Absorption heat pumps, absorption refrigeration machines and absorption heat transformers based on emim acetate/methanol

Abstract

Absorption heat pumps, absorption refrigeration machines and absorption heat transformers (referred to as apparatus for short) operated using A) methanol as refrigerant and B) a composition comprising the ionic liquid 1-ethyl-3-methylimidazolium acetate (EMIM acetate for short) as absorption medium.

1 . An absorption heat pump, absorption refrigeration machine or absorption heat transformer (referred to as apparatus for short) operated using
 A) methanol as refrigerant and   B) a composition comprising the ionic liquid 1-ethyl-3-methylimidazolium acetate (EMIM acetate for short) as absorption medium.   
     
     
         2 . The apparatus according to  claim 1  or  2 , wherein the composition B) comprises more than 90% by weight of the ionic liquid 1-ethyl-3-methylimidazolium acetate. 
     
     
         3 . An absorption heat pump, absorption refrigeration machine or absorption heat transformer comprising a liquefier, an expansion element, a boiler, an absorber and
 A) methanol as refrigerant and   B) a composition comprising the ionic liquid 1-ethyl-3-methylimidazolium acetate as absorption medium.   
     
     
         4 . The absorption heat pump according to any of  claims 1  to  3 , wherein the refrigerant A) is absorbed in the composition B). 
     
     
         5 . The absorption refrigeration machine according to any of  claims 1  to  3 , wherein the refrigerant A) is absorbed in the composition B). 
     
     
         6 . The absorption heat transformer according to any of  claims 1  to  3 , wherein the refrigerant A) is absorbed in a composition B). 
     
     
         7 . The absorption refrigeration machine according to any of  claims 1  to  3 , wherein solar heat or the waste heat from an engine is utilized for operating the apparatus.