DEVELOPMENT OF COLD CLIMATE HEAT PUMP USING TWO-STAGE COMPRESSION
This paper uses a well-regarded, hardware based heat pump system model to investigate a two-stage economizing cycle for cold climate heat pump applications. The two-stage compression cycle has two variable-speed compressors. The high stage compressor was modelled using a compressor map, and the low stage compressor was experimentally studied using calorimeter testing. A single-stage heat pump system was modelled as the baseline. The system performance predictions are compared between the two-stage and single-stage systems. Special considerations for designing a cold climate heat pump are addressed at both the system and component levels.
- Publication Date:
- OSTI Identifier:
- DOE Contract Number:
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- Resource Relation:
- Conference: 24th IIR International Congress of Refrigeration, Yokohama, Japan, Japan, 20150816, 20150822
- Research Org:
- Oak Ridge National Laboratory (ORNL); Building Technologies Research and Integration Center (BTRIC)
- Sponsoring Org:
- EE USDOE - Office of Energy Efficiency and Renewable Energy (EE)
- Country of Publication:
- United States
- Two-stage compression; Modeling; Cold Climate
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