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Hot air.

Proe Power Systems, Thousand Oaks, CA, announced in November that it received a Notice of Patent Claims Allowance from the U.S. Patent and Trademark Office for HRPG heat recovery power generator technology. To date, DOE cogeneration requirements have been met by using engine exhaust heat to generate steam (to drive a steam engine for additional power) and/or to heat water. In contrast, Proe Power Systems' "dry" HRPG technology uses air instead of water or steam. An existing internal combustion powerplant can be easily modified by connecting the internal combustion engine exhaust into the HRPG heat exchanger and then coupling the drive shafts of the HRPG engine and the existing internal combustion engine. The linked engines require no additional controls and the internal combustion exhaust heat then drives the HRPG engine to produce 15% to 25% by simply exhausting it into a building directly or through the building's existing hot air ducts.

Circle 103--Proe Power Systems, or connect directly to their website at
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Title Annotation:News From The Green File
Author:Mandel, Richard
Date:Jan 1, 2004
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