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

Light wave and matters, Expertsmind.com brings you unique solution in phy...

Expertsmind.com brings you unique solution in physics -          What is light? -            -          Light is an electromagnetic wave that also comes in "photons"

Petroleum Engineering project, I need help About the project I sent and it ...

I need help About the project I sent and it is the third time I am sending so please I really want help

In-plane shear tests for composite materials , The ideal test should provid...

The ideal test should provide a region of pure, uniform shear stress within the test sample. The most simple test is the tension test on the (+/-45°)ns sample, where n is greater

Engineering physics, when same music is played in veena and violin , we sha...

when same music is played in veena and violin , we shall hear the sound of

Solve problems using dc electrical principles, Electronics Engineering Assi...

Electronics Engineering Assignment# Solve problems using DC electrical principles 1.3 A 220 F capacitor is required to store 11mJ of energy. What voltage needs to appear

Commented carbides, Q. What are the commented carbides? How are they proces...

Q. What are the commented carbides? How are they processed? Ans. These are very important products of powder metallurgy and finds wide applications as cutting tools, wir

Alternative escape routes - means of escape, Alternative escape routes: ...

Alternative escape routes: Does everyone have access to the alternative routes or do some people have no choice about which way they go? Are all the escape routes

Depreciation Tax Calculation, Depreciation Calculation Two most popular me...

Depreciation Calculation Two most popular methods of charging depreciation are: straight line and diminishing balance or written-down value (WDV) methods. For reporting to the sha

Heat treatment of cast iron, how does a cast iron cooling curve look,effect...

how does a cast iron cooling curve look,effect of heating temp, duration also cooling rate

Financial leverage Multiplayer , How i can have the FLM if i dont have the ...

How i can have the FLM if i dont have the Total Assets or Shareholders Equity

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