摘要
对弹性管束水-水换热器的传热与阻力特性进行了研究。主要分析了换热器在不同工况下的传热系数的变化规律;研究了弹性管束在管外流体和管内流体的共同诱导作用下,管外和管内对流换热的情况;并对管程和壳程的流动阻力损失进行了实验测量,得出了管程和壳程的阻力损失变化的规律,以及换热器管程阻力损失的计算方法。
For the water-water heat exchanger of elastic tube bundles, the characteristics of heat transfer and flow resistances were studied. The heat transfer coefficient of heat exchanger was analyzed under different conditions, When the elastic tube bundles are affected by flow-induced vibration in shell side and axial water flow in tube side, the change of the coefficient of convective heat transfer was studied, How the flow resistances in shell side and in tube side change was also studied by an experiment. A series of formula were given to calculate the flow resistances in tube side.
出处
《实验室研究与探索》
CAS
2007年第11期23-25,41,共4页
Research and Exploration In Laboratory
基金
高等学校博士学科点专项科研基金(20030422066)
关键词
流体诱导振动
强化传热
对流换热系数
阻力特性
flow-induced vibration
heat transfer augment
coefficient of convective heat transfer
resistance characteristics
