Answer to Question #302343 in Mechanical Engineering for Mithu

Question

01)  Steam enters an adiabatic turbine at 8MPa and 500⁰C with a mass flow rate 3kg/s and leaves at 30kPa. The isentropic efficiency of the turbine is 0.90. neglecting the kinetic energy of the steam, determine

a)     The temperature at the turbine exit

b)     The power output of the turbine

Answer 1

The isentropic efficiency is the ratio of actual power to the isentropic power, which is the power produced by the same turbine if it had an isentropic efficiency of 100%.

Turbine Inlet Temperature (TIT) is the temperature of the combustion chamber exhaust gases as they enter the turbine unit. The gas temperature is measured by a number of thermocouples mounted in the exhaust stream and is presented on a flight deck gauge in either degrees Fahrenheit or degrees Celcius