Share

IIR document

Benefits investigation of electronic expansion valve in electric vehicle thermal system as compared to thermal expansion valve with shut-off valve.

Author(s) : ZHANG R., STANKE E. J., ZHANG G., et al.

Type of article: Article, IJR article

Summary

Typical electric vehicle thermal management system with air conditioning and battery cooling is introduced with different refrigerant flow control devices. Electronic expansion valve (EXV) and thermal expansion valve integrated with shut off valve (TXV+SOV) are adopted in such a dual evaporators cooling system as refrigerant flow control valve to investigate the benefits of EXV compared to TXV+SOV by testing. Test result shows the EXV has significant benefits of proper refrigerant distribution with less system fluctuation to avoid the dissatisfaction of customer. With the TXV+SOV control, due to mal-distributed refrigerant flow between air conditioner evaporator and battery chiller, air conditioner blow off temperature variation can reach 8°C which will significantly affect the comfort of passenger cabinet. While with EXV control, air conditioner blow off temperature is very stable. Stable control of EXV also contributes to system efficiency improvement than the TXV+SOV by saving the energy up to 20%.

Available documents

Format PDF

Pages: 404-413

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: Benefits investigation of electronic expansion valve in electric vehicle thermal system as compared to thermal expansion valve with shut-off valve.
  • Record ID : 30025647
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 100
  • Publication date: 2019/04
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2019.02.018

Links


See other articles in this issue (46)
See the source

Indexing