Air conditioner and control method thereof
The air conditioner calculates the dew point temperature and blows air below the dew point temperature, using condensation to automatically clean the outer surface of the window glass. This solves the problem of reduced light transmission and visual aesthetics caused by dust accumulation on the window glass, achieving an automated cleaning effect without human intervention.
Patent Information
- Application Number
- CN202310710202.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-14
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2043-06-14
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Figure CN119146547B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of air conditioning technology, and in particular to an air conditioner and its control method. Background Technology
[0002] Currently, windows serve as the "eyes" connecting the interior and exterior, allowing natural light into the room. However, the exterior of window glass is constantly exposed to the elements, and dust accumulates on its surface, obstructing light transmission and affecting visual aesthetics, thus impacting user experience. Currently, window cleaning is typically done manually, which is not only time-consuming and laborious but also presents problems such as missed areas and inconsistent cleaning times. Furthermore, for residents of high-rise buildings, manual glass cleaning poses significant safety hazards. Summary of the Invention
[0003] In view of the above problems, the present invention is proposed to provide an air conditioner and its control method that overcome or at least partially solve the above problems, enabling the air conditioner to have the function of automatically cleaning the outer surface of the glass, so as to replace manual cleaning of the glass.
[0004] On one hand, the present invention provides a control method for an air conditioner, comprising:
[0005] In response to the fulfillment of the triggering conditions for the clean glass mode, the dew point temperature at which condensation occurs on the outer surface of the target window's glass is calculated.
[0006] The air conditioner is controlled to activate the glass cleaning mode and blow air at a first temperature, which is lower than the dew point temperature.
[0007] Optionally, the control method further includes:
[0008] In response to the activation of the clean glass mode, the air conditioner is controlled to direct airflow toward the target window.
[0009] Optionally, the control method further includes: acquiring an image of the target window glass using an image sensor to determine the cleanliness parameters of the glass's outer surface;
[0010] The cleanliness parameters include: dust location, dust range, and / or dust concentration;
[0011] The triggering conditions for the clean glass mode include:
[0012] The dust range is greater than a preset range value; and / or
[0013] The dust concentration is greater than a preset concentration value;
[0014] The control method further includes:
[0015] In response to the activation of the glass cleaning mode, the air conditioner is controlled to blow air toward the dusty location.
[0016] Optionally, the control method further includes: acquiring outdoor ambient humidity;
[0017] The triggering conditions for the clean glass mode include: the outdoor ambient humidity is greater than a preset humidity value.
[0018] The control method further includes:
[0019] The runtime of the clean glass mode is positively correlated with the dust range; and / or
[0020] The running time of the clean glass mode is positively correlated with the dust concentration.
[0021] Optionally, the control method further includes:
[0022] In response to the air conditioner discharging air at a first temperature for a time that is greater than or equal to a preset time, the condensation rate is calculated.
[0023] Determine whether the condensation rate is greater than or equal to a preset rate value;
[0024] If so, then control the air conditioner to continue blowing air at the first temperature;
[0025] If not, control the air conditioner to end the glass cleaning mode.
[0026] Optionally, in response to the air conditioner discharging air at a first temperature for a time that is greater than or equal to a preset time, the condensation rate is calculated.
[0027] Determine whether the condensation rate is greater than or equal to a preset rate value;
[0028] If so, then control the air conditioner to continue blowing air at the first temperature;
[0029] If not, the air conditioner will be controlled to blow air at a second temperature, which is lower than the first temperature.
[0030] Optionally, the calculation of the condensation rate includes:
[0031] Obtain the current outdoor ambient humidity and the humidity of the glass exterior surface;
[0032] The condensation rate is calculated based on the outdoor ambient temperature and humidity and the humidity of the glass outer surface.
[0033] The formula for calculating the condensation rate of the dew is:
[0034]
[0035] In the formula, C1 represents the outdoor ambient humidity, C sThe humidity of the outer surface of the glass, h D This represents the mass transfer coefficient.
