Operating data are taken on an air turbine. For a particular ru and P₂ = 1.2 bar. However, the recorded outlet temperatur P2 ld be 219 219 209 1Z Whi-h 2

The enthalpy current of 250 kj enters the tank steadily, and two currents, one kg kg with an intensity of 2 kj and an enthalpy of890 , and the other with an kg intensity of 3 and an enthalpy of 445- kg leave the tank. If it works inside a kg kj mixing tank with a power of 6 kW, what is the amount of heat exchanged with the tank in terms of kilowatts?

A wet cooling tower is to cool 25 kg/s of cooling water from 40 to 30°C, at a locationin which the atmospheric pressure is 96 kPa. Atmospheric air enters the tower at 20 °C and 70 percent relative humidity, and leaves saturated at 35 °C. Neglecting the power input to the fan, determine (a) the volumetric flow rate of air at the cooling tower inlet and (b) the mass flow rate of make-up water required.

What is the maximum work that can be obtained from 2000 J of heat supplied to a steam engine with a high temperature reservoir at 440 °F if the low-temperature reservoir is at 30 °F?