Assignment 10, Question 4, Problem Book #202Problem StatementAn ideal Brayton cycle with a two-stage compressor, a two-stage turbine, and a regeneratoroperates with a mass flow rate of 25 kg/s. The regenerator cold inlet is at 490 K and itseffectiveness is 60%. Ambient conditions are 90 kPa and 20°C. The intercooler operates at450 kPa and the reheater operates at 550 kPa. The temperature at the exit of the combustionchamber is 1,400 K. Heat is removed in the intercooler at a rate of 2.5 MW and heat is addedin the reheater at a rate of 10 MW. Determine the thermal efficiency and the back workratio. Use a cold air standard analysis with cp = 1.005 kJ/(kg K) and k = 1.4..Answer TableStageDescriptionYour AnswerCorrectAnswerDue DateGrade(%)1Thermal efficiency (%)Dec 5, 2024 11:59 pm0.01Weight Attempt Action/Message1/5PartTypeSubmit1Back work ratio (%)Dec 5, 2024 11:59 pm0.01* Correct answers will only show after due date has passed.

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Answered: Assignment 10, Question 4, Problem Book…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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MODIFIED NON-IDEAL BRAYTON CYCLE GAS TURBINE: Use Air Standard Analysis SHOW COMPLETE SOLUTION.
1. A Rankine cycle with reheating has a throttle pressure of 135 bars at the turbine inlet and 28 bars reheat pressure, the throttle and reheat temperature of the steam is 550C, condenser pressure is 0.035 bar, mass flow rate of steam is 10 kg/sec. Draw the T-s and schematic diagram of the cycle and determine the following: (a) ideal turbine work (b) ideal pump work
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An ideal Brayton cycle is used in a gas-turbine power Q2a. plant with two stages of expansion and two stages of compression. Air enters each stage of the compressor and turbine at 17 °C and 1067 °C, respectively. If the overall pressure ratio is 9.5, determine the efficiency of the cycle considering the variation of specific heat with temperature. O a. 37.2% Ob. 42% Oc. 36.8% O'd. 28.9% e. 48.1%
Required information Problem 09.097 - Modified Brayton Cycle with Two-Step Expansion - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS A gas-turbine power plant operates on a modified Brayton cycle shown in the figure with an overall pressure ratio of 8. Air enters the compressor at 0°C and 110 kPa. The maximum cycle temperature is 1500 K. The compressor and the turbines are isentropic. The high-pressure turbine develops just enough power to run the compressor. Assume constant properties for air at 300 K with cy= 0.718 kJ/kg-K, cp=1.005 kJ/kg-K, R= 0.287 kJ/kg-K, and k = 1.4. Combustion chamber Compressor to High-pressure turbine Low-pressure turbine Problem 09.097.c - Net Power Output of Low Pressure Turbine If the net power output is 200 MW, determine the mass flow rate of the air into the compressor in kg/s. The mass flow rate of the air into the compressor is kg/s.
Required information Problem 09.097 - Modified Brayton Cycle with Two-Step Expansion - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS A gas-turbine power plant operates on a modified Brayton cycle shown in the figure with an overall pressure ratio of 8. Air enters the compressor at 0°C and 110 kPa. The maximum cycle temperature is 1500 K. The compressor and the turbines are isentropic. The high-pressure turbine develops just enough power to run the compressor. Assume constant properties for air at 300 K with cy= 0.718 kJ/kg-K, cp= 1.005 kJ/kg-K, R= 0.287 kJ/kg-K, and k = 1.4. Combustion chamber Compressor O High-pressure turbine Problem 09.097.b - Temperature and Pressure After High Pressure Turbine The temperature at state 4 is The pressure at state 4 is Determine the temperature and pressure at state 4, the exit of the high-pressure turbine. (You must provide an answer before moving on to the next part.) Low-pressure turbine K. kPa
Problem 3 (activity) A regenerative steam turbine has a throttle pressure of 3.8 MPa at 380°C and a condenser at 0.01 MPa. Steam are extracted at the following points: 2.0 MPa, 1.0 MPa, and at 0.2 MPa. For the ideal cycle, find (a) The amount of steam extracted (b) W, Q, and e. (c) For an ideal engine and the same states, compute (d) W, Q, and e and
solve a, b, and c
Required information Problem 09.097 - Modified Brayton Cycle with Two-Step Expansion - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS A gas-turbine power plant operates on a modified Brayton cycle shown in the figure with an overall pressure ratio of 8. Air enters the compressor at 0°C and 110 kPa. The maximum cycle temperature is 1500 K. The compressor and the turbines are isentropic. The high-pressure turbine develops just enough power to run the compressor. Assume constant properties for air at 300 K with cy= 0.718 kJ/kg-K, cp=1.005 kJ/kg-K, R= 0.287 kJ/kg-K, and k = 1.4. Combustion chamber Compressor High-pressure turbine Low-pressure turbine Problem 09.097.a - P-v and T-s Diagrams for Modified Brayton Cycle Sketch the T-s diagram for the cycle. Label the data states. (Please upload your response/solution using the controls provided below.) (You must provide an answer before moving on to the next part.)
Problem 2: Known: The gas turbine cycle working under the principle of Brayton cycle (a) Explain about the general theory related to the Gas turbine power plant? (b) Formulate to determine the amount of heat rejected? (c) Determine the thermal efficiency of the cycle? Conditions: The air is compressed at the compressor at a pressure of 120 kPa and at a temperature of 28 "C. The pressure ratio is given as 7. The flue gases enter into the turbine at a temperature of 850 °C. Consider compressor efficiency of 90% and turbine efficiency of 85%. Take y-1.4 and Cp 1.005 KJ/kg K. Scheme and given data: Compressor 120 kPa 28°C. Combustion chamber 850°C Turbine
In an ideal reheat cycle, the steam throttled condition is 8 MPa and 480 degree C. the steam is then reheated to MPa and 460 degree C. the turbine exhaust is 60 degree C. The required values of some state point properties are tabulated below. 4. Calculate the total turbine work of the cycle.

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