[0036] Optionally, the control method further includes:
[0037] The mass transfer coefficient h is calculated based on the Reynolds number Re. D ;
[0038] The formula for calculating the Reynolds number is:
[0039] Re=ρvL / μ
[0040] When the Reynolds number is less than a first preset value, the formula for calculating the mass transfer coefficient is:
[0041]
[0042] When the Reynolds number is greater than or equal to a first preset value and less than a second preset value, the formula for calculating the mass transfer coefficient is:
[0043]
[0044] When the Reynolds number is greater than or equal to the second preset value, the formula for calculating the mass transfer coefficient is:
[0045]
[0046] In the formula,
[0047] Where ρ is the fluid density, with units of kg / m³. 3 μ is the viscosity coefficient; v is the characteristic velocity of the flow field; L is the characteristic length of the flow field; D is the diffusion coefficient between air and water vapor; Δy is the thickness of the near-wall element; μ t S is the eddy current viscosity, measured in Pa·s. ct ρ is the turbulent Schmidt number; h is the thermal conductivity coefficient; the unit is W / (m³). 2 .K); Le is the Lewis number; C p λ is specific heat, in J / (kg·K); λ is thermal conductivity, in W / (m·K); D is diffusion coefficient, in m³ / s. 2 / s.
[0048] The present invention also provides an air conditioner, including a control device, the control device including a memory and a processor, the memory storing a control program, the control program being executed by the processor to implement the control method of the air conditioner described in any of the above claims.
[0049] In the air conditioner control method of this invention, when the triggering conditions for the glass cleaning mode are met, the air outlet temperature of the air conditioner is adjusted to a first temperature lower than the dew point temperature. This creates a certain temperature difference between the inside and outside of the glass. Under the influence of this temperature difference, condensation forms on the outer surface of the glass, creating a water flow that washes away dust, thus achieving automatic cleaning of the glass surface. In other words, this invention utilizes the basic air supply function of the air conditioner to autonomously clean the outer surface of the glass, realizing the function of automatic cleaning of the glass surface. It also provides the beneficial effects of timely cleaning, a large cleaning coverage area, and complete elimination of manual intervention, solving the problems of laborious, incomplete, and potentially dangerous manual glass cleaning in existing technologies.
[0050] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description
[0051] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:
[0052] Figure 1 This is a schematic flowchart of a control method for an air conditioner according to an embodiment of the present invention;
[0053] Figure 2 This is a schematic flowchart of a control method for an air conditioner according to another embodiment of the present invention;
[0054] Figure 3 This is a schematic flowchart of a control method for an air conditioner according to another embodiment of the present invention. Detailed Implementation
[0055] The following reference Figures 1 to 3 This invention describes the control method and air conditioner of an air conditioner according to embodiments of the present invention.
[0056] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. 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.
[0057] Figure 1 This is a schematic flowchart of an air conditioner control method according to an embodiment of the present invention, and in conjunction with... Figure 2-3 This invention provides a control method for an air conditioner. The air conditioner has a glass cleaning mode.
[0058] The control method for air conditioners includes the following steps:
[0059] Step S11: In response to the fulfillment of the triggering conditions for the clean glass mode, calculate the dew point temperature at which condensation occurs on the outer surface of the target window's glass.
[0060] Step S12: Control the air conditioner to start the glass cleaning mode and blow air at a first temperature, which is lower than the dew point temperature.
[0061] Specifically, when the trigger conditions for the clean glass mode are met, the dew point temperature at which condensation occurs on the outer surface of the target window is calculated. Then, the clean glass mode is activated, and the air conditioner's outlet temperature is adjusted to a first temperature below the dew point temperature. The dew point temperature refers to the upper limit T0 of the indoor temperature at which condensation occurs on the outer surface of the glass; that is, when the indoor temperature is T0, condensation can occur on the outer surface of the glass, which is the critical value. Adjusting the air conditioner's outlet temperature to a first temperature below the dew point temperature allows a certain amount of condensation to occur on the outer surface of the glass, forming water flow.
[0062] In this embodiment, when the triggering conditions for the glass cleaning mode are met, the air outlet temperature of the air conditioner is adjusted to a first temperature lower than the dew point temperature. This creates a temperature difference between the inside and outside of the glass. Under the influence of this temperature difference, condensation forms on the outer surface of the glass, creating a water flow that washes away dust, thus achieving automatic cleaning of the glass surface. In other words, this invention utilizes the basic air supply function of the air conditioner to autonomously clean the outer surface of the glass, realizing the function of automatic glass cleaning. It also provides timely cleaning, a large cleaning coverage area, and eliminates the need for manual intervention, solving the problems of laborious, incomplete, and potentially dangerous manual glass cleaning in existing technologies.
