Method and device for transmitting heat between waste water located in a tank and a fluid
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United States of America Patent
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Dec 10, 2013
Grant Date -
Mar 18, 2010
app pub date -
Sep 12, 2007
filing date -
Oct 28, 2006
priority date (Note) -
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Abstract
A method for transferring heat includes flowing a wastewater through a tank and flowing a fluid through a heat exchanger having an outer surface. The method further includes aerating the wastewater to produce a convective flow, contacting the outer surface of the heat exchanger with the convective flow to exchange heat, and cleaning the outer surface of the heat exchanger with the convective flow. A system for transferring heat includes a tank, a heat exchanger with an outer surface disposed in the tank, and a fluid flowing through the heat exchanger. Wastewater located in the tank flows over the outer surface of the heat exchanger, and a diffusion pipe disposed in the tank provides air into the tank to produce a convective flow in the wastewater.
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