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Suitable low Global Warming Potential (GWP) refrigerants for cold climate heat pumps (CCHPs) for residential applications based on simulated performance.

Number: 2112

Author(s) : SHEN B., ALLY M. R., SHARMA V.

Summary

The next generation of heat pumps (HPs), including those intended for cold climates must transition to low- global warming potential (GWP) refrigerants to mitigate climate change. HPs must be designed to alleviate the problems of excessive discharge temperatures, low suction pressure and high-pressure ratio at low ambient conditions and insufficient heating capacity relative to the rated heating capacity. In this paper we recognize those concerns. Low global warming potential (GWP) refrigerants are screened based on the shape of their temperature-entropy (T-S) saturation boundary. Simulations of the two-stage HP with low GWP refrigerants (R32, R454B, R466A, and R452B) to replace R-410A was accomplished using the DOE/ORNL Heat Pump Design Model. Systemic inefficiency was addressed by component-level exergy analysis to refine design options. HPs with low-GWP refrigerants address issues of reducing energy consumption, lowering carbon footprint, and enabling environmental sustainability.

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Pages: 10

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Details

  • Original title: Suitable low Global Warming Potential (GWP) refrigerants for cold climate heat pumps (CCHPs) for residential applications based on simulated performance.
  • Record ID : 30028414
  • Languages: English
  • Subject: Technology
  • Source: 2021 Purdue Conferences. 18th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2021/05
  • Document available for consultation in the library of the IIR headquarters only.

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