[0063] In some alternative embodiments of the present invention, the control method further includes: controlling the air conditioner to vent air toward the target window in response to the activation of the clean glass mode.
[0064] Specifically, such as Figure 2 As shown, the control method for an air conditioner includes the following steps:
[0065] Step S21: In response to the fulfillment of the triggering conditions for the clean glass mode, calculate the dew point temperature at which condensation occurs on the outer surface of the target window's glass.
[0066] Step S22: Control the air conditioner to activate the glass cleaning mode, discharging air at a first temperature and directed towards the target window glass, where the first temperature is lower than the dew point temperature. In some alternative embodiments, in response to the activation of the glass cleaning mode, the air conditioner may also be controlled to dissipate air towards the vicinity of the target window or other locations.
[0067] In this embodiment, after the glass cleaning mode is activated, the air conditioner blows air towards the target window. Compared with the way the air conditioner blows air towards other locations, this can improve the condensation efficiency of condensation on the outer surface of the glass, thereby improving the cleaning efficiency of the glass and saving energy.
[0068] In some optional embodiments of the present invention, the control method further includes: acquiring an image of the target window glass using an image sensor to determine the cleanliness parameters of the outer surface of the glass.
[0069] Specifically, the cleanliness parameters of the outer surface of the glass are determined based on the imaging and comparison functions of the image sensor.
[0070] In some alternative embodiments of the present invention, the control method further includes: controlling the air conditioner to blow air toward the dust location in response to the activation of the clean glass mode.
[0071] In this embodiment, compared with blowing air towards the entire glass, blowing air onto a localized area of the glass (dust area) can quickly form a large amount of condensation at that location, thereby further improving the cleaning efficiency of the dust area.
[0072] In some embodiments of the present invention, the cleanliness parameters include: dust location, dust range, and dust concentration.
[0073] In this embodiment, the triggering conditions for the glass cleaning mode include: the dust range being greater than a preset range value; and the dust concentration being greater than a preset concentration value. In some alternative embodiments, the triggering conditions for the glass cleaning mode include: the dust range being greater than a preset range value; or, the dust concentration being greater than a preset concentration value.
[0074] More preferably, the running time of the glass cleaning mode is positively correlated with the dust range and the dust concentration. In other words, the running time of the glass cleaning mode is determined by both the dust range and the dust concentration; the larger the dust range and the higher the dust concentration, the longer the running time of the glass cleaning mode.
[0075] In some alternative embodiments of the present invention, the cleanliness parameters include: dust location and dust range. The triggering condition for the glass cleaning mode includes: the dust range being greater than a preset range value. Further, the running time of the glass cleaning mode is positively correlated with the dust range. The larger the dust range, the longer the running time of the glass cleaning mode.
[0076] In some alternative embodiments of the present invention, the cleanliness parameters include: dust location and dust concentration. The triggering condition for the glass cleaning mode includes: the dust concentration being greater than a preset concentration value. The running time of the glass cleaning mode is positively correlated with the dust concentration. The higher the dust concentration, the longer the running time of the glass cleaning mode.
[0077] In some optional embodiments of the present invention, the control method further includes: acquiring the outdoor ambient humidity. The triggering condition for the clean glass mode includes: the outdoor ambient humidity being greater than a preset humidity value.
[0078] Preferably, the preset humidity value is 50% to 90%.
[0079] More preferably, the preset humidity value is 70% to 80% (e.g., 70%, 73%, 75%, 78%, or 80%).
[0080] In this embodiment, when the outdoor humidity is relatively high, the dew point temperature at which condensation forms on the outer surface of the target window glass is relatively high, resulting in a relatively high initial temperature. In other words, even with a relatively small temperature difference between the inside and outside of the glass, a large amount of condensation can be formed. Therefore, this design not only saves energy but also improves the condensation efficiency, thereby enhancing the cleaning efficiency and effectiveness of the glass.
[0081] In some alternative embodiments of the present invention, the triggering conditions for the clean glass mode include a first condition and a second condition.
[0082] The first condition is: the dust range is greater than a preset range value and the dust concentration is greater than a preset concentration value; or, the dust range is greater than a preset range value or the dust concentration is greater than a preset concentration value.
