Refrigeration – Processes – Evaporation induced by sorption
Patent
1995-11-13
1997-08-26
Doerrler, William
Refrigeration
Processes
Evaporation induced by sorption
62487, 62494, 62497, F25B 1500, F25B 3700
Patent
active
056600496
ABSTRACT:
A sorber for sorbing a vapor into (absorber) or out of (desorber) a liquid sorbent comprised of a sequential plurality of highly effective and intensified locally cocurrent sorptions, but with non-cocurrent flow of vapor and liquid between the individual sorptions. The structure containing the locally cocurrent upflow is preferably comprised of enhanced heat transfer surface, making the sorption diabatic, further enhancing the intensification, and improving the sorption efficiency. Referring to FIG. 12 , vertical cylinders (70) and (71) form an annular space within which desorption occurs, powered by external heat source (72) and internal heat recuperation (77). The liquid portion of the annulus is divided into multiple compartments by folded rectangular fin (73). The space above fin (73) allows pressure equalization of all compartments. Each compartment is divided by insert (80) into separate vapor-liquid riser channels and a liquid downcomer channel. The sorbent liquid flow sequentially through the compartments via flow ports (74). The same high effectiveness sequential liquid recirculating cocurrent upflow desorption can also be accomplished in a horizontal cylindrical annulus, in plate fin exchangers, and in other geometries.
REFERENCES:
patent: 2240176 (1941-04-01), Coons et al.
patent: 2440583 (1948-04-01), Hainsworth
patent: 3254507 (1966-06-01), Whitlow
patent: 3828576 (1974-08-01), Eidet
patent: 4127993 (1978-12-01), Philips
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