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

Oscilloscope, Expertsmind.com brings you unique solution in electrical en...

Expertsmind.com brings you unique solution in electrical engineering   What is an Oscilloscope? An oscilloscope is a test instrument that displays a graph of voltage vers

Level indicator., i have a project to be completed, the project is, How to ...

i have a project to be completed, the project is, How to make a device which warns you when your water reservoir is full?? i want the name of device needed and the way to complete

Heat conduction on a cooling fin, on metlab

on metlab

Metallurgy assignment, Hi I need someone to help me to do a metallurgy assi...

Hi I need someone to help me to do a metallurgy assignment

Derivatives- vertical spread, Let C (K ) denote a European vanilla Call opt...

Let C (K ) denote a European vanilla Call option with strike price K . Assume that all options are identical except for strike price, and strike prices satisfy K ??Question 1 [5 m

Turbo shaft engines - aircraft engine , Turbo shaft engines : Gas turbi...

Turbo shaft engines : Gas turbine engines that deliver power through a shaft to operate something other than a propeller are referred to as turboshaft engines. In most cases th

Thermo electric thermometer, how thermoelecteric thermometer is contructed ...

how thermoelecteric thermometer is contructed and how it working

LTE, LTE

LTE

Capital Budgeting Project.., Assignment: You are interested in proposing a ...

Assignment: You are interested in proposing a new venture to the management of your company. Pertinent financial information is given below. BALANCE SHEET Cash 2,000,000 Accounts

Project, list 10 major project topic in agricultural engineering

list 10 major project topic in agricultural engineering

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