场协同原理在强化换热器传热中的应用与分析  

Study on heat transfer enhancement of heat exchanger with field synergy principle

作　　者：李革[1] 张丽[2] 董晓巍[3] 

机构地区：[1]辽宁省水产品加工及综合利用重点开放实验室 [2]大连理工大学 [3]大连水产学院

出　　处：《制冷与空调》2008年第1期30-32,共3页Refrigeration and Air-Conditioning

摘　　要：以提高翅片管式换热器的换热性能为研究对象,根据场协同原理(在相同的速度和温度边界条件下,对流换热的性能取决于流体速度场与热流场协同的程度),将换热器的基管由圆管改为椭圆管来提高换热器的换热性能。计算结果表明,其换热系数提高15%,阻力系数降低18%,对强化换热器的热力性能有一定的参考价值。To improve the heat transfer performance of finned tube heat exchanger, according to the field synergy principle （under the condition of same speed and the temperature boundaries, convective heat transfer is decided by synergy between the fluid speed field and heats field）, utilizes the oval tube instead of the circle one. The calculation results indicate that the heat transfer coefficient is increased by 15 % and the resistance coefficient is decreased by 18 %, it is an energy saving and availability method to enhance heat transfer coefficient of heat exchanger.

关 键 词：翅片管式换热器 场协同原理 传热系数 热力学计算 对流换热 

分 类 号：TK124[动力工程及工程热物理—工程热物理] TK172[动力工程及工程热物理—热能工程]