Refrigeration – Processes – Circulating external gas
Patent
1991-09-23
1993-05-25
Sollecito, John M.
Refrigeration
Processes
Circulating external gas
62271, 62304, 62311, 62316, 62309, 261153, F25D 1706
Patent
active
052129560
ABSTRACT:
A low energy consumption apparatus and method for treating a gas in which a main gas stream is cooled and heat is transferred by convection to a liquid and to a secondary gas stream across a heat transfer surface. Liquid evaporates into the secondary stream. A total gas stream is subjected to initial sensible cooling along a moisture impervious surface of a heat exchange element. A secondary gas stream is diverted from the total discharge from the initial cooling stage and is directed counterflow to the total stream at the opposite absorbent surface of the heat exchange element to cause heating and humidification of the secondary stream. The remaining cooled stream which is the primary stream is subjected to sorbent treatment in an absorbent media to heat and dehumidify the stream. The primary gas flow is subjected to a final treatment stage similar to the initial heat exchange treatment. Condensate may be removed from the saturated or near-saturated secondary flow. The primary flow may also be subjected to intermediate cooling treatment. The initial and final dry cooling stages preferably include an adiabatic cooling zone. The secondary flow from the initial heat exchanger may be subdivided into two streams, one is dehumidified in the sorbtion device by an auxiliary heater and is used for regeneration of the absorbent media and the other is used to cool the primary air stream.
REFERENCES:
patent: 1970301 (1934-08-01), Frankel
patent: 2926502 (1960-03-01), Munters et al.
Ari-Tec Marketing, Inc.
Nelson Gregory J.
Sollecito John M.
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