Lawrence C Howe

US Patent:

55751563, Nov 19, 1996

Filed:

Feb 21, 1995

Appl. No.:

8/391190

Inventors:

Lawrence A. Howe - Bowie MD

International Classification:

F25B 1500
F25B 1506

US Classification:

62101

Abstract:

A process and apparatus for absorption heat pumping include supplying heat to a first generator, desorbing vapor from a solution of absorbent and refrigerant in the first generator; in a first absorber, partially absorbing into an absorbent solution the vapor desorbed in the first generator to produce a mixture of vapor and liquid; further absorbing the vapor from the mixture in a second absorber, thereby producing a strong solution and evolving a heat of absorption; vaporizing some of the strong solution by reducing the ambient pressure, thereby extracting heat from a load, supplying absorbent vapor and liquid from the second generator to a third generator to produce more vapor, the third generator receiving the heat of absorption evolved by the second absorber, and leaving a remaining liquid that is pumped to the first absorber; supplying vapor from the third generator to a third absorber in which the vapor is absorbed into an absorbent solution, pumping absorbent solution from the third absorber to the first generator; and supplying absorbent liquid from the first generator to the third absorber.