The net power output of the turbine in an ideal reheat-regenertive cycle is 100 MW. Steam enters the high-pressure (H.P.) turbine at 90 bar, 550°C. After .expansion to 7 bar, some of the steam goes to an open heater and the balance is reheated to 400°C, after which it expands to 0.07 bar. (a) What is the steam flow rate to the H.P. turbine? (b) What is the total pump work? (c) Calculate the cycle efficiency. (d) If there is a

The net power output of the turbine in an ideal reheat-regenertive cycle is 100 MW. Steam enters the high-pressure (H.P.) turbine at 90 bar, 550°C. After .expansion to 7 bar, some of the steam goes to an open heater and the balance is reheated to 400°C, after which it expands to 0.07 bar. (a) What is the steam flow rate to the H.P. turbine? (b) What is the total pump work? (c) Calculate the cycle efficiency. (d) If there is a

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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Instructions: solve problems under the concept of Reheat, Regenerative and Reheat-Regenerative Cycle in Rankine cycles (set the values to 4 decimal places for consistency) Review Questions (M.1) Steam at 10 MPa, 600 °C enters the first-stage turbine of an ideal Rankine cycle with reheat. The steam leaving the reheat section of the steam generator is at 500 °C, and the condenser pressure is 6 kPa. If the quality at the exit of the second stage turbine is 90%, determine a) the mass flow rate of the steam in kg/h and b) thermal efficiency (%) of the cycle c) mass of the cooling water in kg/ h, if the temperature rise in the cooling water is 20 °C.
Water is the working fluid in an ideal Rankine cycle. Steam enters the turbine at 1400 Ibę/in? and 1000°F. The condenser pressure is 2 Ib/in.? The net power output of the cycle is 250 MW. Cooling water experiences a temperature increase from 60°F to 76°F, with negligible pressure drop, as it passes through the condenser. Step 1 Your answer is correct. Determine the mass flow rate of steam, in Ib/h. 1536000 Ib/h
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In an ideal reheat-rgenerative cycle, steam enters the turbine at 6 MPaa and 400 degrees Celsius. After expansion to 1.4 MPaa steam is withdrawn and reheated to 300 degrees Celsius . Extractions for regenerative heating occur at 0.15 MPaa and 1.4 MPaa and the condenser pressure is 0.1 MPaa. Use mass flowrate of 1 kg/s. Compute for the following 9. Thermal cycle efficiency 10. Thermal engine efficiency
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My Question: In the steam plant problem#2, the reheater developed a leak and it was decided to run the plant bypassing the reheater. Determine the thermal efficiency and steam flow rate to develop the same power output.Problem 2 (In a reheat cycle steam enters the high-pressure turbine at 40 bar and 400C. It expands isentropically to 6 bar and is reheated at constant pressure to 400C. This steam is expanded isentropically in the low pressure turbine to the condenser pressure of 0.1 bar. Calculate the thermal efficiency and steam consumption for 10 MW output.)
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Low-P High-P turbine turbine Reheater (4) Boiler P= P3= Preheat Pump Condenser The following data was given for a steam power plant operating on the ideal reheat Rankine cycle 3-4 Inlet steam at 17.5 MPa and 600 C 6-1: inlet steam at a pressure of 11.16 kPa at a wetness fraction of 0.1 At state 1, the specific volume is 0 00101 m /kg Find the specific entropy in kJ/kg at state 1 to 3 decimal places
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