EVALUATION OF IRREVERSIBILITY ANALYSIS FOR DIFFERENT COAL TYPES OF A THERMAL POWER PLANT

Öz

In this study, first law (energy conservation) and second law (exergy) analyzes of thermodynamics were performed for a thermal power plant. It is very important to perform energy and exergy analyzes in industrial plants. These analyzes can provide guidance on improving energy efficiency and recycling waste energy. For these analyses, coals with different contents, available in nine different countries, were considered. According to the analysis, the highest first law efficiency was determined as 53.61% in the second type of coal. The second highest law efficiency was determined as 46.67% in the 6th coal type. Environmental Destruction Index and Sustainability Index values were determined and it was seen that, the highest EDI value was obtained in the 2nd coal type and the highest SI value was obtained in the 6th coal type. According to this study, the efficiency of the 6th coal type, which has the highest second law efficiency, was observed.

Anahtar Kelimeler

• coal
• energy
• exergy
• irreversibility
• thermal power plant

Kaynakça

1. O. J. Khaleel, F. Basim Ismail, T. Khalil Ibrahim, and S. H. bin Abu Hassan, “Energy and exergy analysis of the steam power plants: A comprehensive review on the Classification, Development, Improvements, and configurations,” Ain Shams Eng. J., Nov. 2021, doi: 10.1016/J.ASEJ.2021.11.009.
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3. H. Y. Wang, L. L. Zhao, Q. T. Zhou, Z. G. Xu, and H. T. Kim, “Exergy analysis on the irreversibility of rotary air preheater in thermal power plant,” Energy, vol. 33, no. 4, pp. 647–656, Apr. 2008.