Solve the Problem. A power plant operates on a regenerative vapor power cycle with one open feedwater heater. Steam enters the first turbine stage at 11 MPa, 600 ° C and expands to 1 MPa, where some of the steam is extracted and diverted to the open feedwater heater operating at 1 MPa. The remaining steam expands through the second turbine stage to a condenser pressure of 6 kPa. Saturated liquid exits the open feedwater heater at 1 MPa. The net power output is 264 MW. Determine (a) the thermal efficiency of the cycle, (b) the mass flow rate into the first turbine stage and (c) the fraction of flow extracted where bleeding occurs. (d) What-if Scenario: What would the net power developed be if the bleeding pressure were increased to 1.2 MPa?[E

Solve the Problem. A power plant operates on a regenerative vapor power cycle with one open feedwater heater. Steam enters the first turbine stage at 11 MPa, 600 ° C and expands to 1 MPa, where some of the steam is extracted and diverted to the open feedwater heater operating at 1 MPa. The remaining steam expands through the second turbine stage to a condenser pressure of 6 kPa. Saturated liquid exits the open feedwater heater at 1 MPa. The net power output is 264 MW. Determine (a) the thermal efficiency of the cycle, (b) the mass flow rate into the first turbine stage and (c) the fraction of flow extracted where bleeding occurs. (d) What-if Scenario: What would the net power developed be if the bleeding pressure were increased to 1.2 MPa?[E

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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Paula has worked for Brindle Corporation for 3 years. During this time, she has worked as a machine operator/cell leader in various work cells. Recently, the plant went to mandatory 12-hour shifts and plans to remain on this schedule for several months. Paula’s present work cell is manufacturing 3-inch diameter exhaust tubes that are made from stainless steel. These tubes get a hole punched in them, a flange welded on, and burrs ground off. The pipe then gets placed into a gage to check that it was made correctly. (The tubes weigh about six pounds.) Paula has been performing the welding operation. She leans into the machine and loads the part into a fixture then positions the flange. Both pieces are clamped (using hand clamps) into position and the machine is cycled by depressing two palm buttons. The gaging operation requires placing the finished part into the gage and clamping it (using hand clamps) into place. A pin is depressed to verify the position of the hole and a…