AN EXPERIMENTAL INVESTIGATION OF HEAT TRANSFER CAPABILITY AND THERMAL PERFORMANCE OF CLOSED LOOP PULSATING HEAT PIPE WITH A HYDROCARBON AS WORKING FLUID

An experimental investigation of closed loop pulsating heat pipes (CLPHPs) with a hydrocarbon as working fluid determine the effect of heat transfer and overall system performance at a given constrained dimensional heat source. The experimental investigation included start-up time and temperature, the average, minimum, and maximum evaporator temperature during its operation, the overall heat transfer capability, and the overall thermal resistance of the system, also the behaviour of CLPHP under different heat inputs and with the different working fluids. To achieve the goal the experimental setup is fabricated and tested with two different working fluids Acetone and Methanol with the filling ratio of 60 %. This work provides the detailed discussion on the thermal performance of CLPHP with Acetone and Methanol as working fluid and behaviour of CLPHP at different heat inputs.