Mathematical modelling and optimisation of lignite and wheat straw co-combustion in 350 MWe boiler furnace
Samo za registrovane korisnike
2020
Autori
Milićević, AleksandarBelošević, Srđan
Crnomarković, Nenad Đ.
Tomanović, Ivan D.
Tucaković, Dragan R.
Članak u časopisu (Objavljena verzija)
,
© 2019 Elsevier B.V.
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
In this paper pulverised lignite-fired 350 MWe boiler furnace is selected for numerical simulations performed by using in-house developed computer code to deepen understanding of complex processes during direct co-firing with wheat straw. The CFD code is significantly upgraded to accommodate simulation of lignite and wheat straw particle reactions and interactions with gas phase, and to allow analysis of particle behavior under real conditions inside the furnace. Parametric analysis is done with emphasis on the thermal share, size and shape of biomass particle, method of biomass feeding into the furnace and the fuel distribution over the burner tiers. In the most favorable co-firing case (with 10% of wheat straw thermal ratio and particle diameter of 500 μm), the higher furnace exit gas temperature for 8 ˚C and lower NOx emission of 18.2% are achieved, compared with pure lignite combustion case. The optimal co-firing case provides relatively low percentage of wheat straw particles fall...ing into the hopper (9.57%) and relatively high mass burnout of biomass particles at the furnace outlet (91.81%). Non-spherical shape of wheat straw particles is found to affect the fuel trajectories and flame significantly. The results of parametric analysis could support implementation of biomass co-firing technology in existing coal-fired power plants, to increase energy efficiency and mitigate environmental pollutants. © 2019 Elsevier Ltd
Ključne reči:
Mathematical modelling / Pulverised coal / Co-combustion / Biomass / Numerical study / Utility steam boilerIzvor:
Applied Energy, 2020, 260, 114206-Finansiranje / projekti:
- Povećanje energetske i ekološke efikasnosti procesa u ložištu za ugljeni prah i optimizacija izlazne grejne površine energetskog parnog kotla primenom sopstvenih softverskih alata (RS-MESTD-Technological Development (TD or TR)-33018)
DOI: 10.1016/j.apenergy.2019.114206
ISSN: 0306-2619
WoS: 000515108700083
Scopus: 2-s2.0-85077222376
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Milićević, Aleksandar AU - Belošević, Srđan AU - Crnomarković, Nenad Đ. AU - Tomanović, Ivan D. AU - Tucaković, Dragan R. PY - 2020 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8785 AB - In this paper pulverised lignite-fired 350 MWe boiler furnace is selected for numerical simulations performed by using in-house developed computer code to deepen understanding of complex processes during direct co-firing with wheat straw. The CFD code is significantly upgraded to accommodate simulation of lignite and wheat straw particle reactions and interactions with gas phase, and to allow analysis of particle behavior under real conditions inside the furnace. Parametric analysis is done with emphasis on the thermal share, size and shape of biomass particle, method of biomass feeding into the furnace and the fuel distribution over the burner tiers. In the most favorable co-firing case (with 10% of wheat straw thermal ratio and particle diameter of 500 μm), the higher furnace exit gas temperature for 8 ˚C and lower NOx emission of 18.2% are achieved, compared with pure lignite combustion case. The optimal co-firing case provides relatively low percentage of wheat straw particles falling into the hopper (9.57%) and relatively high mass burnout of biomass particles at the furnace outlet (91.81%). Non-spherical shape of wheat straw particles is found to affect the fuel trajectories and flame significantly. The results of parametric analysis could support implementation of biomass co-firing technology in existing coal-fired power plants, to increase energy efficiency and mitigate environmental pollutants. © 2019 Elsevier Ltd T2 - Applied Energy T1 - Mathematical modelling and optimisation of lignite and wheat straw co-combustion in 350 MWe boiler furnace VL - 260 SP - 114206 DO - 10.1016/j.apenergy.2019.114206 ER -
@article{ author = "Milićević, Aleksandar and Belošević, Srđan and Crnomarković, Nenad Đ. and Tomanović, Ivan D. and Tucaković, Dragan R.", year = "2020", abstract = "In this paper pulverised lignite-fired 350 MWe boiler furnace is selected for numerical simulations performed by using in-house developed computer code to deepen understanding of complex processes during direct co-firing with wheat straw. The CFD code is significantly upgraded to accommodate simulation of lignite and wheat straw particle reactions and interactions with gas phase, and to allow analysis of particle behavior under real conditions inside the furnace. Parametric analysis is done with emphasis on the thermal share, size and shape of biomass particle, method of biomass feeding into the furnace and the fuel distribution over the burner tiers. In the most favorable co-firing case (with 10% of wheat straw thermal ratio and particle diameter of 500 μm), the higher furnace exit gas temperature for 8 ˚C and lower NOx emission of 18.2% are achieved, compared with pure lignite combustion case. The optimal co-firing case provides relatively low percentage of wheat straw particles falling into the hopper (9.57%) and relatively high mass burnout of biomass particles at the furnace outlet (91.81%). Non-spherical shape of wheat straw particles is found to affect the fuel trajectories and flame significantly. The results of parametric analysis could support implementation of biomass co-firing technology in existing coal-fired power plants, to increase energy efficiency and mitigate environmental pollutants. © 2019 Elsevier Ltd", journal = "Applied Energy", title = "Mathematical modelling and optimisation of lignite and wheat straw co-combustion in 350 MWe boiler furnace", volume = "260", pages = "114206", doi = "10.1016/j.apenergy.2019.114206" }
Milićević, A., Belošević, S., Crnomarković, N. Đ., Tomanović, I. D.,& Tucaković, D. R.. (2020). Mathematical modelling and optimisation of lignite and wheat straw co-combustion in 350 MWe boiler furnace. in Applied Energy, 260, 114206. https://doi.org/10.1016/j.apenergy.2019.114206
Milićević A, Belošević S, Crnomarković NĐ, Tomanović ID, Tucaković DR. Mathematical modelling and optimisation of lignite and wheat straw co-combustion in 350 MWe boiler furnace. in Applied Energy. 2020;260:114206. doi:10.1016/j.apenergy.2019.114206 .
Milićević, Aleksandar, Belošević, Srđan, Crnomarković, Nenad Đ., Tomanović, Ivan D., Tucaković, Dragan R., "Mathematical modelling and optimisation of lignite and wheat straw co-combustion in 350 MWe boiler furnace" in Applied Energy, 260 (2020):114206, https://doi.org/10.1016/j.apenergy.2019.114206 . .