CN113266903A - Indoor temperature regulating system - Google Patents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0042—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater characterised by the application of thermo-electric units or the Peltier effect
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0075—Systems using thermal walls, e.g. double window
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
- F24F2005/0064—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0075—Systems using thermal walls, e.g. double window
- F24F2005/0078—Double windows
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Abstract
An indoor temperature adjusting system comprises a temperature adjusting glass body arranged in a window frame, wherein the temperature adjusting glass body comprises a three-layer structure which is respectively a middle layer, an outer layer and an inner layer, the middle layer is a thin-film solar cell, semiconductor couples are embedded at two ends of the thin-film solar cell, the outer layer and the inner layer are both made of glass coated with semitransparent heat dissipation films, the cold and hot ends of the semiconductor couples are connected with the heat dissipation films on the outer layer through a second-level heat conduction plate, and the thin-film solar cell is connected with a charging controller and a storage battery; the temperature-adjusting glass body is installed in the window frame, a ventilation opening and a fan are arranged at the position, close to the inner layer of the glass body, of the inner side of the window frame, the fan is used for increasing convection of air on the surface layer of the heat-dissipating film, and the storage battery is connected with a temperature control system. The invention can realize active temperature control, the cooling speed and the refrigeration temperature can be adjusted at will by changing the current, the flexibility is high, the energy consumption is low, and no refrigerant is needed.
Description
Technical Field
The invention relates to a temperature regulating system, in particular to an indoor temperature regulating system.
Background
With the development of social science and technology, the living standard of people is continuously provided, the requirement on temperature control in houses is higher and higher, and more methods for regulating and controlling indoor temperature are available in the market, wherein the methods mainly comprise the following types:
1. water injection glass
An experimental new "smart window" developed by scientists at southern Singapore university of oceanic workers, consisted of two pieces of ordinary glass, the space between which was filled with a hydrogel (solution of water and stabilizing compound) instead of air (a heat absorbing, light blocking liquid).
The transmittance of the hydrogel changes with temperature: during the day, as sunlight passes through the window, the liquid absorbs and stores the heat energy of the light, the hydrogel changes from a transparent state to an opaque state, and the need to operate the air conditioner is reduced. When the sun sets at night, the gel cools and becomes transparent again, releasing the stored heat energy. Part of the energy enters the room through the glass, and the requirement on a building heating system is reduced.
2. Thermotropic glass
Scientists of national renewable energy laboratories of the U.S. department of energy will make a breakthrough in the research and development of next-generation thermochromic windows, and the smart windows developed by the scientists can not only provide electric energy, but also reduce the demand of people on air conditioners.
The perovskite thin film is sandwiched between two layers of glass and vapor is injected. These vapors trigger reactions that align the perovskite material itself into different shapes, from chain-like to sheet-like to cubic. It is this change in shape of the material that causes a change in the color seen by a person. As solar energy heats the surface of such smart windows, the window slowly darkens after the intensity exceeds a certain threshold. On the other hand, when such smart windows change from transparent to colored, the perovskite material embedded in the material will generate electrical energy as well as the solar cell. (perovskite is a crystalline structure with very significant efficiency in light energy collection)
3. Air conditioner
The compressor compresses the gaseous refrigerant into high-temperature high-pressure gaseous refrigerant, the gaseous refrigerant is sent to the condenser to be cooled, the cooled medium-temperature high-pressure liquid refrigerant is changed into medium-temperature high-pressure liquid refrigerant, the medium-temperature high-pressure liquid refrigerant enters the drying bottle to be filtered and dehumidified, the medium-temperature liquid refrigerant is throttled and decompressed by the expansion valve to be changed into low-temperature low-pressure gas-liquid mixture, the low-temperature low-pressure gas-liquid mixture is evaporated by absorbing heat in air by the evaporator to be changed into gaseous refrigerant, and then the low-temperature low-pressure gas-liquid mixture returns to the compressor to be compressed continuously and is circulated to refrigerate continuously. When heating, a four-way valve makes the flow direction of Freon in the condenser and evaporator opposite to that of refrigerating, so that cold air is blown out from the room when heating, and hot air is blown out from the indoor unit.
