A set of data for a steam power plant operates with a Rankinecycle is obtained as the following:Boiler pressureSteam temperature11 MPa430°CHigh pressure turbine exhaust pressureReheat temperature1.5 MPa400°CCondenser pressure0.007 MPaIsentropic efficiency of high pressure turbine 85%Isentropic efficiency of low pressure turbine 87%a. Sketch and label the process cycle on the T- s diagram.b. Assume the work done on the boiler feed-water pump is notneglected, determine the following:i. Total heat supplied.ii. Total work output from both turbines.iii. Thermal efficiency.iv. Specific steam consumption.

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Answered: A set of data for a steam power plant…

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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i.Drawaschematic diagramof each problem with labels of states of a substance; ii.For uniformity purposes, assign STATE 1 at the inlet of ahigh-pressure turbine.The states must be arranged in a chronologicalorder; iii.Ploteach cycle in a t-s diagramwith the states consistentto the states assignment in the schematic diagram; iv.Show a detailed solution An ideal reheat Rankine cycle with water as the working fluid operates the boiler at 10MPa, the reheater at 2MPa, and the condenser at 0.1MPa. The temperature is 4500C at the entrance of the high-pressure and low-pressure turbines. The mass flow rate through the cycle is 1.74 kg/s. Determine a)the rate of heat transfer in the reheater, and b) thecyclethermal efficiency.
Specific Instruction: i.Drawaschematic diagramof each problem with labels of states of a substance;ii.For uniformity purposes, assign STATE 1 at the inlet of ahigh-pressure turbine.The states must be arranged in a chronologicalorder;iii.Ploteach cycle in a t-s diagramwith the states consistentto the states assignment in the schematic diagram;iv.Show a detailed solution 1.Consider a 200-MW steam power plant that operates on a simple ideal Rankine cycle. Steam enters the turbine at 8MPa and 400 0C and is cooled in the condenser at a pressure of 10 kPa. Determine (a) the quality of the steam at the turbine exit, and (b)themass flow rate of the steam.
Provide a complete and logical solution for the problem. If linear interpolation is required in the problem, tabulated values is considered as a solution. Also, provide T-S or P-V diagrams for each problem. For a Rankine Cycle, steam at 5.25 MPa, 435°C expands to 0.036 MPa. For 10 kg/s of steam, determine: a. Heat added b. Heat rejected c. Work of turbine d. Thermal Efficiency
Steam power plant shown in figure isoperating at steady state with water as the workingfluid. The mass flow rate of the water circulatingthrough the components is 50 kg/s. Determine: d) isentropic pump efficiencye) mass flow rate of the cooling water, in kg/s.f) rates of entropy production, each in kW/K, forthe turbine and steam generator.Include all the relevant governing equations andreferences to the tables you use. Be organize
A Carnot engine operating between 527C and 27 C produces 600KW of work. Determine, (a) Qa, KW; (b) Qr, KW; (c) ΔS during heat rejection, KW/K and (d) thermal efficiency of the cycle. (Please provide complete solution and write legibly.)
A Rankine steam cycle modified for reheat and three closed feedwater heaters is shown below. The high-pressure turbine receives 80 kg/s of steam from the steam boiler. The feedwater heater exit states for the boiler feedwater and the condensed steam are the normally assumed ideal states. The following data tables give the saturation data for the pressures and data for h and s at selected states. Take cp, water = 4.18 kJ/kg·K. Process states and selected data State P, kPa T, °C h, kJ/kg s, kJ/kg·K 1 10 2 5000 3 5000 4 5000 5 5000 6 5000 7 5000 700 3900 7.5136 8 2500 3615 7.5136 9 2500 600 3687 7.5979 10 925 3330 7.5979 11 300 3011 7.5979 12 75 2716 7.5979 13 10 2408 7.5979 Saturation data P, kPa T, °C vf, m3/kg hf, kJ/kg sf, kJ/kg·K 10 45.8 0.001010 191.8 8.149 75 91.8 0.001037 384.4 7.456 300 133.5 0.001073 561.4 6.992 925 176.5 0.001123 747.7 6.612 2500 224.0 0.001197 961.9 6.256 5000…
Perform a parametric study for a steam power plant operating between pressures of 7 MPa and 7 kPa on an ideal Rankine cycle. Use feedwater heater pressure as the variable. Produce plots similar to Figure IIb.2.3 for such parameters as fraction of the steam extraction, pump work, and turbine work.
Rannkin cycle 1_The value of enthalpy at point 1 is ( h1 =?) 2_ value of enthalpy at point 2 is ( h2 =?) 3_ value of enthalpy at point 3 is ( h3 =?) 4_value of enthalpy at point 4 is ( h4 =? 5_ value of steam mass flow rate in kg/s is 6_rate of heat supplied7_ power developed by Turbine (WT) in kW is : 8_ Thermal efficiency of Rankine cycle is:
Q1) Which type of boiler is selected in certain thermal power plant discuss the effects depend upon the natural circulation of water?
Steam enters the turbine of a simple vapor power plant with a pressure of 10 MPa and temperature of 580°C and expands adiabatically to 6 kPa. Determine (a) temperature at the turbine exit. Also calculate the (b) work input in the pump (in kJ/kg) and the (c) cycle thermal efficiency, in %. Use g = 9.81 m/s2 or 32.2 ft/s2 , T(K)=T(°C)+273 and T(R)=T(°F)+460, where applicable.
IDEAL RANKINE CYCLE: In an ideal Rankine Cycle, steam at 5 MPaa and 500 o C enters the turbine and expands 300 KPaa. For 110,000 kg/hr of steam, find: a) Ideal power output of the Turbine (kW), b) Power to drive the pump (kW), c) Rate of Heat Added (kW), d) thermal efficiency of cycle and engine, e) steam rate of the cycle and engine, f) Heat Rate (PLEASE SHOW COMPLETE SOLUTION AND ENCLOSE ALL THE FINAL ANSWERS ROUNDED OFF TO THE 4TH DECIMAL)
Figure P6.90 shows a simple vapor power cycle operating at steady state with water as the working fluid. Data at key locations are given on the figure. Flow through the turbine and pump occurs isentropically. Flow through the steam generator and condenser occurs at constant pressure. Stray heat transfer and kinetic and potential energy effects are negligible. Sketch the four processes of this cycle in series on a T-s diagram. Determine the thermal efficiency.

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