10.35 An air compressor with a compression ratio of 7 is designed to take 8.9 kg/s air at 1 atmosphere and 20 C. The design point speed, power requirement, and efficiency are 600 rpm, 5.6 MW, and 80 percent, respectively. A 1:5-scale model of the prototype is built to determine operability for the prototype. Determine the mass flow and power requirement for operation of the model at 80 percent efficiency for air at the same conditions.