Diaphragm Stirling engine heat-actuated heat pump development
The objective of this program is to develop and demonstrate the performance of a diaphragm Stirling engine heat-actuated heat pump power module. The power module, consisting of a free displacer, resonant Stirling engine, hydraulic transmission, and resonant Rankine refrigerant (F-22) compressor, embodies several innovative concepts in free-piston Stirling engine heat pump design that will advance the state of the art of this technology. Progress is reported in three areas of the program. First, a compressor/engine matching analysis and a stability analysis have shown that the power module, which is representative of a two-degree-of-freedom resonant system, will operate stably over the full range of heat pump conditions. Second, a compressor design has evolved that has met criteria for performance and cost; and third, tests employing a hydraulic simulator test rig has shown that the transmission losses are less than had been predicted, and that properly designed and fabricated diaphragms can attain long life.
- Research Organization:
- Oak Ridge National Lab., TN (USA); Mechanical Technology, Inc., Latham, NY (USA); Consolidated Natural Gas Research Co., Cleveland, OH (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6274190
- Report Number(s):
- CONF-810672-14; ON: DE81024076
- Resource Relation:
- Conference: DOE heat pump contractors' program integration meeting, McLean, VA, USA, 2 Jun 1981
- Country of Publication:
- United States
- Language:
- English
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