초록 ▼

A high-efficiency, enhanced, generator-absorber heat exchange (EnGAX) cycle, particularly useful in gas-fired, air-cooled absorption heat pumps, increases the heat output of the absorber in the temperature overlap range with the generator to equal the heat usable by the generator. This is accomplish

A high-efficiency, enhanced, generator-absorber heat exchange (EnGAX) cycle, particularly useful in gas-fired, air-cooled absorption heat pumps, increases the heat output of the absorber in the temperature overlap range with the generator to equal the heat usable by the generator. This is accomplished by establishing a solution pathway from a portion of the absorber in the temperature overlap region to a portion of the generator in order to increase solution flow in the high temperature regions of the absorber and generator. Further improvements in cycle efficiency are obtainable by increasing the operating pressure of the absorber.

대표청구항 ▼

A process for at least one of heating and cooling, including the steps of: (a) contacting refrigerant vapor with a weak absorbent solution in an absorber unit to produce a rich absorbent solution; (b) heating said rich absorbent solution in a generator unit to produce said refrigerant vapor and said

A process for at least one of heating and cooling, including the steps of: (a) contacting refrigerant vapor with a weak absorbent solution in an absorber unit to produce a rich absorbent solution; (b) heating said rich absorbent solution in a generator unit to produce said refrigerant vapor and said weak absorbent solution; (c) returning said weak absorbent solution from step (b) to step (a); (d) condensing said refrigerant vapor obtained in step (b) to produce a condensate; (e) expanding said condensate thereby producing said refrigerant vapor; (f) returning said refrigerant vapor from step (e) to step (a); (g) transferring heat from a portion of said absorber to a portion of said generator, wherein said absorber portion and said generator portion have overlapping temperature ranges; and (h) increasing the pressure of said refrigerant vapor in at least a portion of said absorber in order to elevate the operating pressure in said portion of said absorber and increase the extent of overlap between temperature ranges of said absorber and said generator.