Effect of Diameter and Filling Ratio on Performance of Closed Pulsating Heat Pipe
Babu E R and G V Gnanendra Reddy

Abstract: Pulsating heat pipe is an effective method of heat transfer through passive two phase mechanism. In the present research work, experimental studies were performed on pulsating heat pipe made up of copper tube having inner diameters of 1, 1.5, 2 and 2.5 mm respectively. The pulsating heat pipe is charged with acetone as working fluid with different filling ratios of 50%, 60%, 70%, 80%, and 90% of its volume. The evaporator zone is electrically heated by means of mica heater with a range of 20 to 80W and condenser section is cooled by means of constant flow cooling water. The effect of filling ratio and tube diameter on thermal performance of closed loop pulsating heat pipe was investigated and the results shows that, for 2 mm and 1.5 mm inner diameter gives better performance compared to other tube diameters. The thermal resistance obtained have a lower value of 0.40 0K/W and 0.45 0K/W for  2 mm and 1.5 mm diameter  respectively. It is also observed that the  operation of pulsating heat pipe enhances at a filling ratio of 60% for all the tube diameters considered.


Improving the Performance of Flat Plate Solar Air Collector by Using Artificial Roughness (Pin Fins and Circular Ribs)
Mohammed G. Albayati

Latest Articles

Journal of Mechanical Engineering and Applied Mechanics

Aims and Scope: The Journal of Mechanical Engineering and Applied Mechanics is a quarterly peer–reviewed journal which publishes original and review papers related to the broad fields of Mechanical Engineering and Applied Mechanics. Topics of interest include but are not limited to: solid and fluid mechanics, biomechanics, quantum and molecular dynamics, mechanics of materials, heat transfer, hydraulics, elasticity, acoustics, and nano-mechanics. Computer methods, simulation, and numerical analysis of mechanical structures are also welcome.

Potential authors should submit a full manuscript via email to: submission@unitedscholars.net as a Microsoft Word and PDF attachment. 

Prior to submission of your manuscript, please refer to the Authors Guidelines.

Click here to go back to the list of Our Journals.

Editorial Board

Dr. Alex Stameroff

Keysight Technologies (USA)

Dr. Don Estriech
California State University, Sonoma (USA) 

Dr. Kathleen Melde

University of Arizona (USA)

Dr. Dimitris Anagnostou

South Dakota School of Mines and Technology (USA)

Dr. Yue Li  
 University of Pennsylvania (USA)

Dr. Haider Khaleel

California State University, Sonoma (USA)