摘要
为分析压缩空气在板翅式换热器中的换热情况,建立了板翅式换热器模型。采用数值模拟的方法,分析不同入口压力和入口速度对压缩空气换热的影响,得到了不同条件下板翅式换热器出口处压缩空气的平均温度,从而计算出单位时间内的换热量,以此为标准来衡量换热效果。搭建了相应的气动实验系统,通过实验测得数据,以验证数值模拟计算结果的可信度。
In order to analyze the heat transfer of compressed air in plate-fin heat exchanger,it establishes the model of the plate-fin heat exchanger,analyzes the influence of different inlet pressure and velocity in heat exchanger based on numerical simulation,obtains the outlet average temperatures of compressed air in different inlet conditions.It calculates the heat exchange capacity per unit time,and measures the heat exchange effect according to previous result.It builds the pneumatic circuit and carries out the test,verifies the results of numerical simulation.
作者
韩飞
滕燕
Han Fei;Teng Yan(School of Mechanical Engineering,Nanjing University ofScience and Technology,Jiangsu Nanjing,210094,China)
出处
《机械设计与制造工程》
2019年第6期80-83,共4页
Machine Design and Manufacturing Engineering
关键词
板翅式换热器
数值模拟
入口压力
入口速度
换热量
plate-fin heat exchanger
numerical simulation
Inlet pressure
Inlet velocity
heat exchange capacity
