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B- A centrifugal fan connected to air duct system, the static losses in the duct is 100 N/m2 and the mean air stream velocity

B- A centrifugal fan connected to air duct system, the static losses in the duct is 100 N/m2 and the mean air stream velocity is 12 m/s, air volume flow rate 2.5 m/s and air density = 1.2 kg/m. Estimate the fan power if the fan efficiency is 0. 85. With necessity validation. 496.52 watt 548.23 watt 661.80 watt

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