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A fan can deliver a total pressure of 140 mm of water gage. The boiler requirement is 47,929 m^3/hr of standard air and the

 

A fan can deliver a total pressure of 140 mm of water gage. The boiler requirement is 47,929 m^3/hr of standard air and the mechanical efficiency is 79 %. Use the total head in terms of air. Determine the size of the driving motor in kW Answer in whole number

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