Задача 18а

Task 18a. The power consumption of the centrifugal fan is 1 kW with a volumetric flow of 3000 m3/h and a wheel rotation speed of 1000 rpm. The fan creates an overpressure of 50 mm of water. Determine the supply, overpressure and power consumption of the fan at n rpm, a) n=1200 rpm; b) n=1300 rpm; c) n=1500 rpm;

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