Performance analysis of a grate stoker coal-fired power plant based on the second law of thermodynamics Online publication date: Wed, 30-Sep-2015
by Abdel Khoodaruth; Isam H. Aljundi
International Journal of Exergy (IJEX), Vol. 18, No. 1, 2015
Abstract: In this paper, the performance of a coal-fired plant is assessed using exergy analysis. The plant components were analysed, the exergy destruction of each component was calculated, and the plant overall exergetic efficiency was determined. The boiler and steam turbine were found to have the highest exergy destruction. The percent exergy destruction in the boiler and turbine were 77% and 14.5% of the total exergy destruction; respectively. In addition, the exergy destruction of each component was simulated for different reference state temperatures and for different turbine inlet temperature. It was found that increasing the turbine inlet temperature will increase the efficiency of the power plant cycle up to 42% while the reference state temperature has no significant effect on the main conclusions of the analysis. Thus, implementation of higher temperature and pressure steam boiler will reduce the coal consumption, CO2 emission, and ash generation. The policy implications are also discussed.
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
Our Blog 
Follow us on Twitter 
Visit us on Facebook