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

Capital management solutions, Objective of corporate financing Corporat...

Objective of corporate financing Corporate finance control is a division of financial that refers to the control of money of an organization. The attention of corporate financi

Mergers Acquisition Pooling of interests method, Mergers Acquisition Merge...

Mergers Acquisition Mergers and acquisitions involve complex accounting treatment a merger, defined as amalgamation in India, involves the absorption of the target company by the

Active clearance control system, Active clearance control system The sy...

Active clearance control system The system provides fan discharge air for cooling the core compartment and the low-pressure turbine case. At low altitudes the core engine requ

Case law on evaluatig credit requests, This case has been framed in order t...

This case has been framed in order to test the skills in evaluating a credit request and reaching a correct decision. Perluence International is large manufacturer of petroleum and

Case Let, This case has been framed in order to test the skills in evaluati...

This case has been framed in order to test the skills in evaluating a credit request and reaching a correct decision. Perluence International is large manufacturer of petroleum and

Trash to steam plant in Baltimore, hi i need develop and simulate in matlab...

hi i need develop and simulate in matlab model of trash to steamp lant in Baltimore

Inversion circle, what do you understand by inversion circle?

what do you understand by inversion circle?

The compression after impact test, This Compression After Impact (CAI) test...

This Compression After Impact (CAI) test fixture was developed by the Boeing Company. The specimen, typically, but not necessarily, a quasi-isotropic laminate, is 6" long, 4" wide,

Metallurgical engineering, the amount of cold working a metal can withstand...

the amount of cold working a metal can withstand

Negative equity, An accountant says that your firm has negative equity so ...

An accountant says that your firm has negative equity so the firm is bankrupt. discuss ?

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