Question

Steam turbine is receiving 1,073 lb/hr of steam, determine the kW output of the turbine if the work done by steam is 2,121 BTU/lb.

Answer 1

A steam turbine is a device that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Because the turbine generates rotary motion, it is particularly suited to be used to drive an electrical generators.

wt = (inlet steam enthalpy – cold reheat enthalpy) + (hot reheat enthalpy – turbine exhaust enthalpy)