Gas and liquid contact apparatus – With external supply or removal of heat – Temperature or humidity sensor
Patent
1992-09-30
1994-11-29
Wayner, William E.
Gas and liquid contact apparatus
With external supply or removal of heat
Temperature or humidity sensor
62315, 165140, 261154, F02M 1500
Patent
active
053687868
ABSTRACT:
Apparatus is provided which controls humidity in a gas. The apparatus employs a porous interface that is preferably a manifolded array of stainless steel tubes through whose porous surface water vapor can pass. One side of the porous interface is in contact with water and the opposing side is in contact with gas whose humidity is being controlled. Water vapor is emitted from the porous surface of the tubing into the gas when the gas is being humidified, and water vapor is removed from the gas through the porous surfaces when the gas is being dehumidified. The temperature of the porous interface relative to the gas temperature determines whether humidification or dehumidification is being carried out. The humidity in the gas is sensed and compared to the set point humidity. The water temperature, and consequently the porous interface temperature, are automatically controlled in response to changes in the gas humidity level above or below the set point. Any deviation from the set point humidity is thus corrected.
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Dinauer William R.
El-Wakil Mohamed M.
Macaulay Philip D.
Otis David R.
Vignali John C.
Wayner William E.
Wisconsin Alumni Research Foundation
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