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

Land serveying, list out the errors in lenier measurment

list out the errors in lenier measurment

Digtal electronics, Design a combinational logic circuit that will generate...

Design a combinational logic circuit that will generate the square off all the combinations of three bit binary number represented by A,B,C

Edc, Combination clipper

Combination clipper

Transistors, Transistors: The transistor can be a high or low resistanc...

Transistors: The transistor can be a high or low resistance device, hence the name, which is derived from TRANSfer resISTOR.  It is used in many switching and amplifier circ

Doble titration, object:THE NORMALITY OF STANDARD FAS SOLUTION(A)N/50.find ...

object:THE NORMALITY OF STANDARD FAS SOLUTION(A)N/50.find out the strenghth and normality of fas(b) using potasium permagnettetraoxide as intermidiate compound & self indicator

Parallel rationalisation of digital system, how to find cascade

how to find cascade

Physical significance of wave function , Wave function is a complex quantit...

Wave function is a complex quantity, which itself has no physical significance. But square of its magnitude gives the probability of finding a particle in a given volume of space a

Classification of lime, Explain the classification of lime

Explain the classification of lime

An essay on power train, Interior noise is basically airborne or structure-...

Interior noise is basically airborne or structure-borne. The excitation sources of vibratation and noise from engines can be divided as mechanical, combustion, and flow sources.

Cash flow statement, Cash flow statement is one of the three necessary repo...

Cash flow statement is one of the three necessary reporting & measurement systems for a company. The cash flow statement gives a third perspective alongside the profit & loss accou

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