Experimental investigation of fluid flow and heat transfer in a single-phase liquid flow micro-heat exchanger |
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| Authors: | N García-Hernando A Acosta-Iborra U Ruiz-Rivas M Izquierdo |
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| Affiliation: | 1. Engineering Research Center of Fujian University for Marine Intelligent Ship Equipment, Minjiang University, Fuzhou 350108, China;2. School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, NSW 2522, Australia;3. Department of Electrical Engineering, College of Engineering, King Saud University, P.O. Box. 800, Riyadh 11421, Saudi Arabia;4. Department of Electrical Engineering, Faculty of Energy Engineering, Aswan University, Aswan 81528, Egypt;5. Department of Automotive and Marine Engineering Technology, College of Technological Studies, The Public Authority for Applied Education and Training, Kuwait;6. Sustainable Management of Natural Resources and Environment Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam;7. School of Mechanical Engineering, The University of Adelaide, Australia |
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| Abstract: | This work presents an experimental analysis of the hydrodynamic and thermal performance of micro-heat exchangers. Two micro-heat exchangers, characterized by microchannels of 100 × 100 and 200 × 200 μm square cross-sections, were designed for that purpose. The fluid used was deionized water and there was no phase change along the fluid circuit. The fluid pressure drop along the heat exchanger and the heat transfer were measured and corrections were made to isolate the contribution of the microchannels. The results were compared with the predictions of the classical viscous flow and heat transfer theory. The main conclusions show that the experimental results fit well with these theories. No effects of heat transfer enhancement or pressure drop increase were observed as a consequence of the small scale of the microchannels. |
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