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试验采用Fans assessment numeration system(FANS)为现场监测系统,利用位置上下移动持续运行的螺旋桨风速计和静压传感器对风机通风性能进行测试。试验共测定3个玻璃温室内3种类型共9个排风风机在不同工况下静压5.0~61.5 Pa范围内的通风量和能源消耗。结果显示,风机防护网的存在及清洁状况对通风量的影响低于5%;塑料百叶窗风机比相同配置的铝制百叶窗风机通风量和能效分别平均高13.1%、15.1%;参数完全相同的风机能效差异最高达12.7%;胶带驱动的风机转速减少16.1%时通风量平均降低38.7%;温室内静压超过30 Pa时风机能耗显著增加。
The fan assessment numeration system (FANS) was used in the experiment as a field monitoring system to test the ventilation performance of the wind turbine with a propeller anemometer and a static pressure sensor which are continuously moving up and down. A total of three glasshouses were tested in a total of three types of three kinds of glass greenhouse exhaust fan under different conditions of static pressure 5.0 ~ 61.5 Pa range of ventilation and energy consumption. The results show that the presence of the fan protection net and the cleaning condition have less than 5% ventilation rate. The ventilation rate and energy efficiency of the plastic louver fan are 13.1% and 15.1% higher than those of the aluminum louver fan with the same configuration respectively. The fan with the same parameters The difference of energy efficiency is up to 12.7%; the ventilation rate of belt driven fan decreases 16% when the ventilation rate decreases 38.7% on average; and when the static pressure in the greenhouse exceeds 30 Pa, the fan energy consumption increases significantly.