05.2020.332.345

Three Dimensional Study of Baffles Effect on Heat Transfer in Shell and Tube Heat Exchanger

Author(s):
Muna S. Kassim†, Ahmed Oleiwi‡, Dhamyaa Saad Khudhur‡†, Laith Jaafer Habeeb‡‡*

Affiliation(s):
†Al-Mustansiriyah University, College of Engineering, Iraq-Baghdad,

‡University of Warith Alanbiyaa, College of Engineering, Iraq-Karbala,

‡†Al-Mustansiriyah University, College of Engineering, Iraq-Baghdad,

‡‡University of Technology, Training and Workshops Center, Bagdad, Iraq

Corresponding Author Email: laithhabeeb1974@gmail.com

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

This work is based designing and performance evaluation of a shell and tube heat exchanger using ANSYS package. Heat exchanger possesses a many usages of different activities. In this research one of the shell and tube heat exchangers is taking the consideration. At the current design process, the water is used both shell and tube sides. The modeling of the heat exchanger without and with baffle plates was carried out to study their effect on the device performance. The work domain is to calculate the distribution of temperature into both of shell and tube side, and to compute the rate of transfer as well as the effectiveness of both configurations. The flow and temperature fields inside the shell and tube are resolved by a FLUENT. It is shown that using baffles can significantly improve the device performance and increase the total heat transfer rate. the heat exchanger effectiveness is increased from 0.68 to 0.76 after using the baffle plates around the tubes. Plate baffle increased a turbulence of a shell fluid and minimized tube-to-tube temperature variances and thermal stresses by reason of the cross flow