Gas absorber and refrigeration system using same

Details Gas absorber and refrigeration system using same Gas absorber and refrigeration system using same

1992-05-22

1993-08-24

Makay, Albert J.

Refrigeration

Refrigeration producer

Sorbent type

62495, 62483, F25B 1500

Patent

active

052378390

ABSTRACT:
An absorption refrigeration system with ammonia as refrigerant and a salt solution as absorbent operates with an improved margin of safety to crystallization of the salt solution by incorporating an absorber having a precooler and narrow nozzles. The precooler serves to additionally lower the temperature of the salt solution before it is caused to absorb ammonia exothermically, and the nozzles are for injecting the salt solution into ammonia gas flows, while maintaining the solution on the upstream side at relatively high pressure. The flow characteristics of the gas-liquid mixture through absorber tubes change from churn flow to slug flow and finally to bubble flow. A blower is provided for recycling a portion of the ammonia gas back to the absorber for optimizing absorption efficiency. The precooler and the absorber tubes are cooled evaporatively to reduce operating temperatures and system operating costs.

REFERENCES:
patent: 1849685 (1932-03-01), Munters
patent: 3394926 (1968-07-01), Whitlow et al.
patent: 3638452 (1972-02-01), Kruggel
patent: 4127009 (1978-11-01), Phillips

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