with an absorber unit 60 to supply vaporous refrigerant to absorber 60 where it is absorbed by the absorbent enriched solution that was rejected by separator unit 20 a compressor 70 may be included between evaporator 50 and absorbent 60 to raise the pressure of the refrigerant vapor from that at evaporator 50 to a proper pressure level for passage through absorber 60 particularly the refrigerant vapor pressure should be higher at the evaporator temperature than the vapor pressure of the absorbent enriched solution at the absorber temperature to realize the necessary pressure gradient for introduction of the refrigerant vapor into the absorber for many refrigerant absorbent solutions this will naturally occur and compressor 70 will not be required in absorber 60 the absorbent enriched solution from membrane separator 20 is introduced along with vaporous refrigerant from evaporator 50 and the refrigerant vapors are absorbed by the absorbent solution to reconstitute the original refrigerant absorbent solution subsequent to absorber 60 the reconstituted refrigerant absorbent solution is transported through process line 17 to pump 10 and the separation heat transfer absorption cycle is then repeated moreover heat removal from absorber 60 may be used in the heating mode to heat a desired area with energy supplied from the evaporator 50 and the pump 10 the energy stored in the absorbent enriched solution at separator unit 20 may be conserved by inclusion of a turbine or the like 62 in process line 16 that connects.