1. 西北大学化工学院
2. 西安交通大学化学工程与技术学院
3. 西安西骏新材料有限公司
纸质出版:2013
移动端阅览
马进成, 杨福胜, 王玉琪, 等. 金属氢化物热压缩机吸放氢传热传质的对称性研究[J]. 西安交通大学学报, 2013,(9):119-125.
针对金属氢化物热压缩机(MHTC)在实际应用过程中存在的吸放氢非对称性限制
开展了MHTC传热传质对称性的研究和优化。根据局部热平衡模型
以2D圆环剖面为计算区域
对MHTC多管束反应器实施了模拟
并对模拟过程中的参数及结构进行了优化。优化结果表明:以4层管的多管束反应器为基准
改变吸放氢反应条件能改善反应过程的不对称性特征
即吸、放氢压力分别为2、0.05MPa
温度为293、393K
传热系数为1 000 W/(m2·K)时
吸氢反应分率由0.1上升到0.9;放氢反应分率由0.9降至0.1时
所用时间分别为350和360s
温度变化幅度分别为40和43K
显示出明显的对称性。在反应前20s内
放氢过程中平衡压力的变化剧烈
占平衡压力总变化量的50%以上
为反应过程中的高效反应阶段。
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