A steam turbine is driven by 450 kg/h steam. The steam enters the turbine at 44 atm and 450 oC at a linear velocity of 55 m/s and leaves at a point 4 m below the turbine inlet at 1 atm and at a linear velocity of 300 m/s. The turbine delivers shaft work at a rate of 77 kW and the heat loss from the turbine is estimated to be 12.4 kW. Calculate the specific enthalpy change associated with the process.

A gas turbine power plant with the following specifications: two axial compressor stages, the pressure ratio is 6/1 for each compressor. The inlet and exit angles of both moving and fixed blades are 40° and 20° respectively, the work done factor is 0.82, six stages for each compressor. intercooling between stages. A high pressure turbine is used to drive the compressors, and a low pressure turbine drives the generator. The temperature of the gases at entry to the high pressure turbine is 600°C and the gases are reheated to 700°C after expansion in the first turbine. The exhaust gases leaving the low pressure turbine are passed through a heat exchanger to heat the air leaving the high pressure stage compressor. The air inlet temperature to the unit is 20°C. The isentropic efficiency of each turbine stage is 0.95; the heat exchanger thermal ratio is 0.7. A mechanical loss is 5% for both the generator- turbine shaft and the compressor- turbine shaft. Assume any missed values to Calculate…