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Exergo-economic trade-offs for cold climate heat pumps with low-GWP and natural refrigerants.

Number: 1025

Author(s) : BAHMAN A. M., ZIVIANI D.

Summary

Energy consumption and environmental concerns are two of the main drivers to optimize heat pump systems. Moreover, under extreme winter weather conditions, conventional heat pump systems experience challenges as ambient temperatures fall below 0°C (32°F). Yet, electrification efforts call for cold-climate heat pump systems. In this work, an economized vapor injected heat pump has been optimized at low ambient conditions by using low-GWP working fluids including R-32, R-290, R-410A, R-454A and R-452B. In particular, exergo-economic analyses have been conducted and a multi-objective optimization study based on a nondominated sorting genetic algorithm II (NSGA-II) was used to obtain the Pareto-Frontier curves. The results despite the high investment cost, the system operating with R-290 attained the maximum system COPH, whereas the minimum cost can be obtained using R-32.

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Pages: 8 p.

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Details

  • Original title: Exergo-economic trade-offs for cold climate heat pumps with low-GWP and natural refrigerants.
  • Record ID : 30028792
  • Languages: English
  • Subject: Technology
  • Source: 2nd IIR Conference on HFO Refrigerants and Low GWP Blends
  • Publication date: 2021/06
  • DOI: http://dx.doi.org/10.18462/iir.HFO.2021.1025

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