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Development of a light commercial packaged cogeneration system. Final report, February 1986-August 1989

Technical Report ·
OSTI ID:6496503
The report documents the development of a small, natural gas powered cogeneration system for light commercial service. The developed system consists of a modified automotive derivative 4.3 liter V-6 engine driving an induction generator at 1800 rpm. The unit produces 30 kW of electrical energy and 2.2 therms of thermal energy in the form of hot water (recovered from lubrication oil, engine jacket, and exhaust gas). Also included on the package is a microprocessor-based control system, an acoustic enclosure, and a complete heat recovery package for up to two thermal loads. Connections for a third load are optional. During the second phase of the three-phase program, a laboratory prototype was fabricated and tested extensively. An electrical efficiency and overall efficiency of 26 percent and 81 percent, respectively, were demonstrated while accumulating 4000 hours of reliable operation. In a separate dynamometer setup, a similarly configured engine successfully completed 5000 hours of full-load testing. Presently, the program is in the final part of Phase III; evaluation of a field test unit. The unit is currently being installed at the California test site. The 30-kW system has been commercialized by Tecogen Inc. as a part of its line of cogeneration systems.
Research Organization:
TECOGEN, Inc., Waltham, MA (USA)
OSTI ID:
6496503
Report Number(s):
PB-90-260548/XAB; TR--6408-160-89; CNN: GRI-5087-293-1484
Country of Publication:
United States
Language:
English

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