Heat transfer is analyzed from a different view in mixed convection in this paper. A concept, namely averaged heat transfer resistance coefficient, is used to describe heat transfer performance. For local position, heat transfer defined by generalized Fourier law is determined by fluid conductance and turbulence heat transfer. On the other hand, heat resistance over the cross section is the integer of the local resistance, where the weight, a function of spatial position, can be expressed by product of local heat transfer and temperature. To enhance heat transfer, it is crucial to reduce the heat resistance where the weight is big, namely near the wall. Heat transfer performance under different buoyancy effect is analyzed by the new. The results show that flow structure and heat transfer are closely connected by a straightforward expression. Heat transfer mechanism of enhancement and deterioration under different stages can be perfectly explained, which can predict heat transfer qualitatively.
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18th International Conference on Nuclear Engineering
May 17–21, 2010
Xi’an, China
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-4932-3
PROCEEDINGS PAPER
Heat Transfer Analysis in Mixed Convection
Shan-Fang Huang,
Shan-Fang Huang
Shanghai Jiaotong University, Shanghai, China
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Tai-Yi Ma,
Tai-Yi Ma
China Nuclear Power Engineering Co., Ltd., Zhengzhou, China
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Han-Yang Gu,
Han-Yang Gu
Shanghai Jiaotong University, Shanghai, China
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Yan-Hua Yang,
Yan-Hua Yang
Shanghai Jiaotong University, Shanghai, China
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Xiao Yan
Xiao Yan
Nuclear Power Institute of China, Chengdu, China
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Shan-Fang Huang
Shanghai Jiaotong University, Shanghai, China
Tai-Yi Ma
China Nuclear Power Engineering Co., Ltd., Zhengzhou, China
Han-Yang Gu
Shanghai Jiaotong University, Shanghai, China
Yan-Hua Yang
Shanghai Jiaotong University, Shanghai, China
Xiao Yan
Nuclear Power Institute of China, Chengdu, China
Paper No:
ICONE18-29059, pp. 101-105; 5 pages
Published Online:
April 8, 2011
Citation
Huang, S, Ma, T, Gu, H, Yang, Y, & Yan, X. "Heat Transfer Analysis in Mixed Convection." Proceedings of the 18th International Conference on Nuclear Engineering. 18th International Conference on Nuclear Engineering: Volume 4, Parts A and B. Xi’an, China. May 17–21, 2010. pp. 101-105. ASME. https://doi.org/10.1115/ICONE18-29059
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