Deteriorated turbulent heat transfer (DTHT) of gas up-flow in a circular tube: Heat transfer correlations |
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| Authors: | JI Lee P Hejzlar P Saha MS Kazimi DM McEligot |
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| Affiliation: | 1. Department of Nuclear Science and Engineering, Massachusetts Institute Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA;2. Idaho National Laboratory, Idaho Falls, ID 83415 3885, USA;1. Nuclear Research and Consultancy Group (NRG), 1755ZG Petten, The Netherlands;2. Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, United States;1. Key Laboratory of Thermo-Fluid Science and Engineering of Ministry of Education, School of Energy & Power Engineering, Xi''an Jiaotong University, Xi''an, Shaanxi, 710049, China;2. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China |
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| Abstract: | This paper presents comparisons of recent experimental data, presented in a companion paper, to the existing correlations for heat transfer in various gas flow regimes and development of more accurate new correlations. The existing correlation of Celeta et al. showed the best agreement with the data in the turbulent heat transfer regime, while most of the existing correlations for laminar heat transfer showed unsuccessful predictions. Three new sets of correlations, each covering the mixed convection laminar, normal turbulent and deteriorated turbulent heat transfer (DTHT) regimes for heated gas up-flow, have been developed to agree better with the data in each regime. |
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