Abstract
This paper presents the experimental results for the elucidation of the thermal transport performance of fin with built-in self-oscillating heat pipe (OHP) as one of the effective thermal devices. The thin plate fin is made of brass having several turns of small channel. In this experiment, the effects of number of turns and working fluid were investigated. It was found that enhancement of self oscillating phenomenon and heat transport performance was obtained by the increase in the number of turns. Moreover, the performance of OHP was varied with working fluids due to their thermal properties.