2. Steam at 13.8 MPa and 940°C enters a turbine and expands to 3.8 MPa where m1 is extracted for feedwater heating, the remainder is withdrawn and reheated to 720°C. Expansion then occurs to 0.90 MPa, where m2 is extracted for feedwater heating. The remaining steam is withdrawn and reheated to 5800C. Final expansion now Occurs to a condenser pressure 0.028 MPa. For an ideal cycle and 1kg of steam, find a) Wnet b) efficiency (1-

2. Steam at 13.8 MPa and 940°C enters a turbine and expands to 3.8 MPa where m1 is extracted for feedwater heating, the remainder is withdrawn and reheated to 720°C. Expansion then occurs to 0.90 MPa, where m2 is extracted for feedwater heating. The remaining steam is withdrawn and reheated to 5800C. Final expansion now Occurs to a condenser pressure 0.028 MPa. For an ideal cycle and 1kg of steam, find a) Wnet b) efficiency (1-

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

See similar textbooks

Similar questions

in an ideal rankine cycle, steam is generated at 4.1 mpa and 48°C. The condense is at 32°C. Determine the ideal pump work
Consider a steam plant operating on the ideal Rankine cycle. Steam enters the turbine at 3 MPa and 350°C and is condensed in the condenser at a pressure of 10 kPa. Determine The thermal efficiency if steam is superheated to 600°C instead of 350°C in %. Include your T - S diagram on your solution SI unit plsss thankyou
Steam is delivered to turbine at 5.4 MPa and 600 degree C. Before condensation at 31 degree C, steam is extracted for feed water heating at 0.6 MPa. The turbine exhaust is 60 degree C. the required values of some state point properties are tabulated below. 10. Calculate the net work of the cycle.
Q2. A cogeneration steam power plant has been modified with introducing an open feedwater heater as shown in figure below. Working pressure of the plant is between 6 MPa and 10 kPa for the boiler pressure and condensate pressure. The steam is extracted at 0.5 MPa for process heater and feedwater heater. The superheated srteam enters the turbine at 500°C at a rate of 25 kg/s and expands to the condensate pressure of 0.5 MPa. There is 60 percent of the steam is extracted from the turbine at the pressure of 0.5 MPa, and the remainder expands to a pressure of 10 kPa. Part of the extracted steam is used to heat feedwater and the rest of the extracted steam is used for process heating. The steam leaves the process heater as a saturated liquid at 0.5 MPa. It is subsequently mixed with the feedwater leaving the feedwater heater, and the mixture is pumped to the boiler pressure. The steam in the condenser is cooled and condensed by the cooling water from a nearby river, which enters the…
A flashed steam geothermal power plant is located where underground hot water is available as a saturated liquid at 700 kPa. The well-head pressure is 600 kPa. The flashed steam enters the steam turbine at 500 kPa and expands to 15 kPa when it is condensed. The flow rate from the well is 29.6 kg/s. Determine the cycle thermal efficiency of the plant in %. If the steam table is needed, please use the green book entitled "Thermodynamics Properties of Water Including Vapor, Liquid, and Solid Phases" by Keenan, Keyes, Hill, and Moore.
Show complete solutions. In an ideal reheat-regenerative cycle, steam enters the turbine at 8.1547 Mpa and 400.547°C. After expansion to 280.547°C the steam is withdrawn and reheated to 340°C. Extractions for feedwater heating occurs at 1.6547 Mpa and 0.70547 Mpa and condenser pressure is 0.005547 Mpa a) For ideal cycle, find e,? b) Draw the schematic diagram and T-s diagram with label.
Steam enters the turbine at 10 MN/m? and 450°C. The steam expanded isentropically in the turbine down to the condenser pressure of 20 kN/m?. The power developed by the plant is 5600 kW. The condensate leaving the condenser is pumped to the boiler pressure isentropically. Taking into account the pump work and calculate: The mass of steam generated in the boiler. • Cycle thermal efficiency. • Specific steam consumption. Draw the cycle on a T-s diagram. Hint: 1 MN/m = 10 bar %3D
Steam is supplied to a two-stage turbine at 40 bar and 350°C. It expands in the first turbine until it is just dry saturated, then it is re-heated to 350°C and expanded through the second-stage turbine. The condenser pressure is 0.035 bar. Calculate the work output and the heat supplied per kilogram of steam for the plant, assuming ideal processes and neglecting the feed-pump term. Calculate also the specific steam consumption and the cycle efficiency
Oren is hired to design a massive 450 MW power plant for the city of Dubai. Oren decides that the optimal efficiency would be obtained if the pressure of saturdted vapár entering the turbine should be 10 MPa.and the presJure of saturated liquid exiting the condensor to be 0.005 MPa. Dubai is in the United Arab Emirates (UAE), where the water from the Persian Gulf is 4O °C and UAE environmental laws limit the exiting coa ling water to a maximum temperature of 45°C (to prevent damage to local fishing industry). For Oren's power plant, calculate : A.) heat input from the boiler (in MegaWatts) B.) thermal efficiency C.) mass flow rate of caoling water (in k/s)