Experimental investigation on thermal and hydraulic performance of microchannels with interlaced configuration

Ling, Weisong, Zhou, Wei, Yu, Wei, Zhou, Fang, Chen, Jinjia and Hui, K. S. ORCID: https://orcid.org/0000-0001-7089-7587 (2018) Experimental investigation on thermal and hydraulic performance of microchannels with interlaced configuration. Energy Conversion and Management, 174. pp. 439-452. ISSN 0196-8904

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In this study, a novel interlaced microchannel with a “cold water-hot water-cold water” counterflow arrangement was designed. The influences of microchannel configurations on the thermal and hydraulic performance were studied by comparing the proposed microchannel configuration with parallel and traditional spiral configurations. The results showed that the effective heat transfer area of the interlaced microchannel was 6.4 and 8.4 times that of the parallel and spiral configurations, respectively. For interlaced microchannels, the maximum temperature difference between the cross sections was 0.07 °C, and the temperature rise along the flow direction was only 6 °C. When the Reynolds number was 492, the Nusselt number of the interlaced microchannels was 2 and 10 times that of the parallel and spiral microchannels, respectively. The heat transfer performance of interlaced microchannels was improved by 83.46% compared with that in the literature. The influence of microchannel configurations on the pressure drop and the entrance length were negligible. The interlaced microchannel exhibited its lowest thermal resistance of 0.015 °C/W and lowest entropy production of 22.6 W/ °C at a Reynolds number of 492. The heat transfer enhancement coefficient of the interlaced microchannel and parallel microchannel were 5 and 2.8 times that of the traditional spiral microchannel, respectively. The maximum heat load of loop heat pipe was enhanced by 4 times with the integration of interlaced microchannel as the condenser.

Item Type: Article
Additional Information: Funding Information: This work was supported by the Natural Science Foundation of Fujian Province of China (No. 2017J06015 ), National Natural Science Foundation of China (Project No 51475397 ). In addition, the supports from the Fundamental Research Funds for Central Universities, Xiamen University, China (Nos. 20720160079 and 2072062009 ). Publisher Copyright: © 2018 Elsevier Ltd
Uncontrolled Keywords: hydraulic performance,interlaced configuration,microchannel,thermal performance,renewable energy, sustainability and the environment,nuclear energy and engineering,fuel technology,energy engineering and power technology,sdg 7 - affordable and clean energy ,/dk/atira/pure/subjectarea/asjc/2100/2105
Faculty \ School: Faculty of Science > School of Mathematics
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Depositing User: LivePure Connector
Date Deposited: 04 Apr 2024 09:30
Last Modified: 08 Apr 2024 01:15
URI: https://ueaeprints.uea.ac.uk/id/eprint/94806
DOI: 10.1016/j.enconman.2018.08.054

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