饱和湿空气比湿度的计算与比较

介绍了饱和湿空气比湿度的各种计算方法与经验公式,并通过计算进行了详细比较。结果表明在-50~0℃、0~90℃温度区间内,分别采用Hyland-Greenspan公式和CTI公式,其标准差分别为0.0382%、0.0056%,误差最小,计算准确度最高。因此,在冷却塔热力计算中,推荐在-50~0℃、0~90℃的温度范围内分别采用Hyland-Greenspan公式及CTI公式计算饱和湿空气比湿度,以提高冷却塔热力计算的准确性。

The Study of the Auto Disk Brake Air Test

In the paper weakness of air leakage system in our company is discussed firstly. Secondly the improved scheme of air leakage system including auto-control is designed. Then, the tooling with role of location and recovery is developed. At last the application of design optimization is processed. The result reveals that the system of air leakage detection is very valuable and important to manufacture.