Absorption refrigeration and heat pump system

Refrigeration – Processes – Defrosting or frost inhibiting

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62476, F25B 4100

Patent

active

047221933

ABSTRACT:
This invention relates to a cooling and heating system which operates on the absorption and phase change heat exchange principle. More particularly it relates to a continuous heat actuated, air cooled, double effect generator cycle, absorption system. In further aspects, this invention relates to a system constructed for use with an absorption refrigeration solution pair consisting of a nonvolatile absorbent and a highly volatile refrigerant which is highly soluble in the absorbent. A disclosed refrigerant pair are ammonia as the refrigerant and sodium thiocyanate as the absorbent. An absorption cycle is disclosed using the thermo physical properties of sodium thiocyanate/ammonia, absorption/refrigerant pair. Also disclosed is the construction and configuration of a reverse cycle air cooled double effect generator absorption refrigeration system for use with the sodium thiocyanate/ammonia refrigeration pair, as well as subcompositions, subsystems and components that improve the system efficiency and reduce cost.

REFERENCES:
patent: 3495420 (1970-02-01), Loweth et al.
patent: 3717007 (1973-02-01), Kuhlenschmidt
patent: 3837174 (1974-09-01), Miyagi et al.
patent: 4411140 (1983-10-01), Katsumata et al.
patent: 4437321 (1984-03-01), Asai
patent: 4593531 (1986-06-01), Fujimoto
patent: 4615177 (1986-10-01), Lane et al.

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