Share

IIR document

New refrigerant for battery electric vehicles using heat pump.

Number: 1038

Author(s) : NAKAUE T., TSUCHIYA T., GOBO K., YAMADA Y., KOMATSU Y., OHKUBO S., RYDKIN I.

Summary

Heat pumps are becoming a common solution to improve the thermal performance of Battery Electric Vehicles (BEVs) and mitigate driving range loss in winter conditions. However, current air conditioning refrigerant R1234yf presents some limitations as a fluid in heat pump systems due to its low pressure, which limits heating ability at low temperatures. We will discuss a new refrigerant blend with a GWP of less than 1, Refrigerant "D1V", suitable for low temperature ambient conditions. The blend has a boiling point below - 40 °C and therefore potentially eliminates the need for supplementary electric heaters at low ambient conditions. D1V has significantly higher capacity over R1234yf and R134a at both heating and cooling conditions with efficiency (COP) matching that of the current solutions across the entire temperature range. We expect the blend would have a class A2L classification and a glide of 4K in direct expansion systems.

Available documents

Format PDF

Pages: 6

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: New refrigerant for battery electric vehicles using heat pump.
  • Record ID : 30028806
  • 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.2021.1038
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles from the proceedings (52)
See the conference proceedings

Indexing