A Review on Pulsating Heat Pipe With Different Working Parameters Affecting The Performance

¹ JNTUCEH, & Department of Mechanical Engineering, GRIET, Hyderabad, Telangana, India - 500090
² Department of Mechanical Engineering, JNTU College of Engineering, Hyderabad, Telangana, India - 500072
³ Department of Mechanical Engineering, GRIET, Hyderabad, Telangana, India - 500090

^* Corresponding author: venkatasureshj@gmail.com

Abstract

Every area of engineering is advancing, which is driving up demand for more compact and efficient heat transfer devices. Pulsating heat pipe development results from this (PHP). For managing moderate to high heat fluxes, PHP is a passive two-phase heat transfer device best suited for power electronics and related applications. A tiny diameter tube that is closed end to end to form a loop, is typically used. After being evacuated, the tube is partially filled with a working fluid. The applied heat flux determines the internal flow patterns in a PHP. The thermo-hydrodynamic properties of these devices are highlighted in this work. According to the state of the art, the device has to satisfy at least three thermo-mechanical boundary criteria in order to work as a pulsing heat pipe. Internal tube diameter, applied heat flux, and filling ratio are examples of this. The number of turns and thermo-physical characteristics of the working fluid also have a significant impact on the thermal behaviour. In addition, the report offers a review of previous studies on the use of pulsing heat pipes. Lastly, open questions regarding the process by which PHP operates with various working fluids, validation methods, and applications are explored.