4. Semiconductor air conditioner
The semiconductor refrigerating sheet (TE) is also called thermoelectric refrigerating sheet, is a heat pump, and has the advantages of no sliding part, limited space, high reliability requirement and no refrigerant pollution. The semiconductor refrigerating chip is operated by using direct current, which can refrigerate and heat, and the refrigeration or heating is realized on the same refrigerating chip by changing the polarity of the direct current, the effect is generated by the thermoelectric principle, the upper diagram is a single-chip refrigerating chip which consists of two ceramic chips, an N-type semiconductor material (bismuth telluride) and a P-type semiconductor material (bismuth telluride) are arranged between the two ceramic chips, and the semiconductor element is connected in series on the circuit. When an N-type semiconductor material and a P-type semiconductor material are connected into a galvanic couple pair, energy transfer can be generated after direct current is switched on in the circuit, the current absorbs heat from a joint of the N-type element flowing to the P-type element, becomes a cold end, releases heat from a joint of the P-type element flowing to the N-type element, and becomes a hot end. The magnitude of the heat absorption and release is determined by the magnitude of the current and the number of pairs of elements of semiconductor material N, P. The inside of the refrigerating sheet is a thermopile formed by coupling hundreds of pairs of electric couples, so as to achieve the effect of enhancing refrigeration (heating).
The thermotropic glass and the water injection glass belong to intelligent glass, chemical additives are added on the surface layer or the inner side of the glass, solar energy is absorbed to adjust transparency, the sunlight is reduced to enter a room, the indoor temperature is passively adjusted, the adjusting amplitude is small, and the effects of real intellectualization, regulation at any time and accurate temperature control cannot be achieved;
the Freon used by the air conditioner is not environment-friendly, the air circulation is poor, the air conditioner has small function of automatic ventilation even if the air conditioner has the automatic ventilation function, the temperature difference exists between the indoor and the outdoor, the air conditioner is easy to get too much power consumption when being frequently used, and the air conditioner enables a room to be dry and has poor skin effect. Secondly, a compressor used by the air conditioner is a mechanical part, certain noise is generated during working, the temperature can be adjusted by expansion with heat and contraction with cold of gas, and the temperature cannot be accurately adjusted;
the efficiency of the semiconductor air conditioner is much lower than that of a compressor air conditioner, the heat dissipation capacity of the air conditioner is larger than that of the air conditioner with the same refrigerating capacity after the semiconductor air conditioner is made, and the heat dissipation device is complex, high in energy consumption and high in cost no matter air cooling or water cooling is carried out.
CN201922304882.1 discloses semiconductor temperature-adjusting glass, which comprises hollow glass, wherein the hollow glass is composed of a first glass substrate and a second glass substrate, at least one group of temperature-adjusting semiconductors are arranged in the hollow glass, the temperature-adjusting semiconductors are electrically connected to a semiconductor power supply system, the semiconductor power supply system comprises a digital display temperature controller and a voltage converter, and the outer sides of the temperature-adjusting semiconductors are provided with heat dissipation films and heat preservation foams; the variable voltage frequency converter is externally connected with a household circuit; and an air pump is also arranged at one end of the heat dissipation film. The technical scheme has the defects of high energy consumption, insensitive temperature adjustment and the like, and is difficult to popularize in a large area in practical application.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides an indoor temperature regulating system capable of regulating indoor temperature with low energy consumption.
The invention solves the technical problem by adopting the technical scheme that the indoor temperature regulating system comprises a temperature regulating glass body arranged in a window frame, wherein the temperature regulating glass body comprises a three-layer structure which is respectively a middle layer, an outer layer and an inner layer, the middle layer is a thin-film solar cell, two ends of the thin-film solar cell are inlaid with semiconductor couples, the outer layer and the inner layer are both glass coated with semitransparent heat-radiating films, the cold and hot ends of the semiconductor couples are connected with the heat-radiating films on the outer layer through a secondary heat-conducting plate, and the thin-film solar cell is connected with a charging controller and a storage battery; the temperature-adjusting glass body is installed in the window frame, a ventilation opening and a fan are arranged at the position, close to the inner layer of the glass body, of the inner side of the window frame, the fan is used for increasing convection of air on the surface layer of the heat-dissipating film, and the storage battery is connected with a temperature control system.
