User Account

All Pages

Thermodynamics, engineering, Other Engineering

Assignment Help:
A methane-fired microturbine based on the regenerative gas turbine cycle employs a centrifugal compressor with a polytropic efficiency of 85%, a radial inflow turbine with a polytropic efficiency of 87% and a recuperator with an effectiveness of 0.75. The pres-sure loss is 10% divided equally between the high- and low-pressure sides. To avoid the use of exotic materials in the hot section, the combustor was limited to an equiva-lence ratio of 0.2, with a resulting combustor exit temperature of 1200K when the com-pressor inlet temperature is 298K. The working fluid can be assumed to be air with k = 1.4 with a cp = 1.025 kJ/kg-K in the compressor, 1.050 kJ/kg-K on both sides of the re-cuperator, and 1.075 kJ/kg-K in the combustor and turbine. The fuel is available as a gas at atmospheric pressure and 298K and must be pumped to a pressure that is 10% higher than the combustor exit pressure using a small compressor whose adiabatic efficiency is 60% (this is parasitic power to be subtracted from engine output). The specific heat, cp, of methane is 2.35 kJ/kg-K, and its k = 1.28. The combined mechanical and electrical efficiency of the turbine and the electric generator is 90%. If the compressor pressure ratio is 5:1, and the net power output is 500 kWe, compute the overall efficiency of the turbo-generator set, accounting for mechanical, electric and parasitic losses. Calculate the air and fuel flow rates under these conditions and estimate the exergy efficiency of the combustor, accounting for the methane pumping parasitic power.

Related Discussions:- Thermodynamics, engineering

Material science, Ask question #Minimum lkjhbi mbj jhb uy 100 words accept...

Ask question #Minimum lkjhbi mbj jhb uy 100 words accepted#

modified internal rate of return mirr, MODIFIED INTERNAL RATE OF RETURN (M...

MODIFIED INTERNAL RATE OF RETURN (MIRR) This method is a financial analysis to rank alternative investment projects of equal size. This method is modification of internal rate of r

Digit, Design the counters for the digital clock Minimum 100 words accepted...

Design the counters for the digital clock Minimum 100 words accepted#

Automatic interior car lights control, hi there, i need to know if its poss...

hi there, i need to know if its possible to create a circuit of automatic interior car lights control

Flight fine pitch stop failure, FLIGHT FINE PITCH STOP FAILURE (OVERSPEED) ...

FLIGHT FINE PITCH STOP FAILURE (OVERSPEED) An overspeed is prevented by an automatic coarsening device. A switch mounted on the Hub closes when the blade angle is below Flig

Oscilloscope probes, Direct probe,isolation probe,high impedence probe,acti...

Direct probe,isolation probe,high impedence probe,active probe,current probe

Bravis lattice, Bravis lattice or Bravis crystal system: The ideas of space...

Bravis lattice or Bravis crystal system: The ideas of space lattice was introduced by Bravis in 1990.According to this there are 14 possible types of space lattices in the seven ba

Chromizing, advantages and disadvantages

advantages and disadvantages

Shelf list filing - library management, Shelf List Filing   Shelf list ...

Shelf List Filing   Shelf list reflects the arrangement of documents in the library. That is to say, the classificatory arrangement of the documents in a library can be seen th

Mass Transfer, construction and working of counter flow tray

construction and working of counter flow tray

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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