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Investigation of the effects of geometrical parameters on heat transfer from buried finned pipes

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Abstract

Heat transfer from finned pipes buried in the soil has been investigated using experimental, analytical and numerical techniques. The experimental setup consists of a ground source heat pump system and two separate ground heat exchangers. Constant surface temperature approach based on Carslaw and Jaeger’s theory study was used for calculating the heat transfer from the pipes analytically. The problem was modeled and solved using a CFD program numerically. Effects of the fin number, fin length and simulation time on the heat transfer rate have been investigated and compared with bare tube. A modified analytical formula was also proposed for finned pipes in this study.

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Authors and Affiliations

  1. Heat and Thermodynamics Division, Department of Mechanical Engineering, Yildiz Technical University (YTU), Yildiz, Besiktas, Istanbul, 34349, Turkey

    Hakan Demir, Ş. Özgür Atayılmaz, Özden Ağra & Ahmet Selim Dalkılıç

  2. Department of Mechatronics Engineering, Yıldız Technical University, Yildiz, Besiktas, Istanbul, 34349, Turkey

    Ahmet Koyun

Authors
  1. Hakan Demir
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  2. Ahmet Koyun
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  3. Ş. Özgür Atayılmaz
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  4. Özden Ağra
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  5. Ahmet Selim Dalkılıç
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Corresponding authors

Correspondence to Hakan Demir or Ahmet Selim Dalkılıç.

Additional information

Recommended by Associate Editor Jae Dong Chung

Ahmet Selim Dalkılıç is currently an Assistant Professor of Mechanical Engineering at Yildiz Technical University, İstanbul, Turkey. He received his Ph.D. in Mechanical Engineering from the same university. His current research interest is on enhanced heat transfer, convection heat transfer, two-phase flow of new refrigerants and mixture refrigerants and applications in heat exchangers.

Hakan Demir is currently an associate professor of mechanical engineering at Yıldız Technical University, İstanbul, Turkey. He received is Ph.D. in Mechanical Engineering from the same University in 2006. His current research interest is on ground source heat pumps, refrigeration systems, natural convection heat transfer and CFD.

Özden Ağra received her Ph.D. in Mechanical Engineering department of Yıldız Technical University in 2007. Her research interests include heat exchangers and two phase flow. At the present, she is Associate Prof. Dr. in Mechanical Engineering Department in Yıldız Technical University in İstanbul.

Ahmet Koyun is currently a professor of Mechatronic Engineering at Yıldız Technical University, İstanbul, Turkey. He received his Ph.D. in Mechanical Engineering from the same University in 19885. His current research interest is on renewable energy applications and development of testing devices.

Ş. Özgür Atayilmaz is currently an Associate Professor of Mechanical Engineering at Yildiz Technical University, İstanbul, Turkey. He received his Ph.D. in Mechanical Engineering from the same university in 2006. His current research interest is on refrigeration systems, natural convection heat transfer, two-phase flow and mixture refrigerants.

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Demir, H., Koyun, A., Atayılmaz, Ş.Ö. et al. Investigation of the effects of geometrical parameters on heat transfer from buried finned pipes. J Mech Sci Technol 27, 2497–2506 (2013). https://doi.org/10.1007/s12206-013-0637-2

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  • DOI: https://doi.org/10.1007/s12206-013-0637-2

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