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http://dx.doi.org/10.9726/kspse.2013.17.4.051

Flow Characteristic with Distance of Inlet Port and Rotating Length of Fluid in the Double Heat Exchanger  

Lee, Seung-Ha (Department of Mechanical Engineering, Korea University)
Cha, Dong-An (Energy System R&D Group, Korea Institute of Industrial Technology)
Kwon, Oh-Kyung (Energy System R&D Group, Korea Institute of Industrial Technology)
Publication Information
Journal of Power System Engineering / v.17, no.4, 2013 , pp. 51-57 More about this Journal
Abstract
The length and position of the inlet port on the double tube heat exchanger is analyzed by CFX ver.11 for studying the characteristic of its flow distribution. When the boundary conditions of the inlet temperature and mass flow rate were each $20^{\circ}C$ and 10 ~ 50 kg/min, 3 models that are based on the distance between the inlet port and the center of the heat exchanger(0, 5.025, 10.05 mm) were analyzed to find the uniformity of the flow rate. Based on the flow rate, 4 lengths (23.723, 33.890, 44.057, 57.274 mm) were used to study the flow distribution according to Reynolds Number. The results show that, when the distance from the inlet to the position of the center of the heat exchanger is 10.05 mm and the length is 57.274 mm, the flow distribution is the most unified.
Keywords
Double tube heat exchanger; Flow uniformity;
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Times Cited By KSCI : 2  (Citation Analysis)
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