摘要
以一种特定管翅式热交换器的翅片形式为研究对象,提出了一种针对翅片结构的优化换热方法。该方法主要针对翅片侧换热系数和整体传热随翅片结构改变的变化规律,并采用传热系数和压降相结合的评价方法,针对管翅式热交换器的翅片高度、翅片厚度及翅片间距进行优化。经计算得出了热交换器的总传热系数在控制单一变量或多个变量下的最优值范围。
The fin shape of a tube fin heat exchanger is studied,and an optimized heat transfer method for fin structure is proposed. The change lawof the main method for the fin side heat transfer coefficientand the overall heat transfer with fin structure change,and the evaluation method of heat transfer coefficient and pressure drop for the combination of tube fin heat exchanger fin height,fin thickness and fin spacing optimization. The total heat transfer coefficient of the heat exchanger is obtained by calculating the optimum range under the control of a single variable or multiple variables.
出处
《节能》
2017年第11期20-23,共4页
Energy Conservation
基金
北京高等学校高水平人才交叉培养"实培计划"毕业设计(论文)项目资助(项目编号:1754001)
关键词
管翅式热交换器
综合性能
优化设计
烟气余热
finned tube heat exchanger
comprehensive performance
optimum design
flue gas waste heat
