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

Market value, Calculate the market value of a firm with total assests of $1...

Calculate the market value of a firm with total assests of $105 million and $50 million of 10% perpetual debt in the capital structure. The firm''s cost of equity is 14% on the $55

Fire suppression in aircraft , Fire suppression Typical fixed systems i...

Fire suppression Typical fixed systems in the types of aircraft for which fixed fire extinguisher systems are specified, it is usual for the extinguishant to be stored in the c

Outcomes of the fra - fire protection engineering, Outcomes of the FRA: ...

Outcomes of the FRA: When interpreting the outcomes of the FRA, NFPA 551 states that there are two ways in which the situation can be assessed to determine if it is acceptable

Assembly programme, program to work as xor gate

program to work as xor gate

Pn junction diode, what is the effect of temperature on pn junction diode o...

what is the effect of temperature on pn junction diode of component

Double cantilever beam, Double Cantilever Beam In the double cantilever...

Double Cantilever Beam In the double cantilever configuration, the ends of the sample are pulled apart, forcing a crack to propagate down the beam from one end. The figure belo

Case analysis, Construct the pro forma cash flow statements for Bloomington...

Construct the pro forma cash flow statements for Bloomington Clinics for five years into the future using the data given in the case plus the most likely growth estimates. a. Wha

Signal and system, if the response of a signal is h(t) then the cascading o...

if the response of a signal is h(t) then the cascading of two responses h1(t) and h2(t) is given by

Engineering seminar, Hey ,How are you? I need help in another class , its 1...

Hey ,How are you? I need help in another class , its 1 credit class ( Engineering seminar ), how to choose s.d in this class , , ,so we want describing our project which is ( radi

Robotics, how to become robotics engneer

how to become robotics engneer

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