Absorption refrigeration and heat pump system with defrost

Details Absorption refrigeration and heat pump system with defrost Absorption refrigeration and heat pump system with defrost

1990-02-09

1990-11-27

Makay, Albert J.

Refrigeration

Disparate apparatus utilized as heat source or absorber

With sorption

62476, 623242, 237 2B, 165 62, F25B 2700

Patent

active

049726790

ABSTRACT:
An integrated three-chamber absorption refrigeration and heat pump system with improved defrost capabilities having a solution pair including a material of unusable fluid stability at higher temperatures when manipulated in an apparatus and system to take advantage of its properties. Disclosed materials of a solution pair for operation as part of the system of this invention are ammonia as the refrigerant and sodium thiocyanate as the absorbent. A heat transfer sub-system is provided, for conveying a working fluid between the components, having multiple switchable valve means, including first, second, and third valve members selectively switchable to convey the working fluid from the cooling mode to the heating mode and vice versa, as well as to the defrost mode.

REFERENCES:
patent: 4464907 (1984-08-01), Mack et al.
patent: 4719767 (1988-01-01), Reid, Jr. et al.

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