对凝汽器传热系数公式修正的研究  

Corrections to condenser heat transfer coefficient formulae

作　　者：王庆[1] 王培红[1] 兰立君[1] 

机构地区：[1]东南大学能源与环境学院,江苏南京210096

出　　处：《华东电力》2008年第12期96-99,共4页East China Electric Power

基　　金：高等学校博士学科点专项科研基金(20060286033)

摘　　要：在凝汽器传热系数的计算中,通常采用的是前苏联别尔曼公式,通过实例发现别尔曼公式中凝汽器蒸汽负荷和循环水流量对传热系数的修正不足,造成了别尔曼公式计算结果与实际运行值存在偏差。针对别尔曼公式在循环水流量和蒸汽符合偏离设计值时产生的偏差给出了改进的修正系数,并对原有修正存在偏差给出了理论解释,计算证明改进的修正系数获得了良好的效果。BTH is often used in calculations of the condenser heat transfer coefficient, however, practice showed that there could be deviations between the BTH calculation result and the actual runtime value since BTH＇s correction coefficients to the steam load and the circulating water flow were not acceptably accurate under some new conditions. The improved correction coefficient is proposed, and the former correction deviations in BTH are explained. Calculations prove the improved correction coefficient effective.

关 键 词：传热系数 循环水流量 蒸汽负荷 修正 

分 类 号：TK124[动力工程及工程热物理—工程热物理] TQ051.81[动力工程及工程热物理—热能工程]