Study on the Economic Impact Analysis of Coal and Sawdust Biomass Co-Firing Ratio Variations on the Performance of 400 MW PLTU using Cycle Tempo 5.0 Simulation

Firjatullah, Aksata Dimar (2025) Study on the Economic Impact Analysis of Coal and Sawdust Biomass Co-Firing Ratio Variations on the Performance of 400 MW PLTU using Cycle Tempo 5.0 Simulation. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

This research focuses on the use of biomass co-firing, specifically sawdust, in power generation to reduce greenhouse gas emissions. Co-firing is the process of mixing biomass with coal in combustion to reduce emissions. However, the effect depends on the type of biomass and the optimal mixture ratio. This study uses a 400 MW power plant with standard coal and varies the co-firing ratio with sawdust biomass which is 0%, 1%, 3%, 5%, 7%, and 10%. The objective is to analyse the impact of the co-firing ratio on the performance and economics of the plant, including self-use power (DPS), boiler efficiency, economic aspects, and community empowerment. The research method involves the use of Cycle-Tempo 5.0 software to generate analysis based on variations in the co-firing ratio. The results are expected to provide insights into optimising co-firing ratios in the context of plant performance and economics. The system displays an increase in DPS as the co-firing ratio rises when employing co-firing ratios between 0% and 10%. When coal is used at 100% of the power output, the DPS is 13742.082 kW; at 10% co-firing, it is 13926.852 kW. The efficiency value of the PLTU decreases and its NPHR value increases in response to an increase in DPS. The efficiency and NPHR values at 100% coal at HHV Coal 4200 are 36.6% and 2350.37 kcal/kWh, respectively. The efficiency and NPHR values at a co-firing ratio of 90% coal and 10% biomass are 36.60% and 2350.459 kcal/kWh, respectively. Because biomass is less expensive than coal, using sawdust biomass for cofiring can save fuel costs even though it decreases efficiency and increases NPHR. The computation shows that using cofiring with a 90% coal and 10% biomass ratio can result in savings of IDR 21,490,774,583 in a single month.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Biomass,Cycle Tempo,Sawdust
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ164 Power plants--Design and construction T Technology > TJ Mechanical engineering and machinery > TJ808 Renewable energy sources. Energy harvesting.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User:	Aksata Dimar Firjatullah
Date Deposited:	06 Feb 2025 03:41
Last Modified:	06 Feb 2025 03:41
URI:	http://repository.its.ac.id/id/eprint/118336

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