[0083] The second condition is that the outdoor ambient humidity is greater than the preset humidity value.
[0084] In this embodiment, both the first and second conditions must be met simultaneously to trigger the glass cleaning mode; that is, both the first and second conditions must be met simultaneously for the air conditioner to activate the glass cleaning mode. Compared to using only the first or second condition as the trigger condition, this improves glass cleaning efficiency and saves energy.
[0085] In other alternative embodiments of the present invention, the trigger condition for the cleaning glass mode is receiving a control command input by the user to start cleaning the glass.
[0086] In some optional embodiments of the present invention, the calculation of the dew point temperature at which condensation occurs on the outer surface of the target window glass includes: calculating the dew point temperature based on the obtained outdoor ambient humidity and outdoor ambient temperature.
[0087] The formula for calculating the dew point temperature is:
[0088]
[0089] In the formula,
[0090] Where T is the outdoor ambient temperature, in °C; T d T is the dew point temperature. d The unit is ℃;
[0091] RH represents outdoor ambient humidity; Ln represents the natural logarithm; the constants a and b are: a = 17.27℃, b = 237.7℃.
[0092] In this embodiment, when calculating the dew point temperature, the outdoor ambient humidity and outdoor ambient temperature are first obtained, and then the calculation is performed according to the aforementioned formula for calculating the dew point temperature. Specifically, a first hygrometer and a first temperature sensor are installed outdoors. The first hygrometer is used to obtain the outdoor ambient humidity; the first temperature sensor is used to obtain the outdoor ambient temperature. Alternatively, a first temperature and humidity sensor is installed outdoors to obtain the outdoor ambient humidity and outdoor ambient temperature.
[0093] Based on the above formula, the dew point temperature under different outdoor ambient temperatures and different outdoor ambient humidity was calculated, as shown in Table 1: Under the same outdoor ambient temperature, the higher the outdoor ambient humidity, the smaller the temperature difference between the outdoor ambient temperature and the dew point temperature.
[0094] Table 1
[0095]
[0096] In some optional embodiments of the present invention, the first temperature is the product of the dew point temperature and a preset coefficient, wherein the preset coefficient is less than 1.
[0097] Preferably, the preset coefficient is 60% to 95% (e.g., 60%, 70%, 80%, 85%, or 90%).
[0098] More preferably, the preset coefficient is 90%.
[0099] In some optional embodiments of the present invention, the control method further includes: in response to the air conditioner discharging air at a first temperature for a time greater than or equal to a preset time, calculating the condensation rate; determining whether the condensation rate is greater than or equal to a preset rate value; if so, controlling the air conditioner to continue discharging air at the first temperature; if not, controlling the air conditioner to discharge air at a second temperature, wherein the second temperature is less than the first temperature.
[0100] Specifically, such as Figure 3 As shown, the control method for an air conditioner includes the following steps:
[0101] Step S31: In response to the fulfillment of the triggering conditions for the clean glass mode, calculate the dew point temperature at which condensation occurs on the outer surface of the target window's glass.
[0102] Step S32: Control the air conditioner to start the glass cleaning mode and blow air at a first temperature, which is lower than the dew point temperature.
[0103] Step S33: When the time for which the air conditioner blows air at the first temperature is greater than or equal to a preset time, calculate the condensation rate.
[0104] Step S34: Determine whether the condensation rate is greater than or equal to a preset rate value.
[0105] Step S35: If yes, control the air conditioner to continue blowing air at the first temperature; if no, control the air conditioner to blow air at the second temperature, where the second temperature is lower than the first temperature.
[0106] Further, in step S32, the air conditioner is controlled to start the glass cleaning mode, and air is vented at a first temperature and directed toward the glass of the target window, wherein the first temperature is lower than the dew point temperature.
[0107] In this embodiment, if the time for air to be discharged at the first temperature reaches a preset time and the condensation rate is less than a preset rate value, the air outlet temperature of the air conditioner is reduced, which can further increase the temperature difference between the inside and outside of the glass, thereby further increasing the condensation rate and thus improving the cleaning efficiency of the outer surface of the glass.
[0108] In some alternative embodiments of the present invention, the control method further includes: in response to the air conditioner blowing air at a first temperature for a time greater than or equal to a preset time, calculating the condensation rate; determining whether the condensation rate is greater than or equal to a preset rate value; if so, controlling the air conditioner to continue blowing air at the first temperature; if not, controlling the air conditioner to end the glass cleaning mode.
