汽车水散热器设计软件开发

为了降低散热器的设计成本并提高计算精度,利用PowerBuilder开发了汽车水散热器设计软件,其计算功能包括校核计算、翅片间距优化计算、翅片高度优化计算、管长优化计算及管排数优化计算。对比分析试验表明:计算结果具有较高的精度。计算分析翅片间距、开窗角度、风速及冷却液中乙二醇百分比对散热器性能的影响。研究表明:减小翅片间距及增大风速可提高换热性能;减小开窗角度可降低风侧阻力;增大乙二醇百分比可降低冷却液出口温度。

Development of Design Software for Engine Radiators

In order to reduce investment in engine radiator design and to improve computing precision, a radiator design software was developed using the PowerBuilder. The software consists of performance calculation, as well as calculation for optimizing fin spacing, fin height, tube length and the number of tube rows. By comparison, the results of calculation and experiment were in good agreement. Then the effects of fin spacing, opening angle, wind speed and glycol content in coolant on the performance of a radiator were analyzed. The results indicate that the heat transfer performance of a radiator increase with the increment of the wind speed and with the decrement of the fin spacing; the air resistance reduces with the decrement of the opening angle; the coolant outlet temperature decreases with the increment of the glycol content.