In this work, a four-turn pulsating heat pipe (PHP) is fabricated and tested experimentally. The novelty of the present PHP is the capability to obtain various thermal performances at a specific heat input by changing the magnetic field. The effects of working fluid (water and ferrofluid), charging ratio (40% and 70%), heat input (35, 45, 55, 65, 75, and 85 W), orientation (horizontal and vertical heat mode), ferrofluid volumetric concentration (2.5% and 7%), and magnetic field on the thermal performance of PHPs are investigated. The results showed that applying the magnetic field on the water-based ferrofluid reduced the thermal resistance of PHP in all orientations. In the presence of a magnetic field, the best thermal performance was achieved at the higher charging ratios (70%) in all orientations.
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Experimental Investigation of a Pulsating Heat Pipe Using Ferrofluid (Magnetic Nanofluid)
Maziar Mohammadi,
Maziar Mohammadi
Center of Excellence in Energy Conversion (CEEC), School of Mechanical Engineering, Sharif University of Technology
, P.O. Box 11155-9567, Tehran, Iran
Search for other works by this author on:
Mohammad Mohammadi,
Mohammad Mohammadi
School of Chemical Engineering, Sharif University of Technology
, P.O. Box 11155-9465, Tehran, Iran
Search for other works by this author on:
M. B. Shafii
e-mail: Behshad@sharif.edu
M. B. Shafii
Center of Excellence in Energy Conversion (CEEC), School of Mechanical Engineering, Sharif University of Technology
, P.O. Box 11155-9567, Tehran, Iran
Search for other works by this author on:
Maziar Mohammadi
Center of Excellence in Energy Conversion (CEEC), School of Mechanical Engineering, Sharif University of Technology
, P.O. Box 11155-9567, Tehran, Iran
Mohammad Mohammadi
School of Chemical Engineering, Sharif University of Technology
, P.O. Box 11155-9465, Tehran, Iran
M. B. Shafii
Center of Excellence in Energy Conversion (CEEC), School of Mechanical Engineering, Sharif University of Technology
, P.O. Box 11155-9567, Tehran, Iran
e-mail: Behshad@sharif.edu
J. Heat Transfer. Jan 2012, 134(1): 014504 (3 pages)
Published Online: November 21, 2011
Article history
Received:
February 1, 2011
Accepted:
July 27, 2011
Online:
November 21, 2011
Published:
November 21, 2011
Citation
Mohammadi, M., Mohammadi, M., and Shafii, M. B. (November 21, 2011). "Experimental Investigation of a Pulsating Heat Pipe Using Ferrofluid (Magnetic Nanofluid)." ASME. J. Heat Transfer. January 2012; 134(1): 014504. https://doi.org/10.1115/1.4004805
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