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Entropy 2016, 18(1), 15; doi:10.3390/e18010015

Thermal Characteristics of a Primary Surface Heat Exchanger with Corrugated Channels

1
Department of Mechanical Engineering, Korea University, Seoul 02841, Korea
2
Research and Development Division, INNOWILL Corp., Daejeon 34037, Korea
3
Department of Mechanical Engineering, Chungnam National University, Daejeon 305-764, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Kevin H. Knuth
Received: 17 October 2015 / Revised: 18 December 2015 / Accepted: 23 December 2015 / Published: 30 December 2015
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Abstract

This paper presents the heat transfer and pressure drop characteristics of a primary surface heat exchanger (PSHE) with corrugated surfaces. The PSHE was experimentally investigated for a Reynolds number range of 156–921 under various flow conditions on the hot and cold sides. The inlet temperature of the hot side was maintained at 40 °C, while that of the cold side was maintained at 20 °C. A counterflow was used as it has a higher temperature proximity in comparison with a parallel flow. The heat transfer rate and pressure drop were measured for various Reynolds numbers on both the hot and cold sides of the PSHE, with the heat transfer coefficients for both sides computed using a modified Wilson plot method. Based on the results of the experiment, both Nusselt number and friction factor correlations were suggested for a PSHE with corrugated surfaces. View Full-Text
Keywords: primary surface heat exchanger (PSHE); corrugated surfaces; Nusselt number; friction factor; correlation; counterflow; overall heat transfer coefficient (OHTC); heat transfer coefficient (HTC) primary surface heat exchanger (PSHE); corrugated surfaces; Nusselt number; friction factor; correlation; counterflow; overall heat transfer coefficient (OHTC); heat transfer coefficient (HTC)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Seo, J.-W.; Cho, C.; Lee, S.; Choi, Y.-D. Thermal Characteristics of a Primary Surface Heat Exchanger with Corrugated Channels. Entropy 2016, 18, 15.

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