Solar cooling system integrated in building envelope

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.

We claim: 
     
         1 . a solar cooling system of miniature size in form of a tile or brick so that it can be used as a building material; 
     
     
         2 . an absorption based solar cooling system which meets the requirement of claim ( 1 ); 
     
     
         3 . an adsorption based solar cooling system which meets the requirement of claim ( 1 ); 
     
     
         4 . an absorber-based cooling system n claim ( 1 ) which uses a high density liquid head to maintain pressure difference between the absorber and the generator chambers instead of a mechanical pump. 
     
     
         5 . a solar cooling system of claim ( 1 ) with variable capacity and it changes capacity with increase or decrease in available solar energy; 
     
     
         6 . an absorption or adsorption based cooling system of claims ( 2 ) and ( 3 ) in which the refrigerant is cooled in condenser then it is circulated in absorber/adsorber chamber to cool down the absorber/adsorber, then it is again cooled down to close to ambient condition using a second condenser before discharging the refrigerant inside the evaporator chamber; 
     
     
         7 . an absorption cooling system of claim ( 2 ) which uses reverse osmosis membrane to transport refrigerant; 
     
     
         8 . an absorption cooling system of claim ( 2 ) which uses capillaries to transport the absorber and refrigerant; 
     
     
         9 . an adsorption cooling system of claim ( 3 ) which comprises of a rotating adsorber to convert batch process of adsorption cycle in to a continuous cycle: