Ventilator system and method
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United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Jun 15, 2007
filing date -
Nov 9, 1998
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Desiccants or refrigeration can be used for dehumidification, in combination with heat exchangers for energy recovery. Plural heat exchangers can be connected to carry fresh air in series and exhaust air in parallel to increase energy recovery. In one embodiment, the fan of a central air conditioning system is used as the air handler for the heat exchanger by connecting the exhaust conduit of the heat exchanger to the positive pressure side of the fan and extracting a minor fraction of the air for use as exhaust air, and similarly adding fresh air to the negative pressure side of the fan to form a minor fraction of the return air to the central system. In another embodiment, evaporative cooling is used to cool the exhaust air before passing through the heat exchanger.
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