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Development of a Water-Cooled Condenser

  • Isao Tamada
  • Yasuhiro Mizuno
  • Hiroyasu Shimanuki
  • Takaki Okochi
  • Zong Xiumei
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 486)

Abstract

With the tightening of regulations on CO2 emission, the development of electric vehicles (EV/PHV) is accelerating globally. Since electric vehicles have no heat source, a heat pump system using a water-cooled condenser (WCDS) to generate hot water by a hot refrigerant is required for efficient cabin heating and long-distance electric driving. This report describes the key features of our water-cooled condenser, including high performance, and small and low pressure drop.

For high performance, we designed an optimum core matrix with using offset fins for the refrigerant tube. We also showed that the offset fins have a much higher heat transfer coefficient than straight fins for refrigerant condensation.

Keywords

Heat fluid Air conditioner Air conditioning/comfort Heat exchanger Water-cooled condenser 

References

  1. 1.
    Shah MM (1979) Int J Heat Mass Transf 22(4):547–556CrossRefGoogle Scholar
  2. 2.
    The Japan Society of Mechanical Engineers (2009) JSNE data book: heat transfer, 5th edn. The Japan Society of Mechanical Engineering, Tokyo, p 332Google Scholar
  3. 3.
    Wieting AR (1975) Trans ASME Ser C 97:3Google Scholar
  4. 4.
    JP Patent: JP2013191695, Isao TamadaGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Isao Tamada
    • 1
  • Yasuhiro Mizuno
    • 1
  • Hiroyasu Shimanuki
    • 1
  • Takaki Okochi
    • 1
  • Zong Xiumei
    • 1
  1. 1.Denso CorporationKariyaJapan

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