LinBoiler i4PumpTurbineWW₁LoutCooling waterCondenserA steam turbine operating on the Ideal Rankine cyclereceives steam with a flow rate of 5400 kg/h, at a pressureof 15 bar and a temperature of 450 °C. In the condenser,seawater circulates at 32 °C (condenser pressure is 10kPa). Given that the lower heating value of the fuel used inthe boiler is 40700 kJ/kg, find the thermal efficiency of thesystem for the three options listed below.a) In case of 5-10-15% steam loss between the boiler and the turbine,b) Between turbine and condenser 5-10-15% steam loss to be in case,c) 10% steam loss between boiler-turbine and turbine-condenser calculate in case.

Step 1: Find the properties, I used REFROP for finding the thermodynamic properties of steam. Work…

Answered: Lin Boiler i 4 Pump Turbine W W₁ Lout…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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A medium size power station is used to produce 30 MW net power for arefinery. The station uses steam as the operating fluid and operatesaccording to the Carnot cycle between the pressure limits of 0.4 bar and35 bar. Steam enters the boiler as a saturated liquid and leaves it as adry saturated vapour. (i) Calculate the thermal efficiency of the power station if theisentropic efficiency of the steam turbine is 94%. (ii) State main disadvantages of using the Carnot cycle as the basis fora power station. (iii) State the name of the cycle that is used in practice in powerstations, along with three key benefits over the Carnot cycle.
It is proposed to design and develop a Rankine cycle Steam Power Plant in which steam at 80 barand 500 oCis supplied to the turbine which exhausts at a pressure of 0.11 bar into a condenser. Condensate from the condenser is returned to Steam Generator (Boiler) by a Feedwater Pump. The processes in the turbine and pump can be assumed to be reversible adiabatic. In addition, pressure and temperature drops can be neglected throughout the cycle. Sketch the T-s diagram for this cycle and calculate the following performance parameters:i) Cycle Thermal Efficiency ii) Work Ratioiii) Specific Steam Consumptioniv) Condenser Heat Loadv) Mass flow rate of steam to generate a net power output of 40 Megawatts (MW).vi) Mass flow rate of cooling water required for the condenser if the cooling water inlettemperature is 26 oC and its outlet temperature is limited to 40 oC. The specific heat capacityof the cooling water is 4.18 kJ/kg K.viii) The total amount of sensible heat in kW supplied to the…
When a steam boiler generates saturated steam at 2.5 mpa and the condenser pressure is 20 kpa, what is the Rankine cycle efficiency?Show complete step-by-step process and solution.
In a reheat cycle steam at 15 MPa, 540 ̊C enters the engine and expands to 1.95 MPa.At this point the steam is withdrawn and passed through a reheater. It reenters the engineat 540 ̊C. Expansion now occurs to the condenser pressure of 0.0035 MPa (a) For theideal cycle, find e. (b) A 60,000 kw turbine operates between the same state piontsexcept that the steam enters the reheater at 1.95 MPa and 260 ̊C, departs at 1.8 MPa and540 ̊C. the steam flow is 147,000 kg/hr, generator efficiency is 96%. For actual enginefind ek, mk, and nk.
A simple Rankine cycle with ideal components except the turbine is shown. Boiler exit temperature and pressure are 440°C and 4 MPa, respectively. Condenser pressure is 30 kPa. The isentropic efficiency of the turbine is 95% and the power generated by the turbine is 7 MW. Calculate the mass flow rate of the steam in kg/s. Boiler Turbine 3 QB Wp Condenser а. 3.7 O b. 4.8 C. 6.3 d. 7.5 e. 9.5 f. 10.2 g. 11.3
Consider a simple ideal Rankine cycle with fixed boiler and condenser pressures.. Whathappens if the steam is superheated to a higher temperature?
Problem (1.2) A steam power plant working according to simple Rankine cycle. It has a high pressure of 3 MPa and it maintains 60°C in the condenser. A condensing turbine is used, but the quality should not be lower than 90% at any state in the turbine. Find the cycle efficiency. [reference: Fundamentals of Thermodynamics by Borgnakke & Sonntag prob.11.18,p-460].(Ans.33.2 %).
The net work output and the thermal efficiency for the Carnot and the simple ideal Rankinecycles with steam as the working fluid are to be calculated and compared. Steam enters theturbine in both cases at 10 MPa as a saturated vapor, and the condenser pressure is 20 kPa.In the Rankine cycle, the condenser exit state is saturated liquid and in the Carnot cycle, theboiler inlet state is saturated liquid. Draw the T-s diagrams for both cycles.
Calculate the heat supplied, the turbine work, and the pump work per kg of steam in a Rankine cycle where steam leaves the boiler at 4 MPa, 400ºC, and the condenser operates at a pressure of 10 kPa. Also, compute the cycle efficiency. Assume the processes in the turbine and pump to be reversible and adiabatic.
It has been decided to operate a steam power station on a Rankine Cycle with a relativelyhigh condenser pressure of 8 bar so that the condenser cooling water can be used for adistrict heating scheme. The steam pressure and temperature at exit from the boiler are100 bar and 500 °C respectively. Neglect the power needed for the feed pump and assume the turbine operates isentropically. a) If 400 MW of power are required for the district heating, calculate the rate of steamrequired to flow through the condenser.b) What would be the net power (work rate) output from the plant? c) Calculate the cycle efficiency and comment on your result.
In a Rankine cycle, steam enters the turbine at 2.5 MPa and condenser at 50 kPa, what is the thermal efficiency of the cycle?
Problem (1.1) Consider a solar-energy- powered ideal Rankine, see figure (1), this cycle uses water as the working fluid. Saturated vapor leaves the solar collector at 175°C, and the condenser pressure is 10 kPa. Determine the thermal efficiency of this cycle. [reference: Fundamentals of Thermodynamics by Borgnakke & Sonntag prob.11.14,p-460].(Ans.26.1 %). th Solar collector ORAD Turbine Condenser W₁ Figure (1): Simple Rankine Cycle.

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