一方向无限长的平行平面间的辐照均匀性  

Irradiance Uniformity between Two Parallel Planes of Infinite Length

作　　者：路义萍[1] 李炳熙[1] 谈和平[1] 韩家德[2] 

机构地区：[1]哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨150001 [2]哈尔滨理工大学机械动力工程学院,黑龙江哈尔滨150080

出　　处：《哈尔滨理工大学学报》2004年第4期111-114,共4页Journal of Harbin University of Science and Technology

基　　金：黑龙江省攻关项目(2550828);黑龙江省教育厅科学研究基金(10541048)

摘　　要：为了得到工业加热过程中常见的两平行平面间的辐照度均匀性以及均匀加热面上的能量利用率,通过公式推导得到辐照均匀系数的解析式,分析了均匀面能量利用率与系统能量损失。结果表明,随板长与板间距比值(L/H)增加,辐照均匀系数先逐渐减小,然后,中心位置附近逐渐增加;当L/H≥8时,辐照均匀系数增加较小,均匀加热面上的能量利用率增加较小。To enhance the irradiance uniformity and improve utilization ratio of radiant energy on the uniform heating area between parallel planes in common industry heating process, a mathematical expression of uniform coefficient of irradiance has been obtained through formula derivation, and radiant energy utilization ratio on area of irradiance uniformly distributed and the ratio of system radiant energy losted is analyzed in detail. The results show that uniform coefficient of irradiance is decreased gradually with the increasing of the length-to-distance(L/H) firstly, then it is increased near the center of plate, while L/H≥8, it is not sensible to increase of L/H, and the value of energy utilization ratio on uniform heating area increases very less. The charts of calculation results of uniform coefficient of irradiance are presented for engineering design.

关 键 词：辐射传热 辐照度 均匀性 平行平面 系统能量损失 能量利用率 红外加热 

分 类 号：O432.1[机械工程—光学工程]