Parametric Effects of a Heat Transfer System using Supercritical Carbon Dioxide as Working Fluid

Lei Wang, Yu Cheng Pan, Jin Der Lee*, Shao Wen Chen, Ben Ran Fu, Chin Pan

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

This study experimentally explores the parametric effects on the heat transfer efficiency and pressure drop of supercritical CO2 tested in a horizontal circular heating tube having an inner diameter of 1.0 mm and a length of 170 mm. The experimental results illustrate that the working condition with a longer region after the pseudocritical point will generally deteriorate the heat transfer in the tube. The parametric effect of mass flux can improve the heat transfer efficiency, while the parametric effects of system pressure and inlet fluid temperature can reduce the heat transfer efficiency. The effect of heat flux on the heat transfer efficiency would depend on the outlet flow condition. The optimal heat flux with a highest heat transfer efficiency of about 91.38% occurs in the flow state at tube outlet around the pseudocritical point. Moreover, the measured pressure drops are in the order of several kPa, which could neglect their effects on the local flow properties. The increase of heat flux, inlet fluid temperature and mass flux all tend to enlarge the pressure drop of the heating tube, while the increase of system pressure will lower the tube pressure drop.

原文English
主出版物標題Proceedings - 2024 IEEE 6th Global Power, Energy and Communication Conference, GPECOM 2024
發行者Institute of Electrical and Electronics Engineers Inc.
頁面294-299
頁數6
ISBN(電子)9798350351088
DOIs
出版狀態Published - 2024
事件6th IEEE Global Power, Energy and Communication Conference, GPECOM 2024 - Budapest, 匈牙利
持續時間: 4 6月 20247 6月 2024

出版系列

名字Proceedings - 2024 IEEE 6th Global Power, Energy and Communication Conference, GPECOM 2024

Conference

Conference6th IEEE Global Power, Energy and Communication Conference, GPECOM 2024
國家/地區匈牙利
城市Budapest
期間4/06/247/06/24

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