Furthermore, the heat transfer coefficient of the heat dissipation film is more than or equal to 400W/square meter K.
By utilizing the invention, the active temperature control can be realized, the cooling speed and the refrigeration temperature can be adjusted at will by changing the current, the flexibility is high, and the energy consumption is low; no refrigerant is needed, no leakage exists, and no pollution exists; the working process has no noise, no abrasion and long service life.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a temperature-regulating glass body in the embodiment of FIG. 1;
FIG. 3 is a schematic diagram of an application of the embodiment of FIG. 1;
FIG. 4 is a graph showing the temperature variation curves of the two sides of the temperature-adjusting glass body in the application of FIG. 3.
In the figure: the solar energy thermal insulation glass comprises a window frame 1, a temperature-adjusting glass body 2, a middle layer 21, an outer layer 22, an inner layer 23, a semiconductor couple 3, a secondary heat-conducting plate 4, a charging controller 5, a storage battery 6, a ventilation opening 7, a fan 8 and a temperature control system 9.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to the attached drawings 1-3, the temperature-adjusting glass body 2 installed in a window frame 1 comprises a temperature-adjusting glass body 2, wherein the temperature-adjusting glass body 2 comprises a three-layer structure which is respectively a middle layer 21, an outer layer 22 and an inner layer 23, the middle layer 22 is a thin-film solar cell, semiconductor couples 3 are embedded at two ends of the thin-film solar cell, the outer layer 22 and the inner layer 23 are both made of glass, the surface layers of the glass are plated with semitransparent heat dissipation films (the heat transfer coefficient is more than 400W/square meter. K), the cold and hot ends of the semiconductor couples 3 are connected with the heat dissipation films on the outer layer through a secondary heat conduction plate 4, and the thin-film solar cell is sequentially connected with a charging controller 5 and a storage battery 6;
the temperature-adjusting glass body 2 is arranged in the window frame 1, a ventilation opening 7 and a fan 8 are arranged at the position, close to a heat dissipation film of the inner layer of the temperature-adjusting glass body 2, of the inner side of the window frame 1, the fan 8 is used for increasing convection of air on the surface layer of the heat dissipation film, the storage battery 6 is connected with a temperature control system 9, and the temperature control system 9 can accurately control a semiconductor and the fan 8 which are composed of a plurality of series/parallel semiconductor couples 3 to work according to indoor and outdoor temperatures.
The working process is as follows: in the daytime, sunlight irradiates a window, solar energy is converted into electric energy by the thin film solar cell of the temperature-adjusting glass body middle layer 21 on the window frame 1, the electric energy is input into the storage battery 6 through the charging controller 5 and stored in the storage battery 6, the thin film solar cell is semitransparent and can transmit visible light, the temperature control system 9 works, the working mode is adjusted according to indoor and outdoor temperature and humidity, the electric energy is output from the storage battery 6 to the fan 8 and the semiconductor couple 3 (connected with an indoor circuit if necessary), the semiconductor couple 3 works to transfer heat, after temperature difference is generated at two ends and is stable, the temperature difference of the semiconductor couple 3 is determined by input power, heat dissipation capacity and indoor and outdoor temperature difference, the balance and stability of the whole system mean that the three are balanced, the end with high temperature transfers the heat to the semitransparent heat dissipation film (the heat dissipation film can transmit visible light) outside the temperature-adjusting glass body outer layer 22 through the secondary heat conduction plate 4, the heat transfer coefficient is more than or equal to 400), the fan works to increase the convection coefficient (namely, increase the heat dissipation capacity) so as to accelerate the heat dissipation to reach balance, the end with low temperature absorbs the heat in the air (in principle, the increase of the convection coefficient is the acceleration of the heat absorption of the air), and the indoor air temperature in a certain range can be adjusted after a period of time after the balance is reached.
The principle of the invention takes the following points into consideration: the heat dissipation capacity of a room, the refrigerating and heating capacity of the semiconductor couple 3, the heat dissipation capacity of a window heat dissipation film, the power of a solar cell and the air temperature change gradient of the room.
