EXPERIMENTAL RESEARCH ON HEAT TRANSFER IN A COUPLED HEAT EXCHANGER

Abstract

The heat exchanger is a devise used for transferring thermal energy between two or more different temperatures. The widespreadly used heat exchanger can only achieve heat exchange between two substances. In this paper, a coupled heat exchanger is proposed, which includes a finned heat exchanger and a double pipe heat exchanger, for multiple heat exchange simultaneously. An experiment is conducted, showing that the average heating capacity increases more than 35%, and the average heating efficiency increases more than 55%, compared with the ordinary air-source heat pump.

Keywords

Dates

  • Submission Date2013-01-18
  • Revision Date2013-04-26
  • Acceptance Date2013-05-20
  • Online Date2013-12-28

DOI Reference

10.2298/TSCI1305437L

References

  1. Kuppan, T., Heat Exchanger Design Handbook, CRC Press, Boca Raton, Fla., USA, 2000
  2. Qian, S. W., Heat Exchanger Design Handbook, Chemical Industry Press, Beijing, 2002
  3. Tsinghua, U., Annual Report on China Building Energy Efficiency, China Construction Industry Press, Beijing, 2007
  4. Yang, J. C., et al., Experimental Investigation of an Indirect Expansion Solar Assisted Multifunctional Domestic Heat Pump, Journal of University of Science and Technology of China, 37 (2007), 1, pp. 53- 60
  5. Wang, C. et al., Effects of Waffle Height on The Air-Side Performance of Wavy Fin-and-Tube Heat Exchanger, Heat Transfer Engineering, 20 (1999), 3, pp. 45-56
  6. Shah, R. K., Sekulić, D. P., Fundamentals of Heat Exchanger Design, John Wiley & Sons Inc., Hoboken, N. J., USA, 2003
Volume 17, Issue 5, Pages1437 -1441