Research Article Open Access

Comparisons of Heat Transfer Performance of a Closed-looped Oscillating Heat Pipe and Closed-looped Oscillating Heat Pipe with Check Valves Heat Exchangers

P. Meena1 and S. Rittidech1
  • 1 Mahasarakham University, Thailand

Abstract

This research was to study the comparisons of heat transfer performance of closed-looped oscillating heat pipe and closed-looped oscillating heat pipe with check valves heat exchangers with R134a, Ethanol and water were used as the working fluids. A set of heat pipe heat exchanger (CLOHP and CLOHP/CV) were made of copper tubes in combination of following dimension: 2.03 mm inside diameter: 40 turns, with 20, 10 and 20 cm for evaporator, adiabatic and condenser sections lengths. The working fluid was filled in the tube at the filling ratio of 50%. The evaporator section was given heat by heater while the condenser section was cooled by air. The adiabatic section was properly insulated. In the test operation, it could be concluded as follows. It indicated that the heat transfer performance of closed-looped oscillating heat pipe with check valves heat exchanger better than closed-looped oscillating heat exchanger.

American Journal of Engineering and Applied Sciences
Volume 1 No. 1, 2008, 7-11

DOI: https://doi.org/10.3844/ajeassp.2008.7.11

Submitted On: 12 July 2008 Published On: 31 March 2008

How to Cite: Meena, P. & Rittidech, S. (2008). Comparisons of Heat Transfer Performance of a Closed-looped Oscillating Heat Pipe and Closed-looped Oscillating Heat Pipe with Check Valves Heat Exchangers . American Journal of Engineering and Applied Sciences, 1(1), 7-11. https://doi.org/10.3844/ajeassp.2008.7.11

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Keywords

  • Closed-looped oscillating heat-pipe
  • performance
  • heat exchanger
  • heat transfer