The paper deals with the research of temperature fields in the proximity of heated pipes arranged above each other in a natural air convection. The holographic interferometry method was used for the visualization of temperature fields. The experiments were made with pipes, diameter of 20 mm, length 200 mm, spacing two-dimensional (2D) at surface temperatures of 40 °C, 50 °C, and 60 °C, with the vertical arrangement of the pipes as well as with the horizontal shift of their centers by 1/4D and 1/2D (on a surface temperature of 50 °C). Temperature profiles were determined from the experimentally obtained images of temperature fields, and local parameters of heat transfer were calculated. Under the same marginal and geometric conditions, computational fluid dynamics (CFD) simulations of temperature fields were performed as well, while the results (temperature fields, local and mean parameters of heat transfer) were also calculated for various distances between the pipe centers (1D, 2D, and 3D). From the obtained experimental results and CFD simulation results, it is possible to observe the impact of the arrangement and spacing of pipes on heat transfer parameters. The achieved results imply the change in the spacing of the pipes has a greater impact on heat transfer parameters in the bundle of heated pipes located above each other than a moderate horizontal shift of their centers.
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Research-Article
The Research of Temperature Fields in the Proximity of a Bundle of Heated Pipes Arranged Above Each Other
Jozef Cernecky,
Jozef Cernecky
Professor
Faculty of Environmental and Manufacturing Technology,
Technical University in Zvolen,
Studentska 26,
Zvolen 960 53, Slovakia
e-mail: cernecky@tuzvo.sk
Faculty of Environmental and Manufacturing Technology,
Technical University in Zvolen,
Studentska 26,
Zvolen 960 53, Slovakia
e-mail: cernecky@tuzvo.sk
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Zuzana Brodnianska,
Zuzana Brodnianska
Faculty of Environmental and Manufacturing Technology,
Technical University in Zvolen,
Studentska 26,
Zvolen 960 53, Slovakia
e-mail: zuzana.brodnianska@tuzvo.sk
Technical University in Zvolen,
Studentska 26,
Zvolen 960 53, Slovakia
e-mail: zuzana.brodnianska@tuzvo.sk
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Przemysław Błasiak,
Przemysław Błasiak
Faculty of Mechanical and Power Engineering,
Wroclaw University of Science and Technology,
Wybrzeże Wyspiańskiego 27,
Wrocław 50-370, Poland
e-mail: przemyslaw.blasiak@pwr.edu.pl
Wroclaw University of Science and Technology,
Wybrzeże Wyspiańskiego 27,
Wrocław 50-370, Poland
e-mail: przemyslaw.blasiak@pwr.edu.pl
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Jan Koniar
Jan Koniar
Faculty of Environmental and Manufacturing Technology,
Technical University in Zvolen,
Studentska 26,
Zvolen 960 53, Slovakia
e-mail: koniar@tuzvo.sk
Technical University in Zvolen,
Studentska 26,
Zvolen 960 53, Slovakia
e-mail: koniar@tuzvo.sk
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Jozef Cernecky
Professor
Faculty of Environmental and Manufacturing Technology,
Technical University in Zvolen,
Studentska 26,
Zvolen 960 53, Slovakia
e-mail: cernecky@tuzvo.sk
Faculty of Environmental and Manufacturing Technology,
Technical University in Zvolen,
Studentska 26,
Zvolen 960 53, Slovakia
e-mail: cernecky@tuzvo.sk
Zuzana Brodnianska
Faculty of Environmental and Manufacturing Technology,
Technical University in Zvolen,
Studentska 26,
Zvolen 960 53, Slovakia
e-mail: zuzana.brodnianska@tuzvo.sk
Technical University in Zvolen,
Studentska 26,
Zvolen 960 53, Slovakia
e-mail: zuzana.brodnianska@tuzvo.sk
Przemysław Błasiak
Faculty of Mechanical and Power Engineering,
Wroclaw University of Science and Technology,
Wybrzeże Wyspiańskiego 27,
Wrocław 50-370, Poland
e-mail: przemyslaw.blasiak@pwr.edu.pl
Wroclaw University of Science and Technology,
Wybrzeże Wyspiańskiego 27,
Wrocław 50-370, Poland
e-mail: przemyslaw.blasiak@pwr.edu.pl
Jan Koniar
Faculty of Environmental and Manufacturing Technology,
Technical University in Zvolen,
Studentska 26,
Zvolen 960 53, Slovakia
e-mail: koniar@tuzvo.sk
Technical University in Zvolen,
Studentska 26,
Zvolen 960 53, Slovakia
e-mail: koniar@tuzvo.sk
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received June 3, 2016; final manuscript received February 10, 2017; published online April 11, 2017. Assoc. Editor: Dr. Antonio Barletta.
J. Heat Transfer. Aug 2017, 139(8): 082001 (12 pages)
Published Online: April 11, 2017
Article history
Received:
June 3, 2016
Revised:
February 10, 2017
Citation
Cernecky, J., Brodnianska, Z., Błasiak, P., and Koniar, J. (April 11, 2017). "The Research of Temperature Fields in the Proximity of a Bundle of Heated Pipes Arranged Above Each Other." ASME. J. Heat Transfer. August 2017; 139(8): 082001. https://doi.org/10.1115/1.4036041
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