**Problem Statement:**Steam at 3 MPa and 400°C is expanded to 30 kPa in an adiabatic turbine with an isentropic efficiency of 92 percent. Determine the power produced by this turbine, in kilowatts, when the mass flow rate is 2.8 kg/s. Use steam tables.The power produced by the turbine is **725.52 kW**.**Explanation:**This problem involves calculating the power output of a steam turbine. The steam expands from high pressure and temperature to a lower pressure, and you are given the isentropic efficiency, which relates real-world performance to idealized calculations. By using steam tables, specific enthalpy values at different states can be found to perform this calculation. This setting is typical in thermodynamics courses in engineering and energy systems.

The inlet pressure of steam, P1=3MPaThe inlet temperature of steam, T1=400The exit pressure of the…

Steam at 3 MPa and 400°C is expanded to 30 kPa in an adiabatic turbine with an isentropic efficiency of 92 percent. Determine the power produced by this turbine, in kilowatts, when the mass flow rate is 2.8 kg/s. Use steam tables. The power produced by the turbine is 725.52 kW.

Steam at 3 MPa and 400°C is expanded to 30 kPa in an adiabatic turbine with an isentropic efficiency of 92 percent. Determine the power produced by this turbine, in kilowatts, when the mass flow rate is 2.8 kg/s. Use steam tables. The power produced by the turbine is 725.52 kW.

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

See similar textbooks

Related questions

Q: Air is compressed by an adiabatic compressor from 95 kPa and 27°C to 600 kPa and 277°C. Assume…

Q: 3. Steam enters an adiabatic turbine at 4MPA and 350°C and expands to 75 kPa with an isentropic…

Q: Steam enters an adiabatic turbine at 1 MPa and 300°C and leaves at 100 kPa as saturated steam. The…

Q: The adiabatic compressor in a refrigerator compresses saturated R-134a vapor at -10.0°F to 200 psia.…

Q: Steam at 3 Mpa and 450 oC is expanded to 40 kPa in an adiabatic turbine with an isentropic…

Q: The power output of an adiabatic turbine is 6.1 MW. Steam at a rate of 7 kg/s enters the turbine at…

Q: A turbine takes in steam at 550 degrees Celsius and 15 MPa and releases steam at 250 degrees Celcius…

Q: Steam enters an adiabatic turbine at 8 MPa and 500°C at a rate of 3.1 kg/s and leaves at 10 kPa. If…

A: P1 = 8 MPaT1 = 500°C P2 = 10 kPa m = 3.1 kg/sW = 2.5 MW = 2.5 x 103 kWT2 =?

Q: Air is compressed in an adiabatic compressor from 75 psia and 660 R to 290 psia and 1320 R.…

A: Given Initial pressure, P1 = 55 psia Final pressure, P2 = 270 psia Find Isentropic efficiency

Q: Superheated steam enters the turbine of a steam power plant at 5 MPa and 450 ºC, and exits at 10…

A: Given:P1=5 MPaT1=450°CP2=10 KPaη=90%m=10 Kg/s

Q: Refrigerant-134a enters an adiabatic compressor as saturated vapor at 30 psia at a rate of 20 ft3…

A: The initial enthalpy and entropy of the refrigerant is The process of compression is isentropic;…

Q: Steam in an adiabatic turbine expands from 4 MPa and 450°C to 0.1 MPa with a flow rate of 6 kg / s.…

A: Given: Inlet condition of the steam,P1=4MPaT1=450°CExit condition of steam P2=0.1MPaMass flow rate…

Q: A turbine is operating steadily and connected to a generator to convert mechanical work to…

A: Solution: Inlet conditions Inlet Pressure P1=4.5MPa Inlet temperature T1=400°C From superheated…

Q: Steam enters an adiabatic turbine at 45 MPa and 840°C with a mass flow rate of 69 kg/s and leaves at…

A: Given: Initial Pressure P1=45MPa Initial temperature T1=840°C Isentropic efficiency =0.90 Solution:…

Q: Steam enters an adiabatic turbine at 8 MPa, 550°C, and 57 (m/s and leaves at 60 kPa, 150°C, and 140…

A: Given: Inlet pressure (P1)=8MPa Inlet temperature (T1)=550°C Exit pressure (P2)=60kPa Exit…

Q: Steam expands in a turbine steadily at a rate of 11.11 kg/s, entering at 8 MPa and 500°C and leaving…

A: The mass frow rate of the turbine, The inlet pressure to the turbine, (P1)=8 MPaThe inlet…

Q: 3. Steam enters an adiabatic turbine steadily at 8Mpa and 500C at a rate of Skg/s and leaves at…

