摘要
换热器的最优设计，应使传热面积投资费用达到最低。对数平均温度差（ Ｌ Ｍ Ｔ Ｄ）的计算直接影响到面积指标。对有关文献中已提出的近似计算方法进行了讨论，指出 Ｃｈｅｎ Ｊ Ｊ Ｊ提出的近似方程最适合于应用在换热器的优化设计中。
In the optimum design of heat exchanger, it must be considered to the minimum area cost. The calculation of logarithmic mean tempreature difference directly influences on the area target. The proposed approximate equations of logarithmic mean temperature difference in the literatures are discussed, it is pointed out that Chen J J J's approximate equation is suitable to the optimum design of heat exchanger.
出处
《石油化工设备》
CAS
1999年第5期13-15,共3页
Petro-Chemical Equipment
关键词
换热器
温度差
传热面积
近似方程
对数平均温度
heat exchanger
temperature difference
heat transfer area
approximate equation
