A gas undergoes three processes in series that complete a cycle:
Process 1Ă˘â‚¬â€ś2: compression from p1Ă‚Â 10 lbf/in.2 , V1Ă‚Â 4.0 ft3 to p2Ă‚Â 50 lbf/in.2 during which the pressureĂ˘â‚¬â€śvolume relationship is pv constant
Process 2Ă˘â‚¬â€ś3: constant volume to p3 p1
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Process 3Ă˘â‚¬â€ś1: constant pressure
Sketch the cycle on a pĂ˘â‚¬â€śV diagram and determine the net work for the cycle, in Btu.
The driveshaft of a buildingĂ˘â‚¬â„˘s air-handling fan is turned at 300 RPM by a belt running on a 0.3-m-diameter pulley. The net force applied circumferentially by the belt on the pulley is 2000 N. Determine the torque applied by the belt on the pulley, in and the power transmitted, in kW.