焦炭局部换热系数与导热反问题的研究  

Study on Local Heat Exchanger Factor and Inverse Problem of Heat Conduction in Coke

作　　者：张欣欣[1] 司俊龙[1] 王荻楠[1] 刘华飞[1] 吴懋林[1] 徐列[2] 郑文华[2] 

机构地区：[1]北京科技大学,北京100083 [2]鞍山焦化耐火材料设计研究总院,鞍山114002

出　　处：《燃料与化工》2004年第6期8-11,共4页Fuel & Chemical Processes

基　　金：国家经贸委技术创新项目;国家自然科学基金委员会(批准号:50136020)的支持

摘　　要：在固定床干熄炉传热模拟装置中,利用导热反问题原理得到了焦炭床层的局部换热系数。结果表明,局部换热系数和平均换热系数的变化规律相似,增加冷却气体流量有利于提高换热系数,换热系数随焦炭粒度小而增加。In heat transfer simulating device of CDQ chamber with fixed bed, by means of inverse problem principle of heat conduction the local heat exchange factor of coke bed is obtained. The results show that the variation laws of local heat exchange factor and average heat exchange factor are similar, to increase cooling inert gas flow is beneficial to increase heat exchange factor, the heat exchange factor is increased with small coke size.

关 键 词：焦炭 局部换热系数 导热反问题 干熄焦 对流换热系数 

分 类 号：TQ520.1[化学工程—煤化学工程]