An engineer in a steam power plant is tasked with calculating: a. The isentropic efficiency of the turbine b. The entropy generation of the turbine The following measurements were taken in the plants a. Upstream of the turbine: 6 MPa, 500c b. Between the turbine and the condenser: 20 kPa c. Flow rate at the condenser outlet: 3 kg/s d. Power output of the turbine: 2.6 MW Part 1: Sketch the power plant cycle showing where all data on the sketch Part 2. Show the inlet and outlet state points on the P-h diagram and on the T-s diagram for steam. Do the calculation to pin down the exit state point. Part 3. Calculate the isentropic efficiency Part 4. Calculate the entropy generation

An engineer in a steam power plant is tasked with calculating: a. The isentropic efficiency of the turbine b. The entropy generation of the turbine The following measurements were taken in the plants a. Upstream of the turbine: 6 MPa, 500c b. Between the turbine and the condenser: 20 kPa c. Flow rate at the condenser outlet: 3 kg/s d. Power output of the turbine: 2.6 MW Part 1: Sketch the power plant cycle showing where all data on the sketch Part 2. Show the inlet and outlet state points on the P-h diagram and on the T-s diagram for steam. Do the calculation to pin down the exit state point. Part 3. Calculate the isentropic efficiency Part 4. Calculate the entropy generation

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter45: Domestic Refrigerators And Freezers

Section: Chapter Questions

Problem 20RQ: Welded ______sealed compressors are normally used in household refrigerators.

See similar textbooks

Similar questions

31 - The temperature of the water vapor at the entrance to a turbine is 400ºC and the pressure is 4.5 MPa. The pressure of the saturated steam water at the turbine exit is 75 kPa and the mass flow rate is 41 kg/s. What is the turbine power? a) 21.69 MW B) 15.52 MW NS) 24.55 MW D) 18.96 MW TO) 22.28 MW
15m3/sofmoistairat45Cdb,31Cwbandpassesthroughairwasher. If the saturation efficiency is 90%. Determine the air state at the outlet of the air washer.
A certain Geothermal Power Plant shows that 1,700,000 kg/hr of pressurized ground water is available at 17.5MPa and 330°C. The water will be throttled to a pressure of 1.7MPa to produce wet steam and this mixture will be passed through a water separator to remove the water droplets so that saturated steam at 1.7MPa is available at the entrance of the Turbine. Other data are as follows: Discharge Pressure of turbine = 85kPa-Vac; Turbine Efficiency = 73%. Mechanical Loss = 2% of shaft power. Generator Efficiency = 95%. Determine the following: 1.The mass flow rate, in kg/min, of steam entering the turbine. a. 153,720 b . 76,858 c. 38,430 d. 19,200 e. 9,350 2. The maximum amount of power, in kW, that the plant can generate. a. 38,430 b. 19,200 c. 76,858 d. 9,350 e. 153,720
how do i calculate for a power plant, iv. The rate of heat rejection at the condenser; andv. Determine the rate of entropy generation in that power plant. Please provide example
A turbojet aircraft moving with a velocity of 790 ft/s at a runway where the pressure& temperature is found to be 14.7psi & 546R. The axial flow compressor provides apressure ratio of 14 to 1. Temperature at the turbine inlet is 2000R. The mass flowrate of airinside the engine is 133 lbm/s. Determine the following:a. T-S diagramb. Pressure & temperature at each statec. Thrust force (lbf)d. Propulsive power developed (BTU/min)e. Propulsive Efficiency
Draw schematic diagrams of a gas turbine system used for i. generating electricity with irreversible (actual) single stage compression, ii. two stages of irreversible expansion with reheat, and iii. a regenerator. Specify the relevant corner points of the process.
A turbine is driven by a system that enters the turbine at the ff. conditions: 500 kg/h, 44 atm, 450 deg C, 60 m/s linear speed. The steam exits at a point five meters below the inlet stream of the turbine with the following conditions: atmospheric pressure, 360 m/s speed. 70,000 W of shaft work is delivered by the turbine while 104 kilocalories/h heat is lost. Here are the questions to be answered: 1. Why is the value of Wexp 0? (Explain) 2. Given the above values, can you calculate the Wflow? (Yes/No)
Considering now the real case, where the turbine and feed pump are not isentropic, and the feed pump electric motor and the electric generator are not 100% efficient, Determine for unit mass flow rate of refrigerant circulated, the quantities (I) to (VI) as listed above, briefly contrasting the values calculated here and those calculated,
A flashed-steam geothermal power plant is located where underground hot water is available as saturated liquid at 725 kPa, The well head pressure is 670 kPa. The flashed steam enters a turbine at 645 kPa and expands to 15 kPa, when it is condensed. The flow rate from the well is 33.3 kg/s. Determine: Draw the T-S diagram The mass flow rate of steam in kg/s The power produce in KW The cooling water flow in kg/s if water is available at 25 oC and a 15°C rise is allowed through the condenser.
Isentropic efficiency of a turbine. If the process between the inlet state and the exit pressure.
Pls. answer thank you! The following performance data were generated by a gas turbine having intercooling: LP compressor inlet conditions of 14.7 psia and 520’’R: LP compressor isentropic discharge temperature, 743.8 R. compressor isentropic efficiency. 78 percent; HP.compressor inlet temperature, S20 degree R: HP compressor isentropic discharge temperature, 743.8 R. HP compressor isentropic efficiency, 82%; turbine inlet temperature, 2000R; and turbine isentropic efficiency, 90%, Calculate the net cycle work Btu/lb.
PROBLEM: A flashed-steam geothermal power plant is located where underground hot water is available as saturated liquid at 715 kPa, The well head pressure is 680 kPa. The flashed steam enters a turbine at 635 kPa and expands to 15 kPa, when it is condensed. The flow rate from the well is 35.3 kg/s. Determine: Draw the T-S diagram The mass flow rate of steam in kg/s The power produce in KW The cooling water flow in kg/s if water is available at 25 oC and a 15°C rise is allowed through the condenser.