Heat transfer characterization of plate fin-tube heat exchangers |
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Institution: | 1. Korea University, Department of Chemical and Biological Engineering, Anam-dong 5-Ga, Seoungbuk-gu, Seoul 02841, Republic of Korea;2. Imperial College of London, Department of Chemical Engineering, South Kensington London SW7 2AZ, London, UK |
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Abstract: | The effects upon the performance of plate fin-tube cross flow heat exchangers due to outer surface geometry are considered. The finning parameter varying through 11 to 23, a total of ten geometrically distinct configurations were tested over a Reynolds number range from 100 to 30,000. The tube outside diameter with the collar thickness defines the characteristic dimension. The convective heat transfer coefficients are presented as plots of Colburn j-factor versus Reynolds number and compare well with previous studies. Typical data spread being ±10 percent range, the j-factor, the Reynolds number, and the finning parameter are correlated. |
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