Your expertise is needed to analyze the efficiency and effectiveness of a non-ideal Rankine cycle system. This system operates withwater as the working fluid, cycling between a low pressure of 0.1 MPa and a high pressure of 15 MPa. The cycle includes a boilerwhere 2905 kJ/kg of heat is added, and the water entering the pump is 95°C. The pump is isentropic, while the turbine has anisentropic efficiency of 87%. Both the pump and turbine are adiabatic, and there are no pressure losses in the condenser and boiler.(a) Find the temperature of the water as it enters the turbine. (3 pts)(b) What is the specific enthalpy at the turbine outlet, in kJ/kg. (3 pts)(c) Determine the amount of net work, in kJ/kg. (4 pts)Bonus (2 pts)What is the overall efficiency of the cycle.

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Answered: Your expertise is needed to analyze the…

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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Consider an ideal Rankine cycle with reheating as shown. Steam enters a high-pressure turbine at 6 MPa and 440°C and expands to 0.5 MPa then reheated to 400°C. The condenser pressure is 8 kPa. • Calculate the quality at the exit of the low-pressure turbine, x6 = • Calculate the work produced by the low-pressure turbine in kJ/kg • Calculate the heat transfer in reheating (greheat) in kJ/kg = Boiler Turbine 3 QH 5 Condenser 87.3% || 89.0%||| 91.1% | 94.3% || 95.9% || 99.0% 763 |805 || 832 || 851878 || 901 513 556| 581 665 | 697|| 758
Consider a steam power 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
A simple Bravton cycle operates between the pressure limits of 100 and 2000 kPa. The working fluid is air which enters the compressor at 40 "C at a rate of 4 kg/s and enters the turbine at 1400 °C. The compressor is ideal (i.e., n= 100%) and the turbine has an isentropic efficiency of n= 90%. For this problem, assume that air is an ideal gas with constant specific heats (R= 0.287 kJ/kg-K, C, = 1.005 kJ/kg-K, C, = 0.718 kJ/kg-K, k= 1.4). %3D (a) Determine the net work output, in kW. (b) Determine the thermal efficiency of the cycle. Heat exchanger Compressor Turbine Heat exchanger Jout
A simple ideal Rankine cycle with water as the working fluid operates between the pressure limits of 10 MPa in Boiler the boiler and 10 kPa in the condenser and a turbine inlet temperature of 500°C. The boiler is sized to provide a steam flow of 165 kg/s. Determine: (a)(s) the quality of the steam at the turbine exit, (b) the thermal efficiency of the cycle, and (c) 2) the net power produced by the cycle Wa Condesser Turbine
Consider a simple ideal Rankine cycle. What happens when the condenser pressure is raised while keeping the turbine inlet state the same?
Determine the thermal efficiency
A steam power plant operating on a non-ideal Rankine cycle is shown in the diagram below. Heat is supplied to the boiler by a hot oil stream at 450°C. The oil has a constant specific heat of 2.7 kJ/kg.k. The mass flow rate of steam is 5 kg/s. This cycle reject heat to the ambient surroundings at 25°C. All other necessary conditions and isentropic efficiencies are given in the diagram below. Determine: (a) the power input to the pump (W pump) (b) the power output by the turbine (Wurbine). (c) The net power output from the cycle (Wnet) (d) the heat input to the boiler (QH). (e) the heat output from the condenser (QL). (f) the thermal efficiency of the cycle. (g) the mass flow rate of oil (ṁ oil). (h) The entropy generation rate in kW/K. mol = ? Toil, in= 450°C m:team = 5 kg/s P; = 20 bar P; = 20 bar T; = 400°C Boiler Teil,out = 410°C W pump W Turbine Pump -> Nisentropic = 0.7 Nisentropic = 0.6 Condenser P, =8 kPa P3 =8 kPa Ambient Environment, T= 25°C %3D
A Rankine Cycle operates at a throttle pressure and temperature of 5 MPa and 450°C, respectively. The generator produces 20 MW at an efficiency of 95% while the mechanical efficiency is 97%. The actual expansion efficiency of the turbine is 85% and the pressure of the condenser is 10 kPa. Determine the ideal engine heat rate in kJ/kWh.
14
A Rankine Cycle operates at a throttle pressure and temperature of 5 MPa and 450°C, respectively. The generator produces 20 MW at an efficiency of 95% while the mechanical efficiency is 97%. The actual expansion efficiency of the turbine is 85% and the pressure of the condenser is 10 kPa. Determine the mass flow rate of steam in kg/s

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