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Transcribed image text: 2 1 A steam power plant operates between a boiler pressure of 42 bar and a condenser pressure of 0.035 bar For a Rankine with dry saturated steam at entry to the turbine, (a) draw the T-s diagram of the cycle, and (b) calculate for these lmits (1) the cycle efficiency, (n) the work ratio (I) the steam rate 2 2 If the steam is superheated to 500 °C, and …
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A steam power plant operates between a boiler pressure of 48 bar and a condenser pressure of 0.04 bar Calculate for these limits the cycle efficiency for a Carmot cycle using wet steam NB Answer in decimal and not percentage to 4 decimal places check_circle Expert Answer.
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Thermodynamic assignment 2 - SlideShare
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Nov 28, 2017 · Steam Power Cycle and Basics of Boiler 1. THERMAL POWER PLANT by: Mulugeta T. 1 2. CHAPTER-2: 2. Analysis of Steam Cycles 2.1 Introduction • A steam power plant continuously converts the energy stored fossil fuels (coal, petroleum, and natural gas ) or fissile fuels (uranium, thorium) OR other energy resources in to shaft work and ultimately into electricity.
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A steam power plant operates on a simple ideal Rankine cycle between the pressure limits of 9 Mpa and 50 kPa. Superheated vapors enter the turbine at 500 oC. Determine for the cycle: a) The rate of heat supplied to the boiler per kg of steam flow. b) The net power output per kg of steam flow through the boiler. c) The thermal efficiency.
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11.1 Is a steam power plant running in a Carnot cycle? Name the four processes. No. It runs in a Rankine cycle. 1-2: An isentropic compression (constant s) Pump 2-3: An isobaric heating (constant P) Boiler 3-4: An isentropic expansion (constant s) Turbine 4-1: An isobaric cooling, heat rejection (constant P) Condenser
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Superheating is not typical for nuclear power plants. Typically most nuclear power plants operate multi-stage condensing steam turbines. The high-pressure stage receives steam (this steam is nearly saturated steam – x = 0.995 – point C at the figure; 6 MPa; 275.6°C). Since neither the steam generator is efficient, there is always a
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A steam power plant operates between a boiler pressure of 52 bar and a condenser pressure of 0.045 bar. Calculate for these limits the cycle efficiency for a Rankine cycle with dry saturated steam at entry to the turbine. close. Start your trial now! First week only $4.99! arrow_forward.
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Example 9.1 A steam power plant operates between a boiler pressure of 4 MPa and 300"C and a condenser pressure of 50 kPa. Determine the thermal efficiency of the cycle, the work ratio, and the specific steam flow rate, assuming (a) the cycle to be a Carnot cycle, and (b) a simple ideal Rankine cycle. Solution (a) The T-s diagram of a Carnot cycle is shown in the adjacent figure.
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Steam Rankine cycle is known as one of the main power-generating cycles, which consists of four key devices, namely a boiler (heat exchanger), a steam turbine, a condenser (heat exchanger), and a pump, as illustrated in Fig. 28.This cycle needs heat input for the boiler either by burning fossil fuels, such as oil, coal, and natural gas, or by obtaining the necessary heat from renewable …
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2. A steam power plant is based on the Carnot cycle. The boiler is supplied with saturated water at 20 bar and produces dry saturated steam at 20 bar. The condenser operates at 0.1 bar. Assuming a mass flow rate of 1 kg/s calculate the following. i. The thermal efficiency. (34.3%) ii. The power output of the turbine. (792 kW) iii. The heat
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Steam Power Station: Components, Application, and Working Mechanism. Steam Boiler, Thermal Power Plants. A steam power station utilizes heat energy produced from burning coal to generate electrical energy. This kind of power station is generally used around the world. Because of the wealth of fuel (coal), this set of the power station can be
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These boilers are also known as heat recovery steam generators. High-pressure steam from these boilers can be used to generate additional electric power with steam turbines, a configuration called a combined cycle. A simple cycle gas turbine can achieve energy conversion efficiencies ranging between 20 and 35 percent.
