Sensitivity analysis of component efficiencies on performance of a gas turbine cogeneration system
by Ho-Young Kwak; Ki-Moon Kang
International Journal of Exergy (IJEX), Vol. 9, No. 3, 2011

Abstract: The performance of a 1000 kW gas-turbine cogeneration system was evaluated in terms of performance measures, such as net power, exergy efficiency of the system, and the unit costs of electricity and steam. The efficiencies of some components that have a significant affect on the performance were taken as physical variables. Sensitivity was evaluated by introducing parameters, defined as the ratio between the logarithmic differential of the performance measures and the logarithmic differential of the variables considered. The sensitivity parameters employed permit the ability to distinguish the variable that most significantly affects the performance of the system. The sensitivity analysis was found to be an efficient and convenient tool to evaluate the performance of the thermal systems.

Online publication date: Wed, 12-Oct-2011

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Exergy (IJEX):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com