15 - Question 11 by Kambiz Ehsani - Thermodynamics - Turbines - 4/27/2018 - Solved

Calculate the hp of a steam turbine with the known inlet exhaust and bleed mass flow rates in pounds per hour.

Solution:

In Turbines with the Bleed the Turbine work is :

Wt = (Hinlet - Hbleed) + (1 - y) Hbleed - (1 - y) Hexhaust

y = bleed ratio = m dot bleed / mdot inlet

Wt = (Hinlet - Hbleed) + (1 - y) (Hbleed - Hexhaust )

Wt will be in Btu/hr to hp multiply by 3.939 E-4  hp / (Btu/hr)