(1) Simulated room heat dissipation calculation
TABLE 1 physical coefficients of general building materials
Calculating the heat dissipation capacity and the inner and outer surface temperatures of one wall body by the following steps:
q ═ KA Δ T formula 1.1
In formula 1.1: q: heat dissipating capacity
K: coefficient of heat dissipation
A: area of wall
Delta T: indoor and outdoor temperature difference
The heat transfer coefficient K value in equation 1.1 is calculated as follows:
in formula 1.2: delta-thickness of the Material layer (m)
Lambda-coefficient of thermal conductivity of material [ W/(m.k) ]
In general, outdoor air convection is natural convection, and at most two walls contact the outside, physical quantities (inner surface heat transfer coefficient, outer surface heat transfer coefficient, and heat transfer coefficient) in table 1 are introduced, and the value of the wall K contacting the outdoor air is calculated:
K＝1/(1/8.72+1/23.26+0.52)＝1.476w/m2*k
Q＝1.476*12*15＝265.68w
assuming that the indoor and outdoor temperatures of the bedroom are respectively 18 ℃ and 13 ℃, k values of corrected indoor and indoor wall surfaces are 1.3344, and Q values are 80.64w
Then a bedroom model is six wall bodies, and total heat dissipation capacity is:
total Q265.68 × 2+80.64 × 4 — 851.616w
When the area ratio of the window wall in a certain direction is calculated, special treatment is adopted as long as the area ratio of the window wall of one window opening in the house type of a single household exceeds a standard specified value (for example, the south direction is 0.35), and GB50176-93 civil building thermal design specifications specify: east-west should not be greater than 0.25 (single window) or 0.30 (double window) north window-to-wall ratio, should not be greater than 0.20.
The area of the bedroom is calculated between 3 and 4, the window area is calculated between 2.5 and 4, most of the families use the hollow glass at present, and the heat transfer coefficient of the hollow glass obtained by looking up the data shown in the table 2 is between 1.9 and 2.7.
TABLE 2 k values of different insulating glasses
The room size was 4 × 4m2, the window area was 4m2, the indoor and outdoor temperature difference was 10 ℃, and the window heat transfer coefficient was 2.5w/m2 × k, from which the heat dissipation of the window was calculated as:
q window 2.5 x 4 x 15 x 150w
Therefore, the heat dissipation capacity of one window is larger than that of one indoor wall, people can obviously feel cold at the window side in winter, and the window is designed to provide 150w of heat, so that most of heat can be prevented from being conducted from the indoor to the outdoor.
1) Winter heating
A room 4 x 4 square meters, the area of the heat dissipation film is a window 4 square meters, the indoor and outdoor temperatures are 18 ℃ and 3 ℃ respectively, the heat dissipation capacity of the room is 850W from the top, 50% heat is provided, and a small fan is added to perform forced convection on the air flow on the surface of glass in a window frame, the convection coefficient reaches 15-20W/(m ^ 2. DEG C), 8 semiconductors are needed, the temperature difference is 40 ℃ under the operation of rated voltage, the hot end of the indoor surface layer can reach more than 35 ℃, and the heat dissipation capacity of the hot end of the heat dissipation film is calculated:
Q＝KAΔT
in the formula: q: heat dissipating capacity
K: coefficient of convection
A: heat dissipation area
Δ T: temperature difference between hot end and air
When the limit voltage works, the heat dissipating capacity Q of the hot end of the semiconductor is 15 × 4 × 15 × 900w, the temperature gradient change on the heat dissipating film is considered, the temperatures of all points of the whole film are different and are sequentially reduced, the degree of heat exchange with the outside is also sequentially reduced, the reduction degree is related to the heat dissipating coefficient of the heat dissipating film, the distance between the heat dissipating coefficient and the hot end and the convection intensity of the outside air, the heat dissipating capacity is relatively adjusted to be about 50%, the heat dissipating capacity is larger than the heat generating capacity of the semiconductor, and the equipment can normally run.
