A steam turbine is used to drive an air compressor while delivering a net power to an electric generator. Steam enters the turbine at 12 MPa and 480 oC at a rate of 25 kg/s and exits at 10 kPa. Air enters the compressor at 100 kPa and 300 K at a rate of 10 kg/s and exits at 1 MPa. The isentropic efficiencies of the turbine and the compressor are 90% and 85% respectively. Calculate: (a) the net power delivered to the electric generator, and (b) the rate of entropy generation during this process.

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k