标题:Numerical study of heat transfer characteristics of semi-coke and steam in waste heat recovery steam generator for hydrogen production
作者:Gao, Haibo; Liu, Yongqi; Song, Xiaoyi; Zheng, Bin; Sun, Peng; Lu, Min; Ma, Yuxiang; Gao, Zhaoqiang
通讯作者:Liu, YQ;Liu, Yongqi
作者机构:[Gao, Haibo; Liu, Yongqi; Song, Xiaoyi; Zheng, Bin; Sun, Peng; Lu, Min; Ma, Yuxiang; Gao, Zhaoqiang] Shandong Univ Technol, Sch Transportat & Vehicle 更多
会议名称:1st International Conference of Novel Function Materials (ICNFM)
会议日期:SEP 16-18, 2018
来源:INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
出版年:2019
卷:44
期:36
页码:25160-25168
DOI:10.1016/j.ijhydene.2019.05.155
关键词:Heat transfer; Waste heat recovery; Semi-coke; Steam; Hydrogen; production
摘要:With the steam obtained from the waste heat of high temperature semi-coke, the hydrogen production through gasification method is considered more commercially. The heat transfer of semi-coke bed and steam was investigated using an unsteady convection heat transfer three-dimensional model of semi-coke. The effects of particle size, steam flow and particle bed thickness on heat transfer characteristics were considered. The particle temperature calculated by three-dimensional model was in good agreement with the corresponding particle temperature of experiment. The heat transfer characteristics of single particle, the particle temperature, the amount of heat recovery and the heat flux were investigated. The results show that, in the first 10 min of the heat transfer of semi-coke bed and steam, the bottom particle temperature decreases rapidly, but the top particle temperature is almost unchanged. The heat transfer rate evolution of the single particle in different positions is revealed. The heat transfer rate evolution of the bottom particle is different from that of the middle particle and top particle, and the heat transfer rate evolution of middle particle is similar to that of the top particle. The particle size, the steam flow and the particle bed thickness have great influence on the heat transfer mechanism of semi-coke and steam, and the 7.5 kg/h is considered to be the best steam flow for heat recovery. The intrinsic heat transfer mechanism between semi-coke bed and steam was revealed. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
收录类别:CPCI-S;EI;SCOPUS;SCIE
资源类型:会议论文;期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85067044348&doi=10.1016%2fj.ijhydene.2019.05.155&partnerID=40&md5=0163477e9f9a1e9aa8b23e1c32ef9f07
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