Study of New CO2 Single-rotor Compressor Applied in Heat Pump System
Author(s): XU Jia, HU Yu-sheng, REN Li-ping, ZHANG Rong-ting
Pages: 30-33
Year: 2016 Issue: 2
Journal: Refrigeration Technology
Keyword: Exceed critical; Thermal physical property; Single-rotor compressor;
Abstract: The thermal physical properties of carbon dioxide (CO2) are analyzed in this paper, such as good fluidity, low surface tension and high heat transfer efficiency. Because of its characteristics of non condensing phase change heat transfer with large temperature slip, CO2 is especially suitable for heat pump system. The key technology of CO2 single-rotor compressor design is studied; a reliability structure for large pressure difference is proposed. Compared with the traditional rotor compressor, the structure leads to little leakage, high coefficient of performance (COP), good reliability and broad market prospects.
Pages: 30-33
Year: 2016 Issue: 2
Journal: Refrigeration Technology
Keyword: Exceed critical; Thermal physical property; Single-rotor compressor;
Abstract: The thermal physical properties of carbon dioxide (CO2) are analyzed in this paper, such as good fluidity, low surface tension and high heat transfer efficiency. Because of its characteristics of non condensing phase change heat transfer with large temperature slip, CO2 is especially suitable for heat pump system. The key technology of CO2 single-rotor compressor design is studied; a reliability structure for large pressure difference is proposed. Compared with the traditional rotor compressor, the structure leads to little leakage, high coefficient of performance (COP), good reliability and broad market prospects.
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