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A household refrigerator with a COP of 1.1 removes the heat from the refrigerated space at a rate of 105 kJ/h. Calculate : i. The electric power consumption by the refrigerator ii. The heat transferred into atmosphere in the kitchen. 6. A steam power plants operates between a boiler pressure of 40 bar and a condenser pressure
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A steam power plant operates between 40 bar boiler pressure and 0.1. bar condenser pressure. Calculate for these limits the cycle efficiency, the work ratio, and the specific steam consumption, for each case then make a comparison between all cases and comment on it:Case 3 - Rankine cycle when the steam is superheated to 500 ̊C at the entry of the turbine.
Get priceSolution for A steam power plant operates between a boiler pressure of 68 bar and a condenser pressure of 0.06 bar.
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Dec 08, 2015 · Borgnakke and Sonntag 7.35 In a steam power plant 1 MW is added in the boiler, 0.58 MW is taken out in the condenser and the pump work is 0.02 MW. Find the plant thermal efficiency. If everything could be reversed find the coefficient of performance as a refrigerator. Solution: WT Q H QL . WP, in CV. Total plant: Energy Eq.: Q . H + W . P,in
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Superheating is not typical for nuclear power plants. Typically most nuclear power plants operate multi-stage condensing steam turbines. The high-pressure stage receives steam (this steam is nearly saturated steam – x = 0.995 – point C at the figure; 6 MPa; 275.6°C). Since neither the steam generator is efficient, there is always a
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Oct 16, 2016 · A steam power plant operates between a boiler pressure of 42 bar and a condenser pressure of 0.035 bar. Calculate for these limits the cycle efficiency, the work ratio, and the specific steam consumption (i) for a Carnot cycle using wet steam (ii) for a Rankine cycle with dry saturated steam at entry to the turbine
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See Page 1. Example 8.1 A steam power plant operates between a boiler pressure of 42 bar and a condenser pressure of 0.035 bar. Calculate for these limits the thermal efficiency, the work ratio and the specific steam consumption: a) For a Carnot cycle using wet steam b) For a Rankine cycle with dry saturated steam at entry to the turbine c) For
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Co-generation plant is a power plant to supply both electric power and heat (in most cases steam). Co-generation plants are applied as effective solution for industrial purpose power plants to factories. Utilization of surplus energy from the factory as fuel for the boiler will further enhance effective use of the available energy.
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Jun 06, 2021 · Mechanical Engineering questions and answers. 1) A steam power plant operates between a boiler pressure of 52 bar and a condenser pressure of 0.045 bar. Calculate for these limits the cycle the work ratio for a Carnot cycle using wet steam 2) A steam power plant operates between a boiler pressure of 62 bar and a condenser pressure of 0.055 bar.
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A steam power plant consists of a boiler, a steam turbine, a generator, and other auxiliaries. The boiler generates steam at high pressure and high temperature. The steam turbine converts the heat energy of steam into mechanical energy. Through proper integration
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A steam power plant operates between boiler temperature of 160°C and condenser temperature of 50°C. Water enters the boiler as saturated liquid and steam leaves the boiler as saturated vapour. Verify the Clausius inequality for the cycle. Given …
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Consider a steam power plant that operates on the ideal reheat Rankine cycle. The plant maintains the boiler at 17.5 MPa, the reheater at 2 MPa, and the condenser at 50 kPa. The temperature is 550°C at the entrance of the high-pressure turbine, and 300°C at the entrance of the low-pressure turbine. Determine the thermal efficiency of this system.
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the plant must judge whether a boiler plant is oversized. 3. Before the steam plant owner attempts to reduce steam pressure, an assessment of the boiler plant and steam system should be made. This should include an analysis of the average and peak steam loads in . …
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Aug 03, 2021 · 1 Answer to A steam power plant operate between a boiler pressure of 42 bar and a condenser pressure of 0.035 bar .Calculate for the cycle efficiency, working ratio and specific steam consumption fori) A Carnot cycle using wet steamii) A Rankin's cycle with dry saturated steam at entry at the turbine
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A steam power plant operates on a simple ideal Rankine cycle between the pressure limits of 9 Mpa and 50 kPa. Superheated vapors enter the turbine at 500 oC. Determine for the cycle: a) The rate of heat supplied to the boiler per kg of steam flow. b) The net power output per kg of steam flow through the boiler. c) The thermal efficiency.
