Experimental and CFD investigation of overall heat transfer coefficient of finned tube CO2 gas coolers

被引：8

作者：

Santosa, IDewa M. C. ^{[1
]}

Tsamos, Konstantinos M. ^{[2
]}

Gowreesunker, Baboo L. ^{[2
]}

Tassou, Savvas A. ^{[2
]}

机构：

[1] Bali State Polytech, Mech Engn Dept, Badung 80361, Bali, Indonesia

[2] Brunel Univ London, RCUK Ctr Sustainable Energy Use Food Chains CSEF, Inst Energy Futures, Uxbridge UB8 3PH, Middx, England

来源：

PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON SUSTAINABLE ENERGY AND RESOURCE USE IN FOOD CHAINS INCLUDING WORKSHOP ON ENERGY RECOVERY CONVERSION AND MANAGEMENT;ICSEF 2018 | 2019年 / 161卷

关键词：

CO2 refrigeration system; finned tube heat exchanger; gas cooler; overall heat transfer coefficient (U-LMTD); CFD; FLUID-FLOW; PERFORMANCE; PREDICTION; SIMULATION;

D O I：

10.1016/j.egypro.2019.02.096

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The overall heat transfer coefficient of two CO2 gas coolers was investigated through experiment and Computational Fluid Dynamics (CFD). The CFD modelling provided prediction accuracy for the overall heat transfer coefficient with a maximum error of 9% compared to the CFD predictions. Comparing the two gas cooler designs, and from the experimental and modelling results it has been shown that the performance of the gas cooler can be improved by up to 20% through optimization of the circuit design of the gas cooler. A horizontal slit between the 1st and 2nd row of tubes of the gas cooler can increase the overall heat transfer coefficient by 8% compared with the a fin without the slit. (C) 2019 The Authors. Published by Elsevier Ltd.

引用

页码：300 / 308

页数：9

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