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ISBN: 978-1-56700-537-0

ISBN Online: 978-1-56700-538-7

ISSN Online: 2377-424X

International Heat Transfer Conference 17
August, 14-18, 2023, Cape Town, South Africa
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HEAT TRANSFER PERFORMANCE OF FIN-AND-TUBE HEAT EXCHANGERS COATED WITH CARBON NANOTUBES UNDER VARIOUS COATING CONDITIONS

Get access (open in a dialog) DOI: 10.1615/IHTC17.190-100
5 pages
Changho Han
Department of Mechanical Engineering, Korea University Anam-Dong, Sungbuk-Ku, Seoul, 136-713, Republic of Korea
Sewon Lee
Department of Mechanical Engineering, Korea University Anam-Dong, Sungbuk-Ku, Seoul, 136-713, Republic of Korea
Jinyoung Kim
Department of Mechanical Engineering, Korea University Anam-Dong, Sungbuk-Ku, Seoul, 136-713, Republic of Korea
Minwoo Lee
Department of Mechanical Engineering, Korea University Anam-Dong, Sungbuk-Ku, Seoul, 136-713, Republic of Korea
Yongchan Kim
Department of Mechanical Engineering, Korea University Anam-Dong, Sungbuk-Ku, Seoul, 136-713, Republic of Korea

Resumo

This study investigates the heat transfer performances of a fin-and-tube heat exchanger coated with carbon nanotubes (CNTs) according to the coating concentration. The heat transfer and the pressure loss of the CNTs coated heat exchanger are investigated at various CNT concentrations. The heat transfer performance increases owing to the enlarged surface area and the increased vortex effect as the concentration increases. The thermal-hydraulic performance of the CNTs heat exchanger with high coating concentration is higher than that of the CNTs heat exchanger with low coating concentration.