Jeon, S.W. Lee, K.J. Moon, D.J. 2024-01-20T16:03:00Z 2024-01-20T16:03:00Z 2021-09-02 2011-11 1226-4881 https://pubs.kist.re.kr/handle/201004/129866 In conventional microchannel heat exchangers, only one kind of fluid (hot or cold) flows in each plate. The channels contain different kinds of fluid depending on the vertical position, but they have the same kind of fluid at all horizontal positions. Therefore, there is a slower heat transfer rate in the horizontal direction than in the vertical direction. We propose a microchannel heat exchanger in which hot and cold fluid flows alternately in each plate to improve the thermal performance. This novel channel array requires a special design for the inlet and outlet. The proposed channel array has a faster heat transfer rate than a conventional channel array. The thermal performance of the novel channel array increases with increasing Reynolds number and Prandtl number, but it decreases as the ratio of solid to fluid thermal conductivity increases. ？ 2011 The Korean Society of Mechanical Engineers. Korean 대한기계학회 새로운 채널 배열을 통한 마이크로채널 열교환기 성능 향상 수치 연구 Numerical study on the performance of a microchannel heat exchanger with a novel channel array Article 10.3795/KSME-B.2011.35.11.1119 1 Transactions of the KSME, B, v.35, no.11, pp.1119 - 1126 Transactions of the KSME, B 35 11 1119 1126 N scopus kci ART001598031 2-s2.0-82355170588 Article Channel arrays Cold fluid Heat transfer rate Microchannel heat exchanger Numerical studies Thermal Performance Vertical direction Vertical positions Flow of fluids Fluids Heat resistance Heat transfer Microchannels Mixed convection Reynolds number Specific heat Thermal conductivity Heat exchangers Channel Array HeaT exchanger Microchannel Thermal resistance