Investigation of ash deposit formation on heat transfer surfaces of boilers using coals and biomass
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Combustion of coals and biomass in boiler furnaces leads to formation of fireside deposits on irradiated and convective surfaces. This problem is not a new one, but it became one of the main operational problems in boilers using low rank coal and some sort of biomass. In the paper presented are the results of research of ash deposit processes in laboratory conditions. An experimental furnace was used for these purposes. The experiments were performed on a tubular experimental furnace which ensures appropriate temperature and mass transfer conditions for physical and chemical transformations of the mineral matter of fuel as in real conditions. The main working parameters can be varied in wide ranges. The influence of grinding fineness, excess air and wall surface temperature was analysed. Also, an ash related problems during coal and biomass combustion was considered. Key empirical correlations for slagging and fouling were tested. Two types of Serbian coals (Kolubara and Kosovo) and se...veral biomasses were analysed. It was shown that many sorts of biomass and Kosovo coal have a great propensity to slagging and fouling.
Кључне речи:
boiler / combustion / fouling / slagging / ash deposit / criterion / coal / biomass / laboratory furnaceИзвор:
Thermal Science, 2019, 23, Suppl. 5, 1575-1586Финансирање / пројекти:
- Развој и унапређење технологија за енергетски ефикасно коришћење више форми пољопривредне и шумске биомасе на еколошки прихватљив начин, уз могућност когенерације (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-42011)
DOI: 10.2298/tsci180413285r
ISSN: 0354-9836
WoS: 000509489400015
Scopus: 2-s2.0-85084035187
Колекције
Институција/група
VinčaTY - JOUR AU - Repić, Branislav AU - Mladenović, Milica AU - Marinković, Ana PY - 2019 UR - https://vinar.vin.bg.ac.rs/handle/123456789/12772 AB - Combustion of coals and biomass in boiler furnaces leads to formation of fireside deposits on irradiated and convective surfaces. This problem is not a new one, but it became one of the main operational problems in boilers using low rank coal and some sort of biomass. In the paper presented are the results of research of ash deposit processes in laboratory conditions. An experimental furnace was used for these purposes. The experiments were performed on a tubular experimental furnace which ensures appropriate temperature and mass transfer conditions for physical and chemical transformations of the mineral matter of fuel as in real conditions. The main working parameters can be varied in wide ranges. The influence of grinding fineness, excess air and wall surface temperature was analysed. Also, an ash related problems during coal and biomass combustion was considered. Key empirical correlations for slagging and fouling were tested. Two types of Serbian coals (Kolubara and Kosovo) and several biomasses were analysed. It was shown that many sorts of biomass and Kosovo coal have a great propensity to slagging and fouling. T2 - Thermal Science T1 - Investigation of ash deposit formation on heat transfer surfaces of boilers using coals and biomass VL - 23 IS - Suppl. 5 SP - 1575 EP - 1586 DO - 10.2298/tsci180413285r ER -
@article{ author = "Repić, Branislav and Mladenović, Milica and Marinković, Ana", year = "2019", abstract = "Combustion of coals and biomass in boiler furnaces leads to formation of fireside deposits on irradiated and convective surfaces. This problem is not a new one, but it became one of the main operational problems in boilers using low rank coal and some sort of biomass. In the paper presented are the results of research of ash deposit processes in laboratory conditions. An experimental furnace was used for these purposes. The experiments were performed on a tubular experimental furnace which ensures appropriate temperature and mass transfer conditions for physical and chemical transformations of the mineral matter of fuel as in real conditions. The main working parameters can be varied in wide ranges. The influence of grinding fineness, excess air and wall surface temperature was analysed. Also, an ash related problems during coal and biomass combustion was considered. Key empirical correlations for slagging and fouling were tested. Two types of Serbian coals (Kolubara and Kosovo) and several biomasses were analysed. It was shown that many sorts of biomass and Kosovo coal have a great propensity to slagging and fouling.", journal = "Thermal Science", title = "Investigation of ash deposit formation on heat transfer surfaces of boilers using coals and biomass", volume = "23", number = "Suppl. 5", pages = "1575-1586", doi = "10.2298/tsci180413285r" }
Repić, B., Mladenović, M.,& Marinković, A.. (2019). Investigation of ash deposit formation on heat transfer surfaces of boilers using coals and biomass. in Thermal Science, 23(Suppl. 5), 1575-1586. https://doi.org/10.2298/tsci180413285r
Repić B, Mladenović M, Marinković A. Investigation of ash deposit formation on heat transfer surfaces of boilers using coals and biomass. in Thermal Science. 2019;23(Suppl. 5):1575-1586. doi:10.2298/tsci180413285r .
Repić, Branislav, Mladenović, Milica, Marinković, Ana, "Investigation of ash deposit formation on heat transfer surfaces of boilers using coals and biomass" in Thermal Science, 23, no. Suppl. 5 (2019):1575-1586, https://doi.org/10.2298/tsci180413285r . .