[0109] In some optional embodiments of the present invention, the calculation of the condensation rate includes the following steps: obtaining the current outdoor ambient humidity and the humidity of the outer surface of the glass; and calculating the condensation rate based on the outdoor ambient temperature and humidity and the humidity of the outer surface of the glass.
[0110] The formula for calculating the condensation rate of the dew is:
[0111]
[0112] In the formula, C1 represents the outdoor ambient humidity (the mass fraction of vapor in the outside air), C s The humidity (mass fraction of vapor at saturation on the glass surface) is expressed as h. D This represents the mass transfer coefficient.
[0113] Furthermore, in some optional embodiments of the present invention, the control method further includes: calculating the mass transfer coefficient h based on the Reynolds number Re. D .
[0114] The formula for calculating the Reynolds number is:
[0115] Re=ρvL / μ
[0116] In the formula, ρ is the fluid density, μ is the viscosity coefficient, v is the characteristic velocity of the flow field, and L is the characteristic length of the flow field.
[0117] The mass transfer coefficient h is calculated based on the Reynolds number Re. D Specifically, it includes:
[0118] When the Reynolds number is less than a first preset value, the formula for calculating the mass transfer coefficient is:
[0119]
[0120] Where ρ is the fluid density, with units of kg / m³. 3 D is the diffusion coefficient between air and water vapor; Δy is the thickness of the near-wall element.
[0121] When the Reynolds number is greater than or equal to a first preset value and less than a second preset value, the formula for calculating the mass transfer coefficient is:
[0122]
[0123] Where ρ is the fluid density, with units of kg / m³. 3 D is the diffusion coefficient between air and water vapor; Δy is the near-wall element thickness; μ t Eddy viscosity, measured in Pa·s; S ctThis refers to the turbulent Schmidt number.
[0124] When the Reynolds number is greater than or equal to the second preset value, the formula for calculating the mass transfer coefficient is:
[0125]
[0126] In the formula,
[0127] Where ρ is the fluid density, with units of kg / m³. 3 h is the heat transfer coefficient, with units of W / (m²). 2 .K); Le is the Lewis number; C p λ is specific heat, measured in J / (kg·K); λ is thermal conductivity, measured in W / (m·K); D is diffusivity, measured in m³ / s. 2 / s.
[0128] Specifically, the first preset value is less than the second preset value. The second preset value can be 1000. When the Reynolds number is less than the first preset value, the fluid flow is stable, the fluid is laminar, and the mesh is sufficiently fine. When the Reynolds number is greater than or equal to the first preset value, the fluid flow is less stable and is turbulent.
[0129] In some optional embodiments of the present invention, the control method further includes: when the air conditioner meets the termination condition of the glass cleaning mode, ending the glass cleaning mode and adjusting the operating mode of the air conditioner back to the original operating mode before the glass cleaning mode was started.
[0130] The conditions for ending the glass cleaning mode include: the glass cleaning mode running for a set time; or, the outdoor ambient humidity being lower than a set humidity value. Further, the set humidity value is less than 50%; even further, the set humidity value is less than 30%.
[0131] The present invention provides an air conditioner, the air conditioner including a control device, the control device including a memory and a processor, the memory storing a control program, the control program being executed by the processor to implement the control method of the air conditioner described in any of the above embodiments.
[0132] In some optional embodiments of the present invention, the air conditioner includes an outdoor unit, on which a first hygrometer and a first temperature sensor are mounted. The first hygrometer is used to acquire the outdoor ambient humidity; the first temperature sensor is used to acquire the outdoor ambient temperature. The first hygrometer and the first temperature sensor are communicatively connected to the control device.
[0133] In some optional embodiments of the present invention, the air conditioner includes an outdoor unit, and a first temperature and humidity sensor is installed on the casing of the outdoor unit to acquire outdoor ambient humidity and outdoor ambient temperature. The first temperature and humidity sensor is communicatively connected to the control device.
[0134] In some optional embodiments of the present invention, a second temperature and humidity sensor is installed on the outer surface of the glass to acquire the humidity and temperature of the outer surface of the glass. The second temperature and humidity sensor is communicatively connected to a control device.
