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http://dx.doi.org/10.3795/KSME-B.2015.39.10.779

A Numerical Study on Improving the Thermal Hydraulic Performance of Printed Circuit Heat Exchanger Using the Supercritical Carbon Dioxide  

Park, Bo Guen (Dept. of Mechanical Engineering, Korea Univ.)
Kim, Dae Hyun (Dept. of Mechanical Engineering, Korea Univ.)
Chung, Jin Taek (Dept. of Mechanical Engineering, Korea Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.39, no.10, 2015 , pp. 779-786 More about this Journal
Abstract
The objective of this study is to propose a new channel shape that improves thermal-hydraulic performance. The existing Zigzag channel has high pressure loss due to flow separation and reverse flow. To improve this disadvantage, partial straight channel is inserted into bended points. Also, the effects of straight channel's length change on heat transfer and pressure loss are analyzed. Thermal-hydraulic performance of the new shape and existing Zigzag channel are quantitatively compared in terms of Goodness Factor. Mass flow rate was changed from $1.41{\times}10^{-4}$ to $2.48{\times}10^{-4}kg/s$. The average volume goodness factor of 1mm straight channel shape was increased by 25% compared to the Zigzag channel.
Keywords
PCHE; Printed Circuit Heat Exchanger; Thermal Hydraulic Performance; Zigzag Channel; Goodness Factor; Super Critical Carbon Dioxide;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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