标题:Heat transfer trait simulation of H finned tube in ventilation methane oxidation steam generator for hydrogen production
作者:Sun, Peng; Yang, Huazhen; Zheng, Bin; Liu, Yongqi; Shi, Yueyue; Li, Zongli
通讯作者:Sun, Peng;Sun, P
作者机构:[Sun, Peng; Yang, Huazhen; Zheng, Bin; Liu, Yongqi; Shi, Yueyue] Shandong Univ Technol, Energy Conservat Technol Res Inst, 266 West Xincun St, Zibo 25 更多
会议名称:6th International Conference on Energy, Engineering and Environmental Engineering (ICEEEE)
会议日期:AUG 25-26, 2018
来源:INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
出版年:2019
卷:44
期:11
页码:5564-5572
DOI:10.1016/j.ijhydene.2018.08.186
关键词:Finned tube; Heat extraction; Thermal reverse-flow
摘要:With the steam obtained by the energy released from ventilation air methane oxidation, the hydrogen production through gasification method is considered more commercial. In order to constrain the steam parameter fluctuation, the shunt honeycomb ceramics are adopted to fill between the heat exchange tubes. However, transient heat transfer characteristics of this kind of heat exchanger have not been fully studied. This paper carried out a numerical simulation study on the transient heat transfer characteristics of H finned tube under periodic reverse-flow conditions. Results show that the existence of shunt honeycomb ceramics enhances the effect of radiation. Gas flow direction reversing destructs the original boundary layer, achieving a sudden rise of the convective heat flux in the new upstream. It takes about 12s to form a new relative stable boundary layer. The apparent heat transfer coefficient achieves a maximum of 108.77 W m(-2) K-1 and an average of 99.1 W m(-2) K-1. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
收录类别:CPCI-S;EI;SCIE
资源类型:会议论文;期刊论文
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