Ecological coefficient of performance analysis and optimisation of gas turbines by using exergy analysis approach Online publication date: Mon, 22-Aug-2016
by Yasin Ust; Bahri Sahin; Mehmet Cakir
International Journal of Exergy (IJEX), Vol. 21, No. 1, 2016
Abstract: In this paper, a performance optimisation based on the exergetic/ecological coefficient of performance (ECOP) criterion has been performed for an irreversible simple, regenerative and cogeneration gas turbine systems by using exergy analysis method. The ECOP objective function defined as the ratio of exergy output to the loss rate of availability (or total exergy destruction). The obtained results were matched against those obtained using the power output and exergy efficiency. The design parameters under the optimal conditions have been derived numerically and their effects on the engine's performance have been discussed. The effect of the design parameters such as pressure ratio of compressor, cycle temperature ratio, isentropic efficiencies of turbine and compressor, effectiveness of the regenerator and pinch point temperature difference have also been investigated. The results obtained from this paper will provide guidance for the design of simple, regenerative and cogeneration gas turbine systems and can be used for selection of optimal design parameters.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
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:
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