Numerical simulation of the effect of baffle spacing to the effectiveness of a shell and tube heat exchanger

2nd Nommensen International Conference on Technology and Engineering

Zebua, M.A.^1 ; Ambarita, H.^1,2

Department of Mechanical Engineering, Faculty of Engineering, Universitas Sumatera Utara, Jl. Almamater Kampus USU, Medan

20155, Indonesia^1

Sustainable Energy and Bioenergy Centre of Excellent, Universitas Sumatera Utara, Jl. Almamater Kampus USU, Medan

20155, Indonesia^2

关键词: Baffle spacing;    Commercial codes;    Engineering applications;    Heat transfer rate;    Shell and tube heat exchangers;    Temperature effectiveness;    Thermal effectiveness;    Vector velocities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/420/1/012036/pdf
DOI  :  10.1088/1757-899X/420/1/012036

来源: IOP

【 摘 要 】

Heat Exchanger is an important equipment in engineering application. In order to improve the efficiency of a heat exchanger many modifications can be promoted such as baffles. The objective of the present study is to explore the effect of baffle spacing to the effectiveness of a heat exchanger. A U-tube type of shell and tube heat exchanger has been analysed numerically using a commercial code of computational fluid dynamic. The baffle spacing is varied from 40 mm, 50 mm and 60 mm. The temperature distribution, path line and vector velocity are plotted and discussed. The temperature effectiveness and the heat transfer rate of the heat exchanger is then examined. The results show that the smaller baffle spacing results in higher thermal effectiveness.