Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

An update of free-piston Stirling engine heat pump development

Conference · · ASHRAE Trans.; (United States)
OSTI ID:6566384
A Free-Piston Stirling Engine Heat Pump (FPSE/HP) for residential applications has been under development for the past five years. The system consists of a natural gas combustor, free-piston Stirling engine, and a variable-stroke resonant piston refrigerant compressor. The compressor is linked to the engine via a unique hydraulic transmission that provides for both efficient power transfer and hermetic sealing between the engine working fluid (helium) and the compressor refrigerant. This development effort has led to a breadboard heat pump power module, engine/transmission/compressor, that has undergone a comprehensive test program to evaluate the performance of an FPSE/HP and to judge its potential for further development. The results obtained from this testing are presented in this paper.
Research Organization:
Free-Piston Engine Program, Mechanical Technology Inc., Latham, NY
OSTI ID:
6566384
Report Number(s):
CONF-8606125-
Conference Information:
Journal Name: ASHRAE Trans.; (United States) Journal Volume: 92:2B
Country of Publication:
United States
Language:
English