Sketch the t-s diagram for the cycle

Assignment Help Mechanical Engineering
Reference no: EM13212472

A gas-turbine power plant operates on the simple Brayton cycle between the pressure limits of 100 and 800 kPa. Air enters the compressor at 30oC and leaves at 330oC at a mass flow rate of 200 kg/s. The maximum cycle temperature is 1400 K. During operation of the cycle, the net power output is measured experimentally to be 60 MW. Assume constant properties for air at 300 K with cv = 0.718 kJ/kg.K, cp = 1.005kJ/kg.K, R = 0.287 kJ/kg.K, k = 1.4.

(a) Sketch the T-s diagram for the cycle (put labels and appropriate information)

(b) Determine the isentropic efficiency of the turbine for these operating conditions

(c) Determine the cycle thermal efficiency

(d) Determine the rate of entropy generation (in kW/K) in the turbine. Assume there is no heat loss.

 

Reference no: EM13212472

Questions Cloud

Calculate the time rate of change : Calculate the time rate of change dHB/dt of angular momentum about point B when the particle passes the bottom of the guide at C.
What is the probability that attendance is greater : The attendance at baseball games at a certain stadium is normally distributed, with a mean of 44,000 and a standard deviation of 2500. For any given game: a) What is the probability that attendance is greater than 46,000 b) What is the probability ..
Compute the irr for project : Compute the IRR for this project. How many IRRs are there? Using the IRR decision rule, should the company accept the project? What's going on here?
By what percentage did gdp decline in the fourth quarter : According to the News on page 162 : Economy: Sharpest Decline in 26 Years The U.S. economy suffered its biggest slowdown in 26 years in the last three months of 2008, according to the government's first reading about the fourth quarter released Fr..
Sketch the t-s diagram for the cycle : Sketch the T-s diagram for the cycle (put labels and appropriate information)
What is lowest amount of money that you would accepting : Imagine that you face the following choice. You can accept a guaranteed loss of $750 or accept a stylized risk. The outcome of the stylized risk is determined by the toss of a fair coin. If heads comes up, you lose $525.
What interpretation would you give to the exponent for r : an estimate of the demand function for household furniture produced the folloing results: F= 0.0036Y1.08RR0.16p-0.48 r(2)=0.996 where F= furniture expenditures per household Y = disposible personal income per household R = value of private residen..
What is the temperature at the center : Fireclay brick of dimensions 0.06 m x 0.09 m x 0.20 m is removed from a kiln at 1600 K and cooled in air at 40oC with h=50 W/m2/K. What is the temperature at the center and at the corners of the brick after 50 minutes of cooling?
What is the required actual mechanical advantage : An Industrial water shutoff valve is designed to operate with 40lbs of force and will encounter 150lbs of resistance force applied to a 2in diameter axle. What is the required actual mechanical advantage of the system?

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Find the needed length of the heated section

Find the needed length of the heated section of the tube and find the temperature of the water when it exits the heated section of the tube.

  The thermal efficiency of the cycle and the net specific

Determine the thermal efficiency of the cycle and the net specific work. Assume each turbine stage isentropic efficiency to be 99% and assume the FWH is open.

  Alternative methods for casting the concrete for the wall

Compare the time and cost of using the following three alternative methods for casting the concrete for the wall: 1) direct chute 2) pumped 3) crane and bucket.

  The effect of fluid cooling

Write a  literature review and the title is "the effect of fluid cooling on the performance of building integrated photovoltaic thermal systems. Using some BIPVT prototypes measure their thermal and electrical output and dtermine their effectiveness"

  Write down the truth table and draw a logic diagram

Prepare a 3-input, 5 bit multiplexer that fits in a 24-pin IC package. Write the truth table and draw a logic diagram and logic symbol for the multiplexer.

  What tube diameter is required for the model

What tube diameter is required for the model if dynamic similarity is to be maintained between model and prototype?

  Determine the flight angle that maximizes the flow rate

The die characteristic is Q_x = 0.0015p where p is the head pressure in psi. Determine the flight angle that maximizes the flow rate Q_x and graph it.

  Explain the effect on temperature and density of air

The effect on temperature and density of air under adiabatic compression, Air is going through a compressor

  What input voltage will be computed by the adc

A successive approximation ADC has 4 bits and a reference voltage of 10 V. If the input voltage is 2.8 V, describe each step the ADC undergoes to determine the value of the 4 bits. What input voltage will be computed by the ADC?

  Determine the resultant of the three forces

Determine the resultant of the three forces F1 = 2.0i + 3.3j - 2.6k; F2 = - i + 5.2j - 2.9k; and F3 = 8.3i - 6.6j + 5.8k, which are concurrent at the point (2, 2, -5.). The forces are in Newton's and the distances are in meters.

  Find the safe applied torque that can be transmitted

Find the safe applied torque that can be transmitted by the shaft ABCD, if the maximum shear stress in the hollow section is 47 MPa and G = 82.5 GPa.

  What is the actual mechanical advantage of the system

A first class lever in static equilibruim has a 50 lb resistance force and 15 lb effort force. The lever's effort force is located 4 ft from the fulcrum. What is the actual mechanical advantage of the system?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd