Abstract
In this study, the effects of the wing-width ratio (0.31, 0.47, and 0.63) on the heat transfer and fluid flow
characteristics of the heat exchanger and the results were compared with those obtained for a plain tube and tube
with longitudinal strip (L-S) insert. The comparison was also done among the thermal performance of plain tube,
tube with longitudinal strip (L-S) insert, T-W tape semi-circular insert.