Determination of the Sootblower Activation Moment for Biomass Co-Firing in a Pulverized Coal Furnace
Аутори
Crnomarković, Nenad Đ.Belošević, Srđan
Nemoda, Stevan
Tomanović, Ivan
Milićević, Aleksandar
Stojanović, Andrijana D.
Stupar, Goran
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The pulverized coal-fired furnaces are expected to use co-firing withbiomass for environmental reasons. Although the non-uniform ash depositsare formed on the furnace walls, the uniform deposits could be used for theanalysis of the furnace operation. The objective of this investigation wasdetermination of the uniform deposit thickness, used as a criterion forprediction of the sootblower activation moment in coal-biomass co-firing.The investigation comprised numerical simulations for uniform and nonuniform deposits to find the relative differences for the selected variablesthat were important for the sootblower activation: the mean wall fluxes andflame temperatures. The local thicknesses of the non-uniform deposits weredetermined by the gamma distribution for several mean and standarddeviation values using the inversion method. The thicknesses of the uniformdeposits were considered among the measures of central tendency: mode,mean, and median, of the non-uniform deposits. The mean was e...xpected toprovide the smallest relative differences, while the mode was excluded fromfurther consideration after analysis of its values. The median was found tobe better choice than the mean, as it provided smaller relative differences ofthe selected variables for the thick deposits, which were important for thesootblower activation. The method based on comparison of the uniformdeposits for coal firing and those for the co-firing with biomass wasproposed for the prediction of the sootblower activation moment. Themethod can be used for the selection of the operational regimes for coalbiomass co-firing.
Кључне речи:
Numerical investigation / Furnace / Ash deposit / Mean / Median / Mode / Standard deviationИзвор:
Thermal Science, 2022, 27, 1 Part B, 755-766Финансирање / пројекти:
- Ministry of Education, Science and Technological Development of the Republic of Serbia
DOI: 10.2298/TSCI220516149C
ISSN: 0354-9836
WoS: 000944615700039
Scopus: 2-s2.0-85150232608
Институција/група
VinčaTY - JOUR AU - Crnomarković, Nenad Đ. AU - Belošević, Srđan AU - Nemoda, Stevan AU - Tomanović, Ivan AU - Milićević, Aleksandar AU - Stojanović, Andrijana D. AU - Stupar, Goran PY - 2022 UR - https://vinar.vin.bg.ac.rs/handle/123456789/10754 AB - The pulverized coal-fired furnaces are expected to use co-firing withbiomass for environmental reasons. Although the non-uniform ash depositsare formed on the furnace walls, the uniform deposits could be used for theanalysis of the furnace operation. The objective of this investigation wasdetermination of the uniform deposit thickness, used as a criterion forprediction of the sootblower activation moment in coal-biomass co-firing.The investigation comprised numerical simulations for uniform and nonuniform deposits to find the relative differences for the selected variablesthat were important for the sootblower activation: the mean wall fluxes andflame temperatures. The local thicknesses of the non-uniform deposits weredetermined by the gamma distribution for several mean and standarddeviation values using the inversion method. The thicknesses of the uniformdeposits were considered among the measures of central tendency: mode,mean, and median, of the non-uniform deposits. The mean was expected toprovide the smallest relative differences, while the mode was excluded fromfurther consideration after analysis of its values. The median was found tobe better choice than the mean, as it provided smaller relative differences ofthe selected variables for the thick deposits, which were important for thesootblower activation. The method based on comparison of the uniformdeposits for coal firing and those for the co-firing with biomass wasproposed for the prediction of the sootblower activation moment. Themethod can be used for the selection of the operational regimes for coalbiomass co-firing. T2 - Thermal Science T1 - Determination of the Sootblower Activation Moment for Biomass Co-Firing in a Pulverized Coal Furnace VL - 27 IS - 1 Part B SP - 755 EP - 766 DO - 10.2298/TSCI220516149C ER -
@article{ author = "Crnomarković, Nenad Đ. and Belošević, Srđan and Nemoda, Stevan and Tomanović, Ivan and Milićević, Aleksandar and Stojanović, Andrijana D. and Stupar, Goran", year = "2022", abstract = "The pulverized coal-fired furnaces are expected to use co-firing withbiomass for environmental reasons. Although the non-uniform ash depositsare formed on the furnace walls, the uniform deposits could be used for theanalysis of the furnace operation. The objective of this investigation wasdetermination of the uniform deposit thickness, used as a criterion forprediction of the sootblower activation moment in coal-biomass co-firing.The investigation comprised numerical simulations for uniform and nonuniform deposits to find the relative differences for the selected variablesthat were important for the sootblower activation: the mean wall fluxes andflame temperatures. The local thicknesses of the non-uniform deposits weredetermined by the gamma distribution for several mean and standarddeviation values using the inversion method. The thicknesses of the uniformdeposits were considered among the measures of central tendency: mode,mean, and median, of the non-uniform deposits. The mean was expected toprovide the smallest relative differences, while the mode was excluded fromfurther consideration after analysis of its values. The median was found tobe better choice than the mean, as it provided smaller relative differences ofthe selected variables for the thick deposits, which were important for thesootblower activation. The method based on comparison of the uniformdeposits for coal firing and those for the co-firing with biomass wasproposed for the prediction of the sootblower activation moment. Themethod can be used for the selection of the operational regimes for coalbiomass co-firing.", journal = "Thermal Science", title = "Determination of the Sootblower Activation Moment for Biomass Co-Firing in a Pulverized Coal Furnace", volume = "27", number = "1 Part B", pages = "755-766", doi = "10.2298/TSCI220516149C" }
Crnomarković, N. Đ., Belošević, S., Nemoda, S., Tomanović, I., Milićević, A., Stojanović, A. D.,& Stupar, G.. (2022). Determination of the Sootblower Activation Moment for Biomass Co-Firing in a Pulverized Coal Furnace. in Thermal Science, 27(1 Part B), 755-766. https://doi.org/10.2298/TSCI220516149C
Crnomarković NĐ, Belošević S, Nemoda S, Tomanović I, Milićević A, Stojanović AD, Stupar G. Determination of the Sootblower Activation Moment for Biomass Co-Firing in a Pulverized Coal Furnace. in Thermal Science. 2022;27(1 Part B):755-766. doi:10.2298/TSCI220516149C .
Crnomarković, Nenad Đ., Belošević, Srđan, Nemoda, Stevan, Tomanović, Ivan, Milićević, Aleksandar, Stojanović, Andrijana D., Stupar, Goran, "Determination of the Sootblower Activation Moment for Biomass Co-Firing in a Pulverized Coal Furnace" in Thermal Science, 27, no. 1 Part B (2022):755-766, https://doi.org/10.2298/TSCI220516149C . .