2) Refrigerating in summer
The indoor air is lower than the outdoor air in temperature after a period of time, the solar intensity is reduced, the outdoor air is introduced into the window, the indoor air is discharged, auxiliary heat dissipation is carried out, the indoor air and the outdoor air are not greatly different in temperature in the second period of time, the solar intensity is greatly reduced, generally, the window starts to work at about five and six pm, the refrigerating capacity of the eight semiconductors is 270w, the air temperature in one meter of space of the window can be maintained to be 22 ℃, the air temperature in one meter to two meters is 25 ℃, the air temperature outside two meters can be normal outdoor temperature, the preset effect can be achieved within half an hour, and the indoor temperature and the outdoor temperature are 22 ℃ and 28 ℃. (calculation methods are as above)
(2) Gradient of air change in room
As shown in fig. 3: the heat of more than 50 percent is provided for the room, the temperature gradient in the space of one meter close to the window in the room is in a temperature range suitable for the human body in winter, the temperature gradient in two meters is sequentially reduced to the normal temperature, and the temperature of the whole room is increased by about half of the temperature in the first section after a period of time. Supposing that the outdoor temperature is 3 ℃ in winter, the indoor temperature is 18 ℃, a bedroom with 4 x 4 square meters is needed, the heat dissipation capacity is 850w, 425w heat is provided by the window design, air convection exists in a space close to the window by one meter, the achievable temperature is 20 ℃, the temperatures in the space from one meter to two meters are sequentially reduced, the air convection strength in the space is reduced, the temperature can reach 18 ℃, the heat dissipation area of the space from next time is doubled, the temperature gradient is reduced rapidly and is close to the normal temperature, the temperature change of the whole room is calculated by the air exchange rate provided by the window design and the air flow exchange degree in the space from two meters, and the effect can be achieved within half an hour in prediction.
(3) Experimental data
Taking TEC1-12706 as an example, the price is 12.23 yuan, 40 × 3.8mm, the semiconductor logarithm 127, the internal resistance is 2.1-2.5 ohm, the maximum working current is 5.8 ampere, the maximum working voltage is 15v (the working voltage is 0-12 v), the cold conversion efficiency is 0.639, the heat conversion efficiency is 1-1.1, the temperature difference can reach 45 ℃ (under the condition that the heat dissipation condition of the hot end is intact), the convection current is enhanced, the heating quantity is 57.6w and the refrigerating quantity is 36.4w when the rated voltage is adopted, and the measured data is obtained when the radiating fins (aluminum sheets) are added according to the following formula: initial temperature: the indoor temperature T1 is 20.5 ℃, the outdoor temperature T2 is 20.4 ℃, the temperature T3 of the hot end of the semiconductor is 20.1 ℃, the temperature T4 of the cold end of the semiconductor is 20.0 ℃, and the time is measured for 2 minutes each time.
A winter heating scene is simulated, a 30 x 40 x 30cm polyethylene foam model box is used as a 3 x 4 x 3m room, a TEC1-12706 semiconductor is used as semiconductor temperature adjusting glass, a 6 x 7cm radiating aluminum sheet is used as a radiating film, natural convection is carried out, a voltage within 12v is input, and the temperature of two sides of the semiconductor, the temperature in the room and the time are measured. Calculating the heating quantity and the heat dissipation quantity of the hot end of the semiconductor by using a formula Q ═ KA Delta t, and calculating the heating quantity and the heat dissipation quantity of the hot end of the semiconductor by using a formula Q ═ KA Delta t
And calculating the temperature at two ends of the semiconductor to achieve accurate temperature control and real-time regulation.
Initial temperature: the indoor temperature T1 is 20.5 ℃, the outdoor temperature T2 is 20.4 ℃, the temperature T3 of the hot end of the semiconductor is 20.1 ℃, the temperature T4 of the cold end of the semiconductor is 20.0 ℃, and the time is measured for 2 minutes each time.
TABLE 3 temperature on both sides of semiconductor, temperature and time in room
It can be observed from the data in table 3 and fig. 4 that the outdoor environment is large, the air flow is large, the temperature is almost kept constant, the indoor temperature slowly rises and stabilizes to reach about 22 ℃, the hot end temperature continuously rises and gets faster and faster to the back, the cold end temperature just begins to fall, and slowly rises afterwards, because the hot end heating capacity is larger than the heat dissipation capacity, the heat exchange in the semiconductor reaches balance, so that the indoor temperature slowly rises, the temperature regulation capacity is lower than the heat dissipation capacity, the heat exchange is increased, the cold end temperature rises, and the formula derivation is met. When the heat dissipation amount of the heat dissipation end is much smaller than the heating amount, the effect of the semiconductor will be reduced.
