Author/Authors :
Kassim, Muna S. Al-Mustansiriyah University, Baghdad, Iraq , Oleiwi, Ahmed University of Warith Alanbiyaa, Karbala, Iraq , Khudhur, Dhamyaa Saad Al-Mustansiriyah University, Baghdad, Iraq , Habeeb, Laith Jaafer Training and Workshops Center - University of Technology, Bagdad, Iraq
Abstract :
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.
