Apparatus and method for equalizing hot fluid exit plane plate temperatures in heat exchangers
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United States of America Patent
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May 19, 2015
Grant Date -
Mar 3, 2011
app pub date -
Aug 26, 2009
filing date -
Aug 26, 2009
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Abstract
An apparatus and method for minimizing cold spots on plates of a plate-type fluid-to-fluid heat exchanger averages the plate temperature at a hot-fluid exit plane of the heat exchanger. The heat exchanger matrix is constructed to internally vary the flow patterns of opposing hot and cold fluid streams so that the heat transfer coefficient values of one or both fluid streams, designated as h, are optimized so the hot fluid value is a greater value than that of a cold fluid value. Plate variable flow structures are arranged in a manner that allows higher velocity hot fluid flow and possible lower velocity cold fluid flow in areas where the plate temperatures are coolest and the opposite configuration where plate temperatures are hottest.
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