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ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT, SWINE WASTE ELECTRIC POWER AND HEAT PRODUCTION--MARTIN MACHINERY INTERNAL COMBUSTION ENGINE
Citation:
SRI INTERNATIONAL. ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT, SWINE WASTE ELECTRIC POWER AND HEAT PRODUCTION--MARTIN MACHINERY INTERNAL COMBUSTION ENGINE. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-04/163, 2004.
Impact/Purpose:
to publish information
Description:
Under EPA’s Environmental Technology Verification program, which provides objective and scientific third party analysis of new technology that can benefit the environment, a combined heat and power system designed by Martin Machinery was evaluated. This paper provides test results for an engine fired with biogas recovered from the anaerobic digestion of swine waste at the Colorado Pork farm in Lamar, Colorado. A six cylinder, 4-stroke naturally aspirated Caterpillar engine drove a Marathon Electric induction generator. No conditioning or compression of the gas was needed, but the low heating value of the biogas restricted the output of the engine somewhat. Still, at times, the unit could produce more output than the farm required. The engine exhaust, at 1100 degrees Fahrenheit, cycled through a heat exchanger which served the digester?s heating loop.