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设计一种试验方法对风机在中低空环境条件下的性能进行了研究,结果表明风机转速略有增加,风机压头和功率一定程度降低,最大压头与功率与环境空气密度成正比。试验结果可以为风机选用及浮空器设计提供有效的数据支持。
A test method was designed to study the performance of the fan under mid-low altitude conditions. The results showed that the fan speed increased slightly, the pressure head and power of the fan decreased to a certain degree, and the maximum pressure head and power were proportional to the density of ambient air. The test results provide valid data support for fan selection and aerostat design.