Solar cooling system integrated in building envelope
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a solar energy and building envelope technology, applied in the field of solar energy-powered cooling systems, can solve the problems of reduced cooling capacity reduced cooling efficiency of solar energy chillers, and limited installation of such systems, so as to increase the cooling capacity and reduce the effect of solar energy consumption and cooling less
Inactive Publication Date: 2015-03-12
GUPTA SHISHIR +2
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[0025]Yet another object of the present invention is to design the system such that its cooling capacity increases with increase in available solar energy, hence it cools less when solar energy is less and cools more when solar energy is more.
Problems solved by technology
The refrigerant then passes through a throttle valve, which leads to a sudden decrease in the pressure of the refrigerant.
However the usage of such chillers using solar energy is still not cost effective and there have been very limited installations of such systems, especially in residential buildings.
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[0026]FIG. 3 is a schematic drawing of the 1st embodiment of the refrigeration system. 301 is the evaporation chamber which is in thermal contact with the region to be cooled (denoted by region C). Let the target temperature of region C be denoted by Tc. The temperature in chamber 301, denoted by Te should be such that Tec. From the thermodynamic properties of the refrigerant, the pressure inside the chamber 301, denoted by Pe is determined so that Te is the saturation temperature of the refrigerant in chamber 301. Chamber 301 absorbs heat from region C because of thermal contact between then causing the refrigerant to evaporate. On evaporation, refrigerant absorbs heat. Chamber 302 is the absorber chamber containing concentrated absorber, which is capable of absorbing refrigerant vapour. Presence of concentrated absorber also promotes evaporation of the refrigerant in chamber 301. Evaporated refrigerant from chamber 301 gets absorbed to the absorber in chamber 302. Absorption of re...
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Abstract
The present invention provides a solar cooling system which is so small in size so that it can be used as a building material. The design based on absorption and adsorption refrigeration cycle has been developed to fulfill this objective. The design has been developed such that the system is completely independent and does not require any other source of energy apart from solar heat. Also an effort is made to design the system so that the cooling capacity is automatically increased or decreased based on available solar heat energy.
Description
REFERENCES CITEDUS Patent Numbers:[0001]U.S. Pat. No. 8,479,529[0002]U.S. Pat. No. 8,353,170[0003]U.S. Pat. No. 8,006,515[0004]U.S. Pat. No. 5,181,387[0005]U.S. Pat. No. 4,987,748[0006]U.S. Pat. No. 4,903,503[0007]U.S. Pat. No. 7,918,095[0008]U.S. Pat. No. 7,762,103[0009]U.S. Pat. No. 7,257,951[0010]U.S. Pat. No. 6,397,625[0011]U.S. Pat. No. 6,116,039[0012]U.S. Pat. No. 4,881,376FIELD OF THE INVENTION[0013]The present invention relates a solar powered cooling system used in HVAC (Heat Ventilation and Air Conditioning) system of buildings. More particularly, the present invention relates to absorption or adsorption based refrigeration system integrated in the outside envelope of any construction to cool the inside using solar energy. The solar cooling system is made compact so that it can be easily integrated in the building envelope.BACKGROUND OF THE INVENTION[0014]The absorption or adsorption based cooling system uses heat to provide air-conditioning. These are popular air-conditio...
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Patent Type & Authority Applications(United States)
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