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Performance comparison of a lab and industrial scale propane-butane cascade heat pump.

Number: 1208

Author(s) : BLESS M., HOLMES T., MOEN O. M., NEKSÅ P., SCHLEMMINGER C.

Summary

This paper presents a performance analysis of a lab-scale propane-butane cascade heat pump with a nominal heating capacity of 20 kWth at varying evaporation temperatures. Experimental data from the laboratory is compared with operational data from a scaled-up industrial pilot plant (300 kWth) using the same technical concept. The laboratory data successfully extends the operational range of the heat pump to an evaporation temperature of -15°C, achieving a maximum temperature lift of 124 K. The industrial plant shows higher combined COPs, reaching up to 3.7, and generally higher compressor efficiencies. This improved performance is likely due to multiple factors, although limited data from the industrial plant prevents a definitive conclusion. The study suggests that this heat pump technology is suitable for industrial applications requiring a wide range of temperature levels and lifts, particularly for simultaneous heating and cooling down to -15°C.

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Pages: 12 p.

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Details

  • Original title: Performance comparison of a lab and industrial scale propane-butane cascade heat pump.
  • Record ID : 30032722
  • Languages: English
  • Source: 16th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2024). Proceedings. University of Maryland, College Park, Maryland, USA, August 11-14 2024
  • Publication date: 2024/08
  • DOI: http://dx.doi.org/10.18462/iir.gl2024.1208

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