Get priceA simple ideal Rankine cycle with water as the | Chegg.com. Transcribed image text: A simple ideal Rankine cycle with water as the working fluid operates between the pressure limits of 15 MPa in the boiler and 100 kPa in the condenser. Steam leaves the turbine as a saturated mixture with a quality x = 0.85. 400 kg/s of steam flow through the cycle.
Get priceA steam power plant operates between a boiler pressure of 52 bar and a condenser pressure of 0.045 bar. Calculate for these limits the cycle efficiency for a Carnot cycle using wet steam. NB:Answer in decimal and not percentage to 4 decimal places.
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An electric power plant that would make use of the temperature gradient in the ocean has been proposed.The system is to operate between 2 0. 0 0 C (surface-water temperature) and 5. 0 0 0 C (water temperature at a depth of about 1 km). (a) What is the maximum efficiency of such a …
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May 22, 2019 · The thermal power plants are currently designed to operate on the supercritical Rankine cycle (i.e. with steam pressures exceeding the critical pressure of water 22.1 MPa, and turbine inlet temperatures exceeding 600 °C). Supercritical fossil fuel power plants, that are operated at supercritical pressure, have efficiencies around 43%.
Get priceSep 17, 2017 · Thermodynamic assignment 2. 1. Thermodynamics Assignment 02 Name: Dilshan K.M.G.L. Index Number: 150131A. 2. Question 1 A steam power plant operates between a boiler pressure of 40 bar and a condenser pressure of 0.04 bar. Calculate the cycle efficiency, work ratio and specific stream consumption for I. Carnot cycle P1 = P2 = 40 bar = 4000 kPa
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A steam power plant operates on a simple ideal Rankine cycle between the pressure limits of 9 Mpa and 50 kPa. Superheated vapors enter the turbine at 500 oC. Determine for the cycle: a) The rate of heat supplied to the boiler per kg of steam flow. b) The net power output per kg of steam flow through the boiler. c) The thermal efficiency.
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Solution for A steam power plant operates between a boiler pressure of 62 bar and a condenser pressure of 0.055 bar. Calculate for these limits the cycle…
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::Q1:: A steam boiler on a test generates 885,000 lb of steam in a 4-hour period. The average steam pressure is 400 psia, the average steam temperature is 700 F, and the average temperature of the feedwater supplied to the boiler is 280 F. If the boiler effeciency for the period is 82.5%, and if the coal has a heating value of 13,850 Btu per lb as fired, find the average amount of coal …
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10-20 A simple Rankme cycle with water as the working fluid operates between the specified pressure Imllts. The rate of heat addltlon m the boiler, the power input to the pumps, the net power, and the thermal efficiency of the cycle are to be Assumptions 1 Steady operating conditions exist. 2 Kinetic and potential energy changes are negligible.
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For a thermal power plant the range of pressure may vary from 10 kg/cm2 to super critical pressures and the range of temperature may be from 250°C to 650°C. 3.1.1 Essentials of Steam Power Plant Equipment: A steam power plant must have following equipment: (a) A furnace to burn the fuel. (b) Boiler or boiler containing water.
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See Page 1. Example 8.1 A steam power plant operates between a boiler pressure of 42 bar and a condenser pressure of 0.035 bar. Calculate for these limits the thermal efficiency, the work ratio and the specific steam consumption: a) For a Carnot cycle using wet steam b) For a Rankine cycle with dry saturated steam at entry to the turbine c) For
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superheating the steam in the boiler and condensing it completely in the condenser. This cycle that results is the Rankine cycle, which is the ideal cycle for vapor power plants. The construct of power plant and T-s diagram is shown in Figures 2.2(a) and (b). (a) 2 q (b) Figure 2.2 : Rankine Cycle 1 4 3 2 T s 4 3 T 2 s Boiler Turbi ne Condenser
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