Method and apparatus for simultaneous heat and mass transfer

Details Method and apparatus for simultaneous heat and mass transfer Method and apparatus for simultaneous heat and mass transfer

1989-05-19

1991-06-04

Davis, Jr., Albert W.

Refrigeration

Atmosphere and sorbent contacting type

62121, 62 94, 62 92, 165115, 261153, F25B 1702, F25D 304

Patent

active

050203355

ABSTRACT:
A method and apparatus for heat and mass transfer is described that is applicable to: concentration, crystallization, purification, fractionation, stripping, absorption, and/or heat exchange for liquid media; drying for solid or gel media; and temperature and humidity modification for gas media. Generally, using a moving gas, such as air at a constant and atmospheric pressure, a continual change in a vapor-liquid equilibrium is created between proximate but continually changing gas and liquid temperatures within energy transferring chambers. Chamber wetting, implemented segmentedly, allows mass transfer into and from the moving gas. A forced temperature differential in each chamber causes heat transfer between chambers by means of thermally conductive partitons. This transfer can allow condensation causing further evaporation in the opposite chamber resulting in a recycling of energy. Concurrent with temperature variances, the segmented wetting can further allow wetting substance concentrations caused by evaporation, selective condensation, or absorption to vary between wetted sectors. A migratory movement connecting these wetted sectors generally provides for development of applicable concentration gradients between the wetted sectors along the chamber length.

REFERENCES:
patent: 4037653 (1977-07-01), Meissner et al.
patent: 4477396 (1984-10-01), Wilkinson
patent: 4594855 (1986-06-01), Gunther

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