排灌机械工程学报

作者：HUANG Si,MURAD Tariq,NIU Qifeng,LIN Guangtang,CHEN Jianxun

单位：School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, Guangdong 510641, China; Guangdong Institute of Special Equipment Inspection and Research Zhuhai Branch, Zhuhai, Guangdong 519002, China

关键词：shell-tube heat exchanger,thermal fluid coupling,fouling thermal resistance,heat transfer analysis

A study on heat transfer performance by thermal fluid coupling simulation for the fouling in a shell-tube heat exchanger used in engineering. The coupling simulation was performed in a fluid and solid domains under three different fouling conditions: fouling inside the tube, fouling outside the tube, and fouling inside the shell. The flow field, temperature, and pressure distributions in the heat exchanger were solved numerically to analyze the heat transfer performance parameters, such as thermal resistance. It is found that the pressure drop of the heat exchanger and the thermal resistance of the tube wall increase by nearly 30% and 20%, respectively when the relative fouling thickness reaches 10%. The fouling inside the tube has more impact on the heat transfer performance of the heat exchanger, and the fouling inside the shell has less impact.

来源：2023年第7期

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