In this paper, a ferrofluid-based cooling technique is proposed for solar photovoltaic (PV) systems, where ferrofluid flow can be easily altered by the application of an external magnetic field leading to enhanced heat transfer from the hot surface of PV systems. The effect of both constant and alternating magnetic field on ferrofluid flow through a minichannel is explored numerically in the present work. A detailed parametric study is performed to investigate the effect of actuation frequencies of alternating magnetic field (0.5–20 Hz) and Reynolds numbers (Re = 24, 60, and 100) on heat transfer characteristics of ferrofluid. An overall enhancement of 17.41% is observed for heat transfer of ferrofluid in the presence of magnetic field compared to the base case of no magnetic field. For the case of alternating magnetic field, a critical actuation frequency is observed for each Reynolds number above which heat transfer is observed to decrease. The enhancement or decrease in heat transfer of ferrofluid is found to depend on several factors such as actuation frequency of alternating magnetic field, Reynolds numbers of ferrofluid flow, and formation/dispersion of stagnant layers of ferrofluid at the magnet location. Preliminary visualization of ferrofluid flow is also carried out to provide a qualitative insight to the nature of transportation of ferrofluid in the presence of an alternating magnetic field.
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August 2019
Research-Article
Exploring Heat Transfer Characteristics of Ferrofluid in the Presence of Magnetic Field for Cooling of Solar Photovoltaic Systems
Danvendra Singh,
Danvendra Singh
Department of Mechanical Engineering,
Gaya College of Engineering,
Gaya 823003, India
Gaya College of Engineering,
Gaya 823003, India
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Sudip Shyam,
Sudip Shyam
Department of Mechanical Engineering,
IIT Guwahati,
Guwahati 781039, India
IIT Guwahati,
Guwahati 781039, India
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Balkrishna Mehta,
Balkrishna Mehta
Department of Mechanical Engineering,
IIT Guwahati,
Guwahati 781039, India;
Department of Mechanical Engineering,
IIT Bhilai,
Bhilai 492015, India
e-mail: krishnab@iitbhilai.ac.in
IIT Guwahati,
Guwahati 781039, India;
Department of Mechanical Engineering,
IIT Bhilai,
Bhilai 492015, India
e-mail: krishnab@iitbhilai.ac.in
1Corresponding authors.
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Mohammed Asfer,
Mohammed Asfer
Department of Mechanical Engineering,
College of Engineering,
Shaqra University,
Dawadmi, Saudi Arabia
e-mail: asfer786@gmail.com
College of Engineering,
Shaqra University,
Dawadmi, Saudi Arabia
e-mail: asfer786@gmail.com
1Corresponding authors.
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A. S. Alshqirate
A. S. Alshqirate
Department of Mechanical Engineering,
College of Engineering,
Shaqra University,
Dawadmi, Saudi Arabia;
Department of Basic and Applied Sciences,
Al-Balqa Applied University,
Al-Salt, Jordan
College of Engineering,
Shaqra University,
Dawadmi, Saudi Arabia;
Department of Basic and Applied Sciences,
Al-Balqa Applied University,
Al-Salt, Jordan
Search for other works by this author on:
Danvendra Singh
Department of Mechanical Engineering,
Gaya College of Engineering,
Gaya 823003, India
Gaya College of Engineering,
Gaya 823003, India
Sudip Shyam
Department of Mechanical Engineering,
IIT Guwahati,
Guwahati 781039, India
IIT Guwahati,
Guwahati 781039, India
Balkrishna Mehta
Department of Mechanical Engineering,
IIT Guwahati,
Guwahati 781039, India;
Department of Mechanical Engineering,
IIT Bhilai,
Bhilai 492015, India
e-mail: krishnab@iitbhilai.ac.in
IIT Guwahati,
Guwahati 781039, India;
Department of Mechanical Engineering,
IIT Bhilai,
Bhilai 492015, India
e-mail: krishnab@iitbhilai.ac.in
Mohammed Asfer
Department of Mechanical Engineering,
College of Engineering,
Shaqra University,
Dawadmi, Saudi Arabia
e-mail: asfer786@gmail.com
College of Engineering,
Shaqra University,
Dawadmi, Saudi Arabia
e-mail: asfer786@gmail.com
A. S. Alshqirate
Department of Mechanical Engineering,
College of Engineering,
Shaqra University,
Dawadmi, Saudi Arabia;
Department of Basic and Applied Sciences,
Al-Balqa Applied University,
Al-Salt, Jordan
College of Engineering,
Shaqra University,
Dawadmi, Saudi Arabia;
Department of Basic and Applied Sciences,
Al-Balqa Applied University,
Al-Salt, Jordan
1Corresponding authors.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received January 8, 2019; final manuscript received June 29, 2019; published online July 19, 2019. Assoc. Editor: Ali J. Chamkha.
J. Thermal Sci. Eng. Appl. Aug 2019, 11(4): 041017 (10 pages)
Published Online: July 19, 2019
Article history
Received:
January 8, 2019
Revised:
June 29, 2019
Citation
Singh, D., Shyam, S., Mehta, B., Asfer, M., and Alshqirate, A. S. (July 19, 2019). "Exploring Heat Transfer Characteristics of Ferrofluid in the Presence of Magnetic Field for Cooling of Solar Photovoltaic Systems." ASME. J. Thermal Sci. Eng. Appl. August 2019; 11(4): 041017. https://doi.org/10.1115/1.4044188
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