Heat transfer and aerodynamics of flat-oval tube bundles with dimples

Authors

  • Вадим Анатолійович Кондратюк National technical university of Ukraine "Kiev Polytechnic Institute" 37 Pobedy ave., Kyiv, Ukraine, 03056, Ukraine https://orcid.org/0000-0001-5035-311X
  • Євген Миколайович Письменний National technical university of Ukraine "Kiev Polytechnic Institute" 37 Pobedy ave., Kyiv, Ukraine, 03056, Ukraine https://orcid.org/0000-0001-6403-6596
  • Олександр Михайлович Терех National technical university of Ukraine "Kiev Polytechnic Institute" 37 Pobedy ave., Kyiv, Ukraine, 03056, Ukraine

DOI:

https://doi.org/10.15587/2313-8416.2015.53141

Keywords:

heat transfer, aerodynamic drag, intensification, flat-oval tube, staggered bundles, dimple, comparison

Abstract

Experimental investigations of heat transfer and aerodynamic drag of staggered bundles of flat-oval tubes with dimples on the lateral surfaces in cross flow in the range of Reynolds numbers 1250<<13500 are performed. Three variants of placing of tubes are considered at the similar minimum value of transversal pith of tubes S1. Comparison of experimental data of heat transfer and aerodynamic drag for tube bundles with dimples and without them are performed

Author Biographies

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

Assistant lecturer

Chair of nuclear power plants and engineering thermophysics

Євген Миколайович Письменний, National technical university of Ukraine "Kiev Polytechnic Institute" 37 Pobedy ave., Kyiv, Ukraine, 03056

Doctor of Technical Sciences, professor

Chair of nuclear power plants and engineering thermophysics

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

Candidate of Technical Sciences, Senior Researcher

Chair of nuclear power plants and engineering thermophysics

 

References

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Published

2015-11-23

Issue

Section

Technical Sciences