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

doi: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

Bo Guen Park, Dae Hyun Kim, Jin Taek Chung

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	779-786
Number of pages	8
Journal	Transactions of the Korean Society of Mechanical Engineers, B
Volume	39
Issue number	10
DOIs	https://doi.org/10.3795/KSME-B.2015.39.10.779
Publication status	Published - 2015 Oct

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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10.3795/KSME-B.2015.39.10.779

Cite this

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

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.",

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AB - 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.

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

Abstract

Keywords

ASJC Scopus subject areas

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