The whole is 4.6v, the optimal balance state is achieved at 0.9A, the indoor temperature is increased by 1.6 ℃ under the condition of natural convection, and the indoor temperature can be increased by about 5-6 ℃ by matching with other efficient heat dissipation conditions.
(4) Calculation of heat dissipation on a heat dissipation film
Q＝KAΔT
Wherein: k-convection coefficient between air and heat-dissipating film
A-area of heat-dissipating film
Delta T-temperature difference between heat-dissipating film and air
When natural convection is carried out, the convection coefficient is between 0 and 10, the forced convection is carried out by adding a fan, the heat transfer coefficient is generally more than 15, the heat loss caused by uniform diffusion from the cold end and the hot end of the semiconductor couple to the center is small due to the fact that the heat transfer coefficient of the heat dissipation film on the window is more than 400, the temperature difference is 2 to 4 ℃, and the temperature difference between the whole heat dissipation film and air can be calculated according to the average value; the window has large area and is the place where energy and air are most frequently exchanged with the outside, when the heating quantity is not changed and the temperature change on the whole radiating film is small, the radiating area is increased to two to three times of the original radiating area, the convection coefficient is reduced to more than half of the original radiating area, at the moment, under the condition of not influencing the transmittance of the glass, the work load of the fan is greatly reduced by the large enough radiating area, and the small forced convection replaces the original water cooling or large forced convection; meanwhile, the intelligent temperature control system selects proper power according to the temperature of indoor and outdoor air, and exchanges outdoor air with indoor air through the convection device after a set period of time, so that the freshness of the indoor air is kept, the indoor air can not be dried, and the air can be automatically purified.
(5) Power of solar cell
Second generation thin film solar cells have been applied and commercialized, and semitransparent thin film solar cells, such as amorphous silicon thin film solar cells and copper indium gallium selenide thin film solar cells, are available on the market. Different light transmittance ratios are manufactured according to the requirements, a glass curtain wall is replaced, the efficiency is 10-12%, the average daily sunshine is six to eight hours, the solar radiation is eight hundred to one thousand watts per hour, the area of a bedroom window with 4 x 3 square meters is 3 square meters, and energy can be supplied in one day:
3*8*1000*10％＝2400w
the power of the intelligent temperature control window in a room is 200 w-300 w when the intelligent temperature control window works generally, the power of the intelligent temperature control window in a room is about 400w in special weather, and the solar cell can be designed to work normally for 8-10 hours, so that zero energy consumption temperature adjustment is realized.
(6) Working processes are exemplified as follows:
the refrigeration semiconductor can be used for regulating and controlling the temperature of a space, and has advantages in a certain range due to efficiency problems, and compared with the space with such a large size in a bedroom, the effect of the semiconductor air conditioner designed at present is far lower than that of the traditional compression air conditioner. Thus, a compromise is made not to heat or cool the entire room, but rather the range of activities that the human body is normally active. In winter, the window can feel obviously cold within a range of one to two meters close to the window, the window is changed into a heat source, and the temperature of air near the window is adjusted, so that the window can normally work, read books and have a rest within the range. The invention can achieve the following effects:
a. the heat dissipation area of the window and proper convection can replace complex heat dissipation equipment, and meanwhile, indoor air and outdoor air can be exchanged to keep the indoor air fresh;
b. compared with passive temperature regulation in foreign countries, the invention can actively regulate temperature, and can regulate temperature with low energy consumption (even zero energy consumption) by matching with solar energy (preliminary calculation, the total power is about 300-400 w);
c. simple structure, it is with low costs, easily produce the industrialization, only need: the heat dissipation device comprises a fan, a temperature control device, a semitransparent heat dissipation film with a heat transfer coefficient of about 400 and 6-8 common semiconductors in the market.
