IIR document

Development of a cold climate heat pump using two-stage compression.

Number: pap. n. 393

Author(s) : SHEN B., RICE C. K., ABDELAZIZ O., et al.


This paper presents a simulation study using the ORNL Heat Pump Design Model to investigate the effectiveness of two-stage economizing cycle for cold climate heat pump applications that uses two variable-speed compressors. The high stage compressor was modelled using a compressor map, while the performance of the low stage compressor was evaluated experimentally using calorimeter testing. A single-stage heat pump system was also modelled as the baseline case. The simulated performance of the two-stage system was compared with the single-stage baseline system. Special considerations for designing a cold climate heat pump were addressed at both the system and component levels.

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Pages: 8 p.


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  • Original title: Development of a cold climate heat pump using two-stage compression.
  • Record ID : 30016334
  • Languages: English
  • Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
  • Publication date: 2015/08/16
  • DOI: http://dx.doi.org/10.18462/iir.icr.2015.0393


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