Q: Steam enters an adiabatic nozzle at 3.5 MPa and 300°C with a low velocity and leaves at 1.6 MPa and…

A: Answer : Second law efficiency is the ratio of exergy destruction to the exergy at initial state and…

Q: Steam enters an adiabatic turbine at P1 MPa and T1°C with a mass flow rate of z kg/s and leaves at…

Q: Steam at a pressure of 1000 psia and 650 0F enters an adiabatic turbine and leaves at 65 psia. The…

Q: Steam enters an adiabatic turbine at 10 MPa and 400°C with a mass flow rate of 4.5 kg/s and leaves…

Q: An open feedwater heater heats the feedwater by mixing it with hot steam. Consider an electric power…

A: Solution: Given Data: ms=0.1 lbm/sPs=10 psiaTs=200oFmf=2 lbm/sPf,i=10 psiaTf,i=100oFPf,e=10…

Q: etermine the power produced by an adiabatic turbine if steam enters at 2 MPaa and 400 °C and leaves…

Q: Steam enters an adiabatic turbine at 400°C and 6 MPa at 56 L/s'. The working fluid leaves the…

A: Given:- T1=400°C P2=6 MPa T2=237°C P2=500 KPa To find:- a) Power output of the turbine b) Isentropic…

Q: Thermal dynamics Steam enters a turbine at 20kg/s, 900 degrees C and 8MPa. 20% of the steam is…

Q: At 3MPa and 400C, 2 kg/s steam flows into a turbine. It exits at 300kPa. The turbine has an…

Q: Q3: Steam enters an adiabatic turbine at 8 MPa, 550°C, and 15 m/s and leaves at 60 kPa, 150°C, and…

A: At state 1 P1=8MPa T1=550°C C1=13 m/s Using the superheated steam table h1=3521KJ/Kg S1=6.8778…

Q: Steam enters an adiabatic turbine at 4.5 MPa and 1000°C and leaves at a pressure of 100 kPa.…

Q: determine the isentropic effIcIENCY of the turbine and the mass flow rate of the steam flowing…

Q: Steam enters an adiabatic turbine steadily at 5 MPa and 500 °C and leaves at 100 kPa and 200 °C. The…

Q: d 80 m/s and leaves at 50 kPa, 1008C, and 14 e power output of the turbine is 5 MW, deter

A: GivenAt EntranceP1=6 MPa , T1=600°C, v1=80 m/sP2=50 kPa, T2=100°C, v2=140 m/sWout=5 MW Ts=25°C

Q: Steam enters the turbine of a simple vapor power plant with a pressure of 10 MPa and temperature of…

A: State 1: Pressure, P1= 10 MPa Temperature, T1= 580∘C State 2: Pressure, P2= 6 kPa

Q: Liquid water at 120 kPa enters a 7-kW pump where its pressure is raised to 6.2 MPa. If the elevation…

A: Given Data Power = 7000 W P1= 120 KPa. P2=6200 KPa v= 0.001 m3/Kg Elevation = 10m

Q: Air is compressed by an adiabatic compressor from 95 kPa and 27°C to 600 kPa and 277°C. Assuming…

Q: A turbine operates with superheated steam entering at 900°F and 1,100 psia with a mass flow rate of…

A: GivenT1=900oF=482.22oCP1=1100 psia =7.58 MPam=70 lbm/s=31.75 kg/sP2=5psia =34.47 KPaη=0.80

Q: Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 4 MPa,…

Q: Steam enters a turbine at 6 MPa and 450°C at a rate of 33 kg/s and exits at 50 kPa as saturated…

Q: Air is compressed in an adiabatic compressor from 55 psia and 660 R to 270 psia and 1200 R.…

A: Given Initial pressure, P1 = 55 psia Final pressure, P2 = 270 psia Find Isentropic efficiency

Q: Steam at a pressure of 1000 psia and 650 0F enters an adiabatic turbine and leaves at 75 psia. The…

Q: A gas turbine compressor unit receives 45.7 m3/min of air at 100kPa and 295K and compresses it in a…

Q: Steam in an adiabatic turbine expands at a pressure of 6 MPa and a temperature of 450 ° C to a…

A: At outlet 6 MPa, 450 ° C (Using superheated table) h1=3301.8 KJ/Kg 0.1 MPa (Using saturated table)…

Q: Steam at 7 MPa and 400°C enters a two-stage adiabatic turbine at a rate of 15 kg/s. Ten percent of…

A: Given : P1=7MPaT1=400°Cm = 15 kg/sP2=1.8 MPaP3=10 kPaη = 88%T∞=25°C

Q: Steam enters an adiabatic turbine at 2MPa and 250°C and expands to 25 kPa with an isentropic…

Q: A turbine takes in 550 degrees Celsius (13 MPa) steam and produces 1750 kW rate of work at 80% steam…

Q: Steam expands in a turbine steadily at a rate of 18,000 kg/h, entering at 7 MPa and 600°C and…

A: The values of enthalpy and entropy are taken from the steam table h1=3650.6…

Question

**Problem Statement:**

Steam at 3 MPa and 400°C is expanded to 30 kPa in an adiabatic turbine with an isentropic efficiency of 92 percent. Determine the power produced by this turbine, in kilowatts, when the mass flow rate is 2.8 kg/s. Use steam tables.