The following is a working example of an embodiment of the invention:
(Summer)
in the morning: the sunlight is sufficient (the solar radiation is 500-700 w/m2) The solar battery absorbs solar energy and converts the solar energy into electric energy to be stored in the storage battery, and the temperature of outdoor air is lower than that of the roomThe concentration of the carbon dioxide in the air is lower than that in the room, the fan runs, the air in the room and the air out of the room are exchanged at regular time, and the air in the room is kept fresh;
at noon: the solar radiation is stronger (the solar radiation is 800-1000 w/m2) When the indoor temperature is higher than the set temperature, the semiconductor couple and the fan run to refrigerate the indoor, the indoor air is internally circulated, the semiconductor couple transfers the indoor heat to the outdoor, and the indoor air and the outdoor air are exchanged according to the carbon dioxide concentration of the indoor air at regular time;
in the afternoon: the solar radiation is weakened (the solar radiation is 500-700 w/m2) When the temperature of the indoor air is not much different from the temperature of the outdoor air, the indoor air circulates internally, and the indoor air and the outdoor air are exchanged regularly according to the concentration of carbon dioxide in the indoor air;
at night: when the indoor air temperature is in the set temperature range, the semiconductor couple does not run, the fan runs at regular time, and indoor and outdoor air is exchanged at regular time according to the carbon dioxide concentration of the indoor air;
in the morning: when the indoor air temperature is lower than the set air temperature, the semiconductor thermocouple and the fan work to heat the indoor air and internally circulate the indoor air, and the indoor air and the outdoor air are regularly exchanged according to the carbon dioxide concentration of the indoor air;
winter season
Day time: the solar cell works (solar radiation is 400-600 w/m2) The temperature of indoor air is lower than that of outdoor air, the semiconductor thermocouple and the fan work to heat the indoor air, the indoor air is internally circulated, and the indoor air and the outdoor air are exchanged at regular time according to the concentration of indoor carbon dioxide;
at night: the solar cell does not work, the indoor air temperature is lower than the outdoor air temperature, the semiconductor thermocouple and the fan work to heat the indoor air, the indoor air is internally circulated, and the indoor air and the outdoor air are exchanged at regular time according to the indoor carbon dioxide concentration;
in this embodiment: (1) the thermal property of the glass is changed at the place where the energy exchange between the indoor and outdoor sides of the window is maximum, the energy consumption can be reduced, the semiconductor is applied to the window, the active heating and refrigeration can be realized, the temperature can be automatically and accurately adjusted, the intelligence is higher than that of water injection glass and thermal deformation glass, and the better living environment is achieved;
(2) the working current of the refrigeration semiconductor couple is direct current, the refrigeration semiconductor couple can normally work under the voltage of several volts, the refrigeration semiconductor couple is matched with the thin-film solar cell to be simply converted, the heat loss is isolated on a window, the temperature in a certain space in a room is regulated, the zero-energy-consumption work can be realized, and the refrigeration semiconductor couple is green, environment-friendly and pollution-free;
(3) the refrigerating semiconductor couple does not have mechanical motion, noise and refrigerant during working, the size of a space structure does not influence the refrigerating and heating effects, and the refrigerating semiconductor couple is processed on window glass and matched with a high-efficiency heat dissipation film and a solar cell, so that the thinning and the miniaturization can be realized, no additional component is needed, the structure is simple, and the industrialization is easy to realize;
various modifications and variations of the present invention may be made by those skilled in the art, and they are still within the scope of the present patent invention provided they are within the scope of the claims and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (2)
1. The utility model provides an indoor temperature regulating system, is including installing the glass body that adjusts the temperature in the window frame, the glass body that adjusts the temperature includes three layer construction, is intermediate level, skin and inlayer, its characterized in that respectively: the middle layer is a thin-film solar cell, semiconductor couples are embedded at two ends of the thin-film solar cell, the outer layer and the inner layer are both made of glass with semitransparent heat dissipation films plated on the surfaces, the cold and hot ends of the semiconductor couples are connected with the heat dissipation films on the outer layer through a secondary heat conduction plate, and the thin-film solar cell is connected with a charging controller and a storage battery; the temperature-adjusting glass body is installed in the window frame, a ventilation opening and a fan are arranged at the position, close to the inner layer of the glass body, of the inner side of the window frame, the fan is used for increasing convection of air on the surface layer of the heat-dissipating film, and the storage battery is connected with a temperature control system.
2. The indoor temperature conditioning system according to claim 1, characterized in that: the heat transfer coefficient of the heat dissipation film is more than or equal to 400W/square meter K.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114991634A (en) * | 2022-06-29 | 2022-09-02 | 浙江极氪智能科技有限公司 | Temperature-adjustable glass and automobile |
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