抽屉式标准机柜地面通风换热性能的研究

Study of Influence Factors of Ground Ventilation and Heat Exchange Performance of Drawer Standard Chassis

通过抽屉式标准机柜通风换热性能的地面实验研究和数值模拟,分析了在侧进上出和下进上出两种方式下,进风流量、风道通风孔宽度及自然对流对机柜地面通风换热性能的影响。结果表明,在一定范围内增加机柜进气流量和减小通风孔尺寸可改善机柜通风换热性能。此外,对于本文所研究两种进出风口布置方式,在相同的参数状态下,机柜在微重力状态下的通风换热性能优于地面状态或者相当,因此,满足标准机柜地面状态换热要求的设计参数也会满足微重力状态的换热要求。

The ventilation and heat exchange performance of Drawer Standard Chassis in two type inlet and outlet modes were tested and simulated. The influence of inlet flux and width of ventilation hole and nature convection on heat exchange performance of standard chassis was studied. The test results show that, increasing inlet flux and decreasing width of ventilation hole within a scale are main ways to improve the heat exchange performance of standard chassis. Moreover, because heat exchange performance of standard chassis in orbit is better than or same with that in ground at the same states, design parameters which meet heat exchange demand in ground would also satisfy to the requirement of orbit operation.