[0135] In some optional embodiments of the present invention, a second hygrometer and a second temperature sensor are mounted on the outer surface of the glass. The second hygrometer is used to acquire the humidity of the outer surface of the glass; the second temperature sensor is used to acquire the temperature of the outer surface of the glass. The second hygrometer and the second temperature sensor are communicatively connected to the control device.
[0136] In some optional embodiments of the present invention, the air conditioner includes an indoor unit, and a third temperature sensor is installed at the air outlet of the indoor unit or on the inner surface of the glass; the third temperature sensor is used to acquire the temperature of the inner surface of the glass or to acquire the indoor ambient temperature. The third temperature sensor is communicatively connected to the control device.
[0137] In some alternative embodiments of the present invention, an image sensor is installed outdoors, and the image sensor is communicatively connected to the control device.
[0138] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.
Claims
1. A control method of an air conditioner, characterized by, The control method comprises: in response to a trigger condition of a glass cleaning mode being met, calculating a dew point temperature at which condensation occurs on an outer surface of glass of a target window; controlling the air conditioner to start the glass cleaning mode and to blow air at a first temperature, the first temperature being lower than the dew point temperature; in response to a time during which the air conditioner blows air at the first temperature being greater than or equal to a preset time, calculating a condensation condensation rate; determining whether the condensation condensation rate is greater than or equal to a preset rate value; if yes, controlling the air conditioner to continue blowing air at the first temperature; if no, controlling the air conditioner to end the glass cleaning mode or to blow air at a second temperature, the second temperature being lower than the first temperature.
2. The control method according to claim 1, characterized by, The control method further comprises: in response to the glass cleaning mode being started, controlling the air conditioner to blow air towards the outer surface of glass of the target window.
3. The control method according to claim 1, wherein the control method further comprises: acquiring an image of the outer surface of glass of the target window by using an image sensor to determine a cleanliness parameter of the outer surface of glass; the cleanliness parameter comprises: a dust position, a dust range and / or a dust concentration; the trigger condition of the glass cleaning mode comprises: the dust range being greater than a preset range value; and / or the dust concentration being greater than a preset concentration value; the control method further comprises: in response to the glass cleaning mode being started, controlling the air conditioner to blow air towards the dust position.
4. The control method according to claim 1, wherein the control method further comprises: acquiring an outdoor environment humidity; the trigger condition of the glass cleaning mode comprises: the outdoor environment humidity being greater than a preset humidity value.
5. The control method according to claim 3, characterized by, the control method further comprises: a running time of the glass cleaning mode being positively correlated with the dust range; and / or the running time of the glass cleaning mode being positively correlated with the dust concentration.
6. The control method according to claim 1, wherein the calculation of the condensation condensation rate comprises: acquiring a current outdoor environment humidity and a glass surface humidity; calculating the condensation condensation rate according to the outdoor environment humidity and the glass surface humidity; a formula for calculating the condensation condensation rate is: wherein C1 represents the outdoor ambient humidity, C s represents the glass outer surface humidity, h D represents the mass transfer coefficient.
7. The control method according to claim 6, characterized by the control method further comprises: The mass transfer coefficient h is calculated according to the Rayleigh number Re D ; a formula for calculating the Reynolds number is: Re = p v L / m when the Reynolds number is less than a first preset value, a formula for calculating the mass transfer coefficient is: when the Reynolds number is greater than or equal to the first preset value and less than a second preset value, a formula for calculating the mass transfer coefficient is: when the Reynolds number is greater than or equal to the second preset value, a formula for calculating the mass transfer coefficient is: In the formulae, where p is the fluid density in Kg / m 3 ; m is the viscosity coefficient; v is the characteristic velocity of the flow field; L is the characteristic length of the flow field; D is the diffusion coefficient between air and water vapor; Ay is the near-wall cell thickness; m t is the eddy viscosity in Pa.S; S ct is the turbulent Schmidt number; h is the heat transfer coefficient in W / (m 2 .K); Le is the Lewis number; C p is the specific heat in J / (Kg.K); l is the thermal conductivity in W / (m.K); D is the diffusion coefficient in m 2 / s.
8. An air conditioner characterized by comprising: The control device comprises a memory and a processor, the memory stores a control program, and the control program is executed by the processor to implement the control method of the air conditioner according to any one of claims 1 to 7.
Citation Information
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