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INDIRECT EVAPORATIVE COOLER USING MEMBRANE-CONTAINED LIQUID DESICCANT FOR DEHUMIDIFICATION AND FLOCKED SURFACES TO PROVIDE COOLANT FLOW

United States Patent Application

20130340449
A1
View the Complete Application at the US Patent & Trademark Office
National Renewable Energy Laboratory - Visit the NREL Technology Transfer Website
An apparatus for conditioning an inlet air stream. A first stage is provided with a dehumidifier cooling an air stream input by absorption of water vapor from the input air stream. A second stage is provided with an indirect evaporative cooler to receive a cooled portion of the input air stream and sensibly cool the received portion of the input air stream to a temperature range near the dew point temperature. A first portion of the sensibly cooled air stream is exhausted to a cooled space while a second portion is directed to a wet side of the indirect evaporative cooler and receives heat to sensibly cool the input air stream. A flow channel for the second portion of the sensibly cooled air stream in the indirect evaporative cooler is defined by a surface of a separation wall covered with wicking material acting to wick a stream of liquid coolant.
KOZUBAL, Eric J. (Superior, CO), WOODS, Jason D. (Boulder, CO)
ALLIANCE FOR SUSTAINABLE ENERGY, LLC (Golden CO)
13/ 886,131
May 2, 2013
CONTRACTUAL ORIGIN [0002] The United States Government has rights in this invention under Contract No. DE-AC36-08G028308 between the United States Department of Energy and the Alliance for Sustainable Energy, LLC, the Manager and Operator of the National Renewable Energy Laboratory.