Investigations into air and refrigerant side heat transfer coefficients of finned-tube CO₂ gas coolers

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• 作者：IDewa M.C. Santosa^a ; ^b ; Baboo L. Gowreesunker^a ; Savvas A. Tassou^a ; ^{savvas.tassou@brunel.ac.uk} ; Konstantinos M. Tsamos^a ; Yunting Ge^a
• 关键词：CO2 refrigeration systems ; CO2 gas coolers ; Air side heat transfer coefficient ; Refrigeration side heat transfer coefficient ; Modelling ; Computational Fluid Dynamics (CFD)
• 刊名：International Journal of Heat and Mass Transfer
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：107
• 期：Complete
• 页码：168-180
• 全文大小：4015 K
• 卷排序：107

文摘

Experimental investigations established the performance characteristics of CO2 gas coolers. CFD modelling is able to adequately represent the heat transfer characteristics of gas coolers. A horizontal slit fin can improve gas cooler performance by 7%. Refrigerant side heat transfer coefficient varies significantly along the tubes of the gas cooler. Variation of refrigerant side heat transfer coefficient should be taken into account in gas cooler design and modelling.