Method for heat and humidity exchange between two air streams and apparatus therefor
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United States of America Patent
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Sep 23, 2003
Grant Date -
Sep 19, 2002
app pub date -
Mar 25, 2002
filing date -
Apr 18, 2000
priority date (Note) -
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Abstract
An apparatus and method for heat and humidity exchange between two air streams, one hot and one humid. A first of the air streams is fed from the interior of a building to the ambient air and a second of the air streams is fed from the ambient air to the interior of the building. The first air stream is cooled and transferred through a heat exchanger, to a heater and a dehumidifier before being exhausted to the ambient air. The second air stream is transferred through the dehumidifier and the heat exchanger, whereupon it is cooled in a cooling device before being transferred into the interior to the building. Before being fed to the dehumidifier, the second air stream is caused to exchange heat and humidity with the first air stream before the latter is fed into the heat exchanger.
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