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|Title:||3D numerical simulation on fluid flow and heat transfer characteristics in multistage heat exchanger with slit fins||Authors:||Tao, W.Q.
|Issue Date:||Nov-2007||Citation:||Tao, W.Q., Cheng, Y.P., Lee, T.S. (2007-11). 3D numerical simulation on fluid flow and heat transfer characteristics in multistage heat exchanger with slit fins. Heat and Mass Transfer/Waerme- und Stoffuebertragung 44 (1) : 125-136. ScholarBank@NUS Repository. https://doi.org/10.1007/s00231-006-0227-2||Abstract:||In this paper, a numerical investigation is performed for three-stage heat exchangers with plain plate fins and slit fins respectively, with a three-dimensional laminar conjugated model. The tubes are arranged in a staggered way, and heat conduction in fins is considered. In order to save the computer resource and speed up the numerical simulation, the numerical modeling is carried out stage by stage. In order to avoid the large pressure drop penalty in enhancing heat transfer, a slit fin is presented with the strip arrangement of "front coarse and rear dense" along the flow direction. The numerical simulation shows that, compared to the plain plate fin heat exchanger, the increase in the heat transfer in the slit fin heat exchanger is higher than that of the pressure drop, which proves the excellent performance of this slit fin. The fluid flow and heat transfer performance along the stages is also provided. © 2007 Springer-Verlag.||Source Title:||Heat and Mass Transfer/Waerme- und Stoffuebertragung||URI:||http://scholarbank.nus.edu.sg/handle/10635/53864||ISSN:||09477411||DOI:||10.1007/s00231-006-0227-2|
|Appears in Collections:||Staff Publications|
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