Experimental and Theoretical Analysis of Heat Pipe at Different Orientation

Heat pipe is a heat transfer device that combines the principles of thermal conductivity and phase transition to efficiently manage transfer of heat between two solid interfaces. The main feature of heat pipe is that it can be designed to transport heat between the heart source and the heat sink with very small temperature difference. The factors affecting the performances of heat pipe in various limits such as Viscous limit, Sonic limit, Capillary limit, Boiling limit, Entrainment limit. Enhancement in Performance of heat pipe can be done on the basis of selection of various working fluids. Based on Orientation of pipe, performance can be analyzed and results obtained are compared with horizontal orientation. Another main component is its wick structure .The wick structure and the working fluid in the heat pipe play a very important role in thermal performance of heat pipe. Wick structure is responsible for capillary pumping force and is directly limited to capillary limit. Position of condenser and evaporator i.e. the inclination of heat pipe affects is thermal performance. Heat pipe performance with composite wick structure at different angles of inclination and acetone as working fluid is studied.