Assessment of Influential Operational Parameters in the Mitigation of CO 2 Emissions in a Power Plant: Case Study in Portugal

Vítor Balanuta, Patrícia Baptista, Fernando Carreira, Gonçalo O. Duarte and Cláudia S.S.L. Casaca ()
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Vítor Balanuta: ISEL—Instituto Superior de Engenharia de Lisboa, Polytechnic University of Lisbon, 1959-007 Lisboa, Portugal
Patrícia Baptista: IN+, Center for Innovation, Technology and Policy Research—Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
Fernando Carreira: UniRE, ISEL—Instituto Superior de Engenharia de Lisboa, Polytechnic University of Lisbon, 1959-007 Lisboa, Portugal
Gonçalo O. Duarte: IN+, Center for Innovation, Technology and Policy Research—Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
Cláudia S.S.L. Casaca: CIMOSM, ISEL—Instituto Superior de Engenharia de Lisboa, Polytechnic University of Lisbon, 1959-007 Lisboa, Portugal

Clean Technol., 2024, vol. 6, issue 3, 1-12

Abstract: The European decarbonization goals and requirement for energy independence are mostly relying on intermittent renewable energy sources for electrification. A numerical model was developed to simulate the operation of a steam generator, allowing a study of the potential impacts of retrofitting existing coal-fired power plants to operate with biomass or coal–biomass mixtures on combustion parameters and CO 2 emissions. The results obtained using the operational parameters of the Sines power plant indicate that a mixture of 25% coal and 75% pine sawdust allow operation at λ = 1.8, demonstrating that a small amount of coal allows operation near the coal combustion parameters ( λ = 1.9). These conditions have the drawback of a reduction of 8.7% in adiabatic flame temperature but a significant reduction of 57.5% in CO 2 emissions, considering the biomass as carbon-neutral.

Keywords: greenhouse gas emissions; biomass; thermal power plant; retrofitting; decarbonization (search for similar items in EconPapers)
JEL-codes: Q2 Q3 Q4 Q5 (search for similar items in EconPapers)
Date: 2024
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