Heat transfer of a single drop shaped cylinders in cross flow

Authors

  • Олександр Михайлович Терех National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056, Ukraine https://orcid.org/0000-0002-1320-8594
  • Олександр Володимирович Семеняко National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056, Ukraine https://orcid.org/0000-0001-8334-9424
  • Олександр Ігоревич Руденко National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056, Ukraine https://orcid.org/0000-0002-0658-2668
  • Вадим Анатолійович Кондратюк National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056, Ukraine https://orcid.org/0000-0001-5181-1178

DOI:

https://doi.org/10.15587/1729-4061.2014.20066

Keywords:

cylinder, profile, drop-shaped, plane-oval, oval, circular, flow, heat transfer, intensity, comparison

Abstract

The paper is devoted to the studies of convective heat transfer for practically unstudied cylinders of a figurine drop-shaped form. The experiments have been carried out in a straight-through wind tunnel of a rectangular cross-section in the variation range of the Reynolds numbers from 4000 to 25000. The method of an electric heating of the surface under investigation has been used wherein the conditions of a constant heat flow density have been enabled over the pipe inner wall. During the experiments, the average convective heat transfer coefficients have been determined. The heat transfer level of the "straight"-form drop-shaped pipe is (20-30) % higher than of the "reverse" form. The obtained data have shown that the drop-shaped pipes have a lower heat transfer intensity compared to the pipes of a circular cross-section. The given results can serve as a basis for further studies related to the optimization of geometric dimensions of the pipes for various heat exchange equipment, possessing a high heat and aerodynamic efficiency.

Author Biographies

Олександр Михайлович Терех, National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056

PhD, Senior Researcher

Chair of nuclear power plants and engineering thermophysics

Олександр Володимирович Семеняко, National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056

Assistant

Chair of nuclear power plants and engineering thermophysics

Олександр Ігоревич Руденко, National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056

PhD, associate professor

Chair of economy and enterprise

Вадим Анатолійович Кондратюк, National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056

Junior Researcher

Chair of nuclear power plants and engineering thermophysics

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Published

2014-02-10

How to Cite

Терех, О. М., Семеняко, О. В., Руденко, О. І., & Кондратюк, В. А. (2014). Heat transfer of a single drop shaped cylinders in cross flow. Eastern-European Journal of Enterprise Technologies, 1(8(67), 27–31. https://doi.org/10.15587/1729-4061.2014.20066

Issue

Vol. 1 No. 8(67) (2014): Energy-saving technologies and equipment

Section

Energy-saving technologies and equipment

License

Copyright (c) 2014 Олександр Михайлович Терех, Олександр Володимирович Семеняко, Олександр Ігоревич Руденко, Вадим Анатолійович Кондратюк

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