Freewatt Micro-CHP Monitoring
CDH Energy Corp.
Web Address: http://cdhenrgy.user.openhosting.com/freewatt/freewatt.py
Syracuse University as part of the Syracuse Center of Excellence
(SyracuseCoE) has installed a Freewatt micro-CHP system at a home on the
Near Westside of Syracuse. The purpose of this field test is to
measure and confirm the energy and environmental performance of this innovative
system. This residential-scale combined heat and power (CHP) system has been developed by Climate Energy.
The system includes a natural gas-driven engine generator that provides about 1 kW of electric power for the home. Waste heat from the engine is used to provide space heating for the home. The system combines a Honda engine generator and a conventional gas furnace for backup heating. The furnace includes a hot water coil in order to use heat from the engine jacket to provide space heating.
A Monitoring Plan summarizes the instrumentation and systems that have been installed and provides the rationale for the test approach.
The Freewatt system should provide electricity and capture waste heat from the generator to provide a efficient way to power and heat a home.
CDH found the cost savings from the Freewatt system relative to a conventional 93% efficient, two stage gas furnace are about $210 per year. One reason for the relatively low savings is the modest electrical efficiency of the unit. The measured elecrical efficiency of the Freewatt is about 22% based on higher heating values (HHV).
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