amount of thermochemical energy storage material filled in the thermochemical energy storage system.

4. The method for evaluating the economic efficiency of thermochemical heat storage materials according to claim 1, characterized in that: The annual life loss of the thermochemical energy storage material is nx / n0*M=(t1 / (M / q1) / n0*M, where nx is the actual number of cycles of the thermochemical energy storage material per year, n0 is the total number of cycles of the designed thermochemical energy storage material, M is the total amount of thermochemical energy storage material filled in the thermochemical energy storage system, t1 is the annual operating energy storage time of the system, and q1 is the transport cycle amount of the thermochemical energy storage material during the energy storage process of the thermochemical energy storage system.

5. The method for evaluating the economic efficiency of thermochemical heat storage materials according to claim 1, characterized in that: The amount of materials that need to be replenished each year = the loss of materials in the heat storage and release process + the loss of materials in the transportation process + the loss of materials during the annual lifespan.

6. The method for evaluating the economic efficiency of thermochemical heat storage materials according to claim 1, characterized in that: The process of evaluating the application economics of the thermochemical heat storage material based on the annual replenishment amount of the thermochemical energy storage material is as follows: The cost of replenishing the thermochemical heat storage material each year is calculated based on the annual replenishment amount of the thermochemical energy storage material, and the economic efficiency of the application of the thermochemical heat storage material is evaluated based on the cost of replenishing the thermochemical heat storage material each year.

7. The method for evaluating the economic efficiency of thermochemical heat storage materials according to claim 6, characterized in that: The cost of replenishing thermochemical heat storage materials each year is the amount of materials required to be replenished each year * the cost of the materials.

8. A system for evaluating the economic efficiency of thermochemical heat storage materials, characterized in that: include: An acquisition module, used to obtain operating data of the thermochemical energy storage system; a first calculation module for determining, based on the operating data of the thermochemical energy storage system, the loss of the thermochemical energy storage material during heat storage and release, the loss of the thermochemical energy storage material during transportation, and the annual life loss of the thermochemical energy storage material; The second calculation module is used to calculate the annual replenishment amount of the thermochemical energy storage material based on the loss of the thermochemical energy storage material during the heat storage and release process, the loss of the thermochemical energy storage material during the transportation process, and the annual life loss of the thermochemical energy storage material; An evaluation module is used to evaluate the application economics of the thermochemical heat storage material according to the annual replenishment amount of the thermochemical energy storage material.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the steps of the method for evaluating the economic efficiency of application of thermochemical heat storage materials according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method for evaluating the economic efficiency of application of thermochemical heat storage materials according to any one of claims 1 to 7 are implemented.

Images