سال انتشار: ۱۳۸۸

محل انتشار: ششمین کنگره بین المللی مهندسی شیمی

تعداد صفحات: ۵

نویسنده(ها):

M shahoseini – CFD Research Center, Chemical Engineering Department, Razi University, Kermanshah, Iran
M Rahimi – CFD Research Center, Chemical Engineering Department, Razi University, Kermanshah, Iran

چکیده:

This paper presents an investigation of the effect of jagged twisted -tape (JTT) insert with 90o rotation on heat transfer behaviors in a constant heat-fluxed tube. In the experiments, the jagged twisted -tape (JTT) was inserted into the entire test tube with a constant twist ratio in order to generate a continuous swirling airflow. The measurements were carried out at laminar condition. The experimental data of the jagged twisted -tape (JTT) inserted tube are compared with those of the plain tube without insert. The results show that the use of the JTT leads to higher heat transfer rate than that of the tube without insert tape with cost of more pressure drop.