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Title: CFD Study on Local Fluid-to-Wall Heat Transfer in Packed Beds and Field Synergy Analysis
Author: Peng Wenping1, 2; Xu Min1; Huai Xiulan1; Liu Zhigang3
Source: JOURNAL OF THERMAL SCIENCE
Issued Date: 2016-04-01
Volume: 25, Issue:2, Pages:161-170
Keyword: Packed bed ; Fluid-to-wall heat transfer ; Field synergy principle ; Computational fluid dynamics ; Heat transfer intensification
DOI: 10.1007/s11630-016-0847-x
DOC Type: Article
English Abstract: To reach the target of smaller pressure drop and better heat transfer performance, packed beds with small tube-to-particle diameter ratio (D/d(p)<10) have now been considered in many areas. Fluid-to-wall heat transfer coefficient is an important factor determining the performance of this type of beds. In this work, local fluid-to-wall heat transfer characteristic in packed beds was studied by Computational Fluid Dynamics (CFD) at different Reynolds number for D/d(p)=1.5, 3.0 and 5.6. The results show that the fluid-to-wall heat transfer coefficient is oscillating along the bed with small tube-to-particle diameter ratio. Moreover, this phenomenon was explained by field synergy principle in detail. Two arrangement structures of particles in packed beds were recommended based on the synergy characteristic between flow and temperature fields. This study provides a new local understanding of fluid-to-wall heat transfer in packed beds with small tube-to-particle diameter ratio.
WOS Headings: Science & Technology ; Physical Sciences ; Technology
WOS Subject: Thermodynamics ; Engineering, Mechanical
WOS Subject Extended: Thermodynamics ; Engineering
WOS Keyword Plus: TRANSFER PARAMETERS ; FIXED-BED ; PRESSURE-DROP ; FLOW ; SIMULATIONS ; DYNAMICS ; MODEL
Indexed Type: SCI
Funder: National Natural Science Foundation of China(51276181 ; National Basic Research Program of China(2011CB 710705) ; 51476173)
Language: 英语
WOS ID: WOS:000372382600008
Citation statistics:
Content Type: 期刊论文
URI: http://ir.etp.ac.cn/handle/311046/112445
Appears in Collections:中国科学院工程热物理所(论文库)_期刊论文(SCI)

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description.institution: 1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Shandong Acad Sci, Energy Res Inst, Jinan 250014, Peoples R China
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