Q4: Consider a steam power plant that operates on an ideal reheat-regenerative Rankine cycle with one open feedwater heater, one closedfeedwater heater, and one reheater. Steam enters the turbine at 15 MPathe condenser at a pressure of 10 kPa.and 600°C and is condensedSome steam is extracted from the turbine at 4 MPa for the closedfeedwater heater, and the remaining steam is reheated at the samepressure to 600°C. The extracted steam is completely condensed in theheater and is pumped to 15 MPa before it mixes with the feedwater at thesame pressure. Steam for the open feedwater heater is extracted from thelow-pressure turbine at a pressure of 0.5 MPa. Determine the fractions ofsteam extracted from the turbine as well as the thermal efficiency of theсycle.I kg15 MPaTA600°C11High-PturbineLow-PturbineBoilerReheater1015 MPaPo= P =4 MPa 600°C24 MPa101-y -z121-y6.1-y4 MPa0.5 MPa10 kPa0.5 MPa12ОpenFWHClosed1-y-zFWH10 kPaMixingchamber13CondenserPump IIIPump IIPump I

From given T-s Diagram we Pressure valuesBy Pressure from Steam Table get the enthalpies at various…

Q4: Consider a steam power plant that operates on an idea regenerative Rankine cycle with one open feedwater heater, one clos feedwater heater, and one reheater. Steam enters the turbine at 15 M and 600°C and is condensed in the condenser at a pressure of 10 kl Some steam is extracted from the turbine at 4 MPa for the clos feedwater heater, and the remaining steam is reheated at the sa

Q4: Consider a steam power plant that operates on an idea regenerative Rankine cycle with one open feedwater heater, one clos feedwater heater, and one reheater. Steam enters the turbine at 15 M and 600°C and is condensed in the condenser at a pressure of 10 kl Some steam is extracted from the turbine at 4 MPa for the clos feedwater heater, and the remaining steam is reheated at the sa

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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S Example Consider a steam power plant operating. on the ideal Rankine cycle. the steam enters the turbine at 3MPa, 350°C and is condensed in condenser at P=10K Pa Determin: Thermal efficiency of the power plant. Thermal efficiency if the steam is super heated to (600°C), instead of (350°C) Thermal efficiency if the boiler pressure is raised to 15MPa while the turbine inlet temp. is maintained at 600°C.
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Water is the working fluid in an ideal Rankine cycle with regeneration. All steam enters the first turbine stage at 12 MPa, 520 °C and expands to 1 MPa where some of the steam is extracted and diverted to the open feedwater heat exchanger operating at 1 MPa. The remaining steam keeps expanding through the second turbine stage and exits at 6 kPa, then goes through a heat exchange to cool to saturated liquid water. After that, the pump increases the pressure back to 1 MPa. Then it goes to the feedwater heat exchanger. Satureated liquid water leaves the feedwater heat exchanger then pumped back to 12 MPa. Find: (1) Sketch the process on a T-s diagram. (2) Thermal efficiency. (3) Mass flow rate of the total steam if net power output is 330 MW.
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AN ELECTRIC POWER PLANT OPERATES BASED ON A RANKINE CYCLE IDEAL STEAM REGENERATIVE WITH TWO FEED WATER HEATERS AND OVERHEATING. STEAM ENTERS THE TURBINE AT 15 MPa AND 600 C AND ESCAPE TOWARDS CONDENSER AT 6 kPa. THE STEAM IS SUPERHEATED TO 0.8 MPa AND 500C. ONE IS MADE STEAM EXTRACTION FROM THE TURBINE AT 1.4 MPa TO A CLOSED WATER HEATER FEED AND CONDENSATE FROM THIS HEATER IS THROTTED AND DELIVERED TO OPEN FEEDWATER HEATER; STEAM EXTRACTION OF THE TURBINE TO THE OPEN FEEDWATER HEATER IS CARRIED OUT AT 0.4 MPa. THE TURBINE DEVELOPS A POWER OF 100 MW. DETERMINE: a) DRAW THE T-s AND EQUIPMENT DIAGRAMS b) THE THERMAL EFFICIENCY OF THE CYCLE. c) THE FLOW OF WATER NECESSARY TO CONDENSE THE STEAM THAT ENTERS THE CONDENSER, IF THE WATER FOR IT ENTERS AT A TEMPERATURE OF 22C AND SALE WITH AN INCREASE OF 10 DEGREES. d) THE MASS FLOW OF STEAM THROUGH THE STEAM GENERATOR FOR AN OUTPUT OF POWER IN THE TURBINE OF 100 MW.
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 power plant operating on the ideal Rankine cycle with R134A as a medium. The turbine is operated at 1.4 MPa and the condenser works at 100 kPa. The mixture at the exit of the turbine has a quality of 98.53% 1. Determine the work-input of pump. 2. Determine the heat addition in the boiler.
A 60 MW power plant operates with a reheat cycle. The steam enters the turbine at 15 MPa, 590°C. The steam enters the reheater at 1.95 MPa and 280°C and exits at 1.8 MPa, 590°C. Conden pressure is. 0.0035 MPa. The steam rate is 150.000 kg/hr, and the generator efficiency is 90%. Determine the following: 1. Ideal cycle thermal efficiency without pressure drop 2. Actual cycle thermal efficiency 3. Actual combined engine efficiency 4. Enthalpy of exhaust steam (at point 4) if the heat lost through the turbine casing is 2% of the combined work.
2. Consider a 210 MW steam power plant operating on an ideal Rankine cycle. Steam enters the turbine at 10 pressure of 10 kPa. Show the cycle on a T-s diagram MPa and 500°C and is cooled in the conder with respect to saturation lines, and determ Saved successfully im at the turbine exit, (b) the thermal efficiency of the cycle and (c) the mass flow rate of the steam. I ne isentropic efficiencies of both turbines are 80% and 85% respectively. pumps and
Q2) Consider a steam power plant that operates on a simple Rankine cycle and has a net power output of 45 MW. Steam enters the turbine at 7 MPa and 500°C and is cooled in the condenser at a pressure of 10 kPa by running cooling water from a lake through the tubes of the condenser at a rate of 2000 kg/s, note that steam enter pump with enthalpy 191.81kJ/kg and enter turbine with enthalpy 3411.4kJ/kg and entropy 6.8 kJ/kg.k assuming an isentropic efficiency of 87 percent for both the turbine and the pump determine (a) the thermal efficiency of the cycle, (b) the temperature rise of the cooling water.
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A power plant operating in a Reheat Rankine Cycle produces steam at 3 MPa, 600oC in the boiler. It keeps the condenser at 45oC by transfer of 10 MW out as heat transfer. The first turbine section (high-pressure) expands to 500 kPa and then flow is reheated followed by the expansion in the low-pressure turbine. Provide a detailed solution. Avoid shortcuts. Find the boiler heat transfer including the reheat process (kW)