Determine the systems thermal efficiency

Assignment Help Mechanical Engineering
Reference no: EM13701650

Air enters a three-stage gas turbine at 100 kPa and 17 degree Celsius. This system uses a regenerator as well as reheating and interfolding. The pressure ratio across each compressor is 14.16; 300 kJ/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20 degrees Celsius. Determine the system's thermal efficiency.

Assume isentropic expansions for all compressor and the turbine stages and use constant specific heats at room temperature

Reference no: EM13701650

Questions Cloud

Calculate the analysis of the wet product of combustion : In the actual combustion of benzene in an engine the A/F ratio was 12/1. Calculate the analysis of the wet product of combustion. A thermometer inserted into an air steam flowing at 33.5 m/s records a temperature of 15 degree Celsius; the static pres..
Design a suitable mechanism to hold the tube : Design a suitable mechanism to hold the tube within its range of adjustment. Identify loads acting on the mechanism and perform necessary stress calculations to size various parts.
Fastening the hook to the wire causes stress concentrations : A crane has a loading hook that is hanging in a steel wire. The allowable normal tensile stress in the wire gives an allowable force of 100,000 N. Estimate the safety factor that should be used.
Presence or abseabsence of pyridene : What is the difference in the stereo chemistry of the reaction when darzen process is carried out in the presence or abseabsence of pyridene
Determine the systems thermal efficiency : Air enters a three-stage gas turbine at 100 kPa and 17 degree Celsius. This system uses a regenerator as well as reheating and interfolding. The pressure ratio across each compressor is 14.16; 300 kJ/kg of heat are added to the air in each combustion..
Determine the new velocity at the nozzle exit : Air at 22 kPa, 220K and 250 m/s enters a turbojet engine in flight at an altitude of 10,000m. The diffusor slows the air down to a very low speed relative to its inlet. The pressure ratio across the compressor is 12. The turbine inlet temperature is ..
Instantaneous braking force developed for initial velocities : A 1200 kg car is travelling at a high rate of speed (V0) as it reaches the summit of a small hill that can be approximated by the equation y=1.25sin(0.3x)+cos (0.07x)-5 from x= 0 to 50m. At the summit of the hill a deer runs in front of the car, and ..
What is the optimal solution if the cost constraint : The company also wants to limit its fixed annual costs to under $900,000. The company wants to build the minimum number of distribution centers possible.
Determine the power developed by the turbine : Water vapor enters a turbine operating at steady state at 1000°F, 140 lbf/in2, with a volumetric flow rate of 12.6 ft3 /s, and expands isentropic ally to 2 lbf/in2. Determine the power developed by the turbine, in hp. Ignore kinetic and potential ene..

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  The tube surface temperaure is maintained at 60 f air exits

air at 1 atm 90f and 8 fts enters a thin-walled tube of 4-inch diameter. the tube surface temperaure is maintained at

  A shaft with a diameter of 100 mm rotates at 1500 rpm a

a shaft with a diameter of 100 mm rotates at 1500 rpm. a fluid-film bearing is designed to support a 5 kn load. assume

  Determine the change in the rate at which the following

pressurized water pin 10 bar tin 110 deg c enters the bottom of an l 10-m-long vertical tube of diameter d 100 mm

  Calculate the force necessary to accelerate a 20 kg 400mm

calculate the force necessary to accelerate a 20 kg 400mm diameter sphere which is at rest under water at the rate of 5

  The load at point bis not allowed to swing more than 4 m

the crane shown below consists of a 10 m swinging arm that is pinned at point a in the horizontal axis. the load at

  Develop a supplemental heat schedule as a function of the

the heat supplied by a heat pump used to maintain a buildings temperature is often supplemented by another source of

  Knowing that the rocket is fired vertically from the ground

a rocket weighs 2600 lb including 2200 lb of fuel which is consumed at a rate of 25 lbs and ejected with a relative

  Use the perfomance characteristics of the marine propeller

total power required to overcome viscous resistance and wave drag is 11.4 mw. use the perfomance characteristics of the

  How much energy must be added as heat to bring the water to

three kg of water in a piston-cylinder apparatus is initially in the saturated liquid state at 0.6 mpa. energy is added

  Determine the mass flow rate

At the exit, the pressure is 113 kPa and the temperature is 69 degrees C. Determine the mass flow rate, the exit velocity and the area of the exit.

  Air in a piston-cylinder assembly undergoes a process from

air in a piston-cylinder assembly undergoes a process from state 1 where t1 300 k p1 100 kpa to state 2 where t2500 k

  Graph all three first-dervative finite difference

consider the function fxx3-2x4 on the interval -22 with h0.25. use the forward backward and centered finite difference

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