摘要
天然气加热炉作为一种特殊的炉型形式,是天然气应用系统中不可缺少的设备.针对天然气加热炉的结构,其冷源和热源在筒体内均呈偏心布置.使用双极坐标系对圆筒体内加热元件偏心布置时的自然对流换热进行了研究和分析.结果表明,加热元件下偏心布置时,在筒体内的流动和传热状况最好.
As a special type of heater,natural gas heater is indispensable equipment in natural gas application system. According to the structure of natural gas heater, its heating surface and cooling surface are all eccentrically-oriented. The mathematic analysis of natural convection in eccentric cylinder was conducted, the medium flow and temperature field were numerically simulated in the bipolar coordinate system. The result indicates that the flow and heat transfer would perform the best when the heating surface is in the lower half of the cylinder.
出处
《上海理工大学学报》
CAS
北大核心
2009年第3期251-254,共4页
Journal of University of Shanghai For Science and Technology
基金
上海市重点学科建设资助项目(P1401)
上海市科委重大科技资助项目(043012013)
关键词
天然气加热炉
偏心布置
自然对流
双极坐标系
natural gas heater
eccentrically-oriented collocation
natural convection
bipolar coordinate