The power produced by the turbine is **725.52 kW**.

**Explanation:**

This problem involves calculating the power output of a steam turbine. The steam expands from high pressure and temperature to a lower pressure, and you are given the isentropic efficiency, which relates real-world performance to idealized calculations. By using steam tables, specific enthalpy values at different states can be found to perform this calculation.

This setting is typical in thermodynamics courses in engineering and energy systems.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Writing the given information.

VIEW

Step 2: Calculating the exit enthalpy of the steam

VIEW

Step 3: Calculation for the power produced by the turbine.

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 15 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Air is compressed by an adiabatic compressor from 95 kPa and 27°C to 600 kPa and 277°C. Assume variable specific heats and neglect the changes in kinetic and potential energies. Determine the isentropic efficiency of the compressor. Use the table containing the ideal-gas properties of air. The isentropic efficiency of the compressor is 0 %.
Steam enters an adiabatic turbine at 3000C and 400.0 kPa. Heat is transferred until the pressurereaches 100 kPa. Determine (a) the change of enthalpy; (b) the work; (c) the change of internalenergy.
Steam at 3 MPa and 400°C is expanded to 30 kPa in an adiabatic turbine with an isentropic efficiency of 92 percent. Determine the power produced by this turbine, in kW, when the mass flow rate is 2 kg/s.
Refrigerant-22 absorbs heat from a cooled space at 50°F as it flows through an evaporator of a refrigeration system. R-22 enters the evaporator at 10°F at a rate of 0.08 lbm/s with a quality of 0.3 and leaves as a saturated vapor at the same pressure. Determine the second-law efficiency of the evaporator. Take T0 = 77°F. The properties of R-22 at the inlet and exit of the evaporator are: h1 = 107.5 Btu/lbm, s1 = 0.2851 Btu/lbm·R, h2 = 172.1 Btu/ lbm, s2 = 0.4225 Btu/lbm·R.
Check image attached1
The compressors of a production facility maintain the compressed-air lines at a (gage) pressure of 700 kPa at 1400-m elevation, where the atmospheric pressure is 85.6 kPa. The average temperature of air is 15°C at the compressor inlet and 25°C in the compressed-air lines. The facility operates 4200 h/yr, and the average price of electricity is $0.10/kWh.
8 kg/s of R134a is condensed from 700 KPa and 70 °C to saturated liquid at 700 KPa in a water- cooled condenser. Water as compressed liquid enters the cooler at 15 °C and leaves at 25 °C. Determine the mass flow rate of the cooling water, in kg/s.
Devices can be combined to perform a variety of tasks. An adiabatic compressor, with air as the working fluid, is to be powered by an adiabatic steam turbine, which is also driving a generator. Steam enters the turbine at 12.5 MPa and 500 ∘C at a steady rate of 27.30 kg/s and exits at 10 kPa and a quality of 0.8710. Air enters the compressor at 98 kPa and 295.0 K K at a steady rate of 12.600 kg/s and exits at 1 MPa and 635.0 K. For air, MW=29.0 g/mol, Cp=3.5R. Note: The IUPAC sign convention for work is used. Work into the system has a positive value. What is the magnitude of the power delivered to the generator by the turbine? The answer needs to be in MW.
The compressor in a refrigerator compresses saturated R-134a vapor at 0°F to 200 psia. Calculate the work required by this compressor, in Btu/lbm, when the compression process is isentropic. Use the tables for R-134a. The work required by this compressor is Btu/lbm.
Air enters a compressor at 14.7 psia and 77°F and is compressed to 140 psia and 200°F. Determine the minimum work required for this compression, in Btu/lbm, with the same inlet and outlet states. Does the minimum work require an adiabatic compressor?
Refrigerant-134a is compressed steadily from the saturated vapor state at 120 kPa to 1.6 MPa and 60 °C at a rate of 0.27 kg/s. The compressor is losing heat at a rate of 1.6 kJ/s during compression. Determine the power input to the compressor. O10.0 kW 11.8 kW O 13.4 kW O 21.0 kW