Heat Rate and Efficiency Evaluation of Cofiring Biomass in CFB Boiler Coal-Fired Power Plant
Keywords:
Cofiring, Biomass, CFB Boiler, heat rate, efficiencyAbstract
Cofiring activity is an effort to carry out fuel switching in stages at the existing coal power generation. This is done to accelerate the implementation of renewable energy in 2025 by 23% according to the government's target. However, implementing biomass cofiring in coal power generation also has challenges, such as selecting the appropriate type of biomass, modifying the combustion system, and handling potential side effects such as the formation of slagging, fouling and agglomeration. This paper reviews the effect of cofiring on the CFB boiler performance and the effect on flue gases emissions. It is hoped that the results of this paper will provide a better understanding of the potential for utilizing biomass in electricity generation, as well as recommendations for larger scale implementation in the future. In addition, the effects of incorporating biomass, considering factors such as the type, proportion, particle size, and method of injection, as well as the burner's design and operational mode, on flame characteristics and emissions have been extensively studied. The findings indicated that the integrated system could offer a favorable approach to electricity generation. To enhance the overall efficiency of the process and minimize exergy destruction, an enhanced process integration technique was implemented.
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