A high-pressure steam turbine receives steam from a boiler at condition to be determined. The high-pressure turbine has an isentropic efficiency of 75 percent and produces 1000 kW. The exit condition of the high-pressure turbine is 14 bar, saturated vapor. The exhaust for high-pressure turbine supplies 1000 kg/min for process use and steam to supply a low-pressure steam turbine that produces 800 kW when it exhausts steam at 0.1 bar and has an isentropic efficiency of 60 percent. Draw flow diagram, show the cycle on a T-s diagram and determine 1- The steam flow rate through high pressure turbine. 2- Temperature and pressure at the entrance to the

A high-pressure steam turbine receives steam from a boiler at condition to be determined. The high-pressure turbine has an isentropic efficiency of 75 percent and produces 1000 kW. The exit condition of the high-pressure turbine is 14 bar, saturated vapor. The exhaust for high-pressure turbine supplies 1000 kg/min for process use and steam to supply a low-pressure steam turbine that produces 800 kW when it exhausts steam at 0.1 bar and has an isentropic efficiency of 60 percent. Draw flow diagram, show the cycle on a T-s diagram and determine 1- The steam flow rate through high pressure turbine. 2- Temperature and pressure at the entrance to the

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A high pressure steam turbine receives steam from a boiler under unknown conditions. The isentropic efficiency of the turbine is 75% and it produces 1MW. The high pressure turbine outlet steam is at 1.4 MPa under saturated conditions. The high pressure turbine exhaust supplies 1000kg/min for use in a process, in addition to an unknown flow of steam that follows the path, being supplied to a low pressure turbine that produces 820kW when it releases steam at 10kPa and has a isentropic efficiency of 60%. The steam that was used for the process (out of the high pressure turbine) after being used, returns to the cycle taken by the pump, which also takes the outlet of the condenser and does so at 10kPa as saturated liquid. Consider the efficiency of the pump equal to 90%. Determine: A) the mass flow through the boiler B) the pressure and temperature at the outlet of the boiler C) the thermal efficiency of the cycle
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