PERFORMANCE INVESTIGATION OF CLOSED LOOP PULSATING HEAT PIPE WITH ACETONE AS WORKING FLUID

The closed-loop pulsating heat pipe is a type of small heat transfer device with a very high thermal conductivity. It was invented to meet the requirement for smaller heat transfer devices.The objective of this work is to study thermal performance of closed loop pulsating heat pipe with acetone as working fluid. Copper has been selected as material for heat pipe due to compatibility of copper with acetone as working fluid. Filling ratio of the working fluid significantly influence on the performance closed loop pulsating heat pipe. From the past studies it was observed that filling ratio of 30-75 % provides the best result hence 60 % filling ratio has been selected for this filing ratio the thermal performance of closed loop pulsating heat pipe with acetone as working fluid is investigated.