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Use of oscillating heat pipe technique as extended surface in wire-on-tube heat exchanger for heat transfer enhancement |
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| Authors: | Atipoang Nuntaphan Sanparwat Vithayasai Nat Vorayos Nattanee Vorayos Tanongkiat Kiatsiriroat |
| Affiliation: | 1. Thermal Technology Research Laboratory, Mae Moh Training Center, Electricity Generating Authority of Thailand, Mae Moh, Lampang 52220, Thailand;2. Technology Licensing Office, Chiang Mai University, Chiang Mai 50200, Thailand;3. Department of Mechanical Engineering, Chiang Mai University, Chiang Mai 50200, Thailand |
| Abstract: | This paper presents the performance of a wire-on-tube heat exchanger of which the wire is an oscillating heat pipe. The experiments for this heat exchanger were performed in a wind tunnel by exchanging heat between hot water flowing inside the heat exchanger tubes and air stream flowing across the external surface. R123, methanol and acetone were selected as working fluids of the oscillating heat pipe. The inlet water temperature was varied from 45 to 85 °C while the inlet air temperature was kept constant at 25 °C. |
| Keywords: | Heat transfer enhancement Performance testing Wire-on-tube Oscillating heat pipe Heat exchanger |
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