A numerical study on improving the thermal hydraulic performance of printed circuit heat exchanger using the supercritical carbon dioxide

Bo Guen Park, Dae Hyun Kim, Jin Taek Chung

Research output: Contribution to journalArticle

1 Citation (Scopus)

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 1.41×10-4 to 2.48×10-4 kg/s. The average volume goodness factor of 1mm straight channel shape was increased by 25% compared to the Zigzag channel.

Original languageEnglish
Pages (from-to)779-786
Number of pages8
JournalTransactions of the Korean Society of Mechanical Engineers, B
Volume39
Issue number10
DOIs
Publication statusPublished - 2015 Oct 1

Keywords

  • Goodness factor
  • PCHE
  • Printed circuit heat exchanger
  • Super critical carbon dioxide
  • Thermal hydraulic performance
  • Zigzag channel

ASJC Scopus subject areas

  • Mechanical Engineering

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