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Study of Ash Sintering Temperature and Ash Deposition Behavior during Co-Firing of Polish Bituminous Coal with Barley Straw Using Non-Standard Tests

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  • Karol Król

    (Department of Energy Conversion Engineering, Faculty of Mechanical and Power Engineering, Wroclaw University of Science and Technology, 27 Wybrzeże Wyspiańskiego Street, 50-370 Wroclaw, Poland)

  • Dorota Nowak-Woźny

    (Department of Energy Conversion Engineering, Faculty of Mechanical and Power Engineering, Wroclaw University of Science and Technology, 27 Wybrzeże Wyspiańskiego Street, 50-370 Wroclaw, Poland)

  • Wojciech Moroń

    (Department of Energy Conversion Engineering, Faculty of Mechanical and Power Engineering, Wroclaw University of Science and Technology, 27 Wybrzeże Wyspiańskiego Street, 50-370 Wroclaw, Poland)

Abstract

The need to reduce CO 2 emissions forces the use of biomass as a fuel in the conventional energy conversion process implemented by combustion. Burning biomass alone can be problematic because of the high potential for slugging and fouling on boiler heating surfaces. Therefore, co-firing of biomass with coal is used. This article presents the results of a study of biomass blends of barley, straw, and hard coal biomass from the Polish Makoszowy mine. The sintering of ash from biomass-coal blends was studied by experimental non-standard methods, such as the fracture stress and the pressure drop test. The results were confirmed with the result of thermodynamic modeling using FactSage 8.0 software. Additionally, ash deposition tests were performed in a 3.5 m boiler. The tests conducted showed a significant effect of the addition of biomass to hard coal on the formation of ash deposits on the heating surfaces of the boiler. In addition, the usefulness of non-standard methods in the assessment of the degree of fouling and slugging hazard was confirmed.

Suggested Citation

  • Karol Król & Dorota Nowak-Woźny & Wojciech Moroń, 2023. "Study of Ash Sintering Temperature and Ash Deposition Behavior during Co-Firing of Polish Bituminous Coal with Barley Straw Using Non-Standard Tests," Energies, MDPI, vol. 16(11), pages 1-15, May.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:11:p:4424-:d:1159966
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    References listed on IDEAS

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    1. Magdziarz, Aneta & Wilk, Małgorzata & Gajek, Marcin & Nowak-Woźny, Dorota & Kopia, Agnieszka & Kalemba-Rec, Izabela & Koziński, Janusz A., 2016. "Properties of ash generated during sewage sludge combustion: A multifaceted analysis," Energy, Elsevier, vol. 113(C), pages 85-94.
    2. Tae-Yong Jeong & Lkhagvadorj Sh & Jong-Ho Kim & Byoung-Hwa Lee & Chung-Hwan Jeon, 2019. "Experimental Investigation of Ash Deposit Behavior during Co-Combustion of Bituminous Coal with Wood Pellets and Empty Fruit Bunches," Energies, MDPI, vol. 12(11), pages 1-17, May.
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    Cited by:

    1. Yinchen Wang & Zhongyang Luo & Chunjiang Yu & Sheng Wang & Xiaohuan Wang & Peiliang Zhu, 2024. "Improving the Methodology for Determining the Biomass/Coal Co-Combustion Ratio: Predictive Modeling of the 14 C Activity of Pure Biomass," Energies, MDPI, vol. 17(4), pages 1-23, February.
    2. Ziqiang Yang & Fenghai Li & Mingjie Ma & Xuefei Liu & Hongli Fan & Zhenzhu Li & Yong Wang & Yitian Fang, 2023. "Regulation Mechanism of Solid Waste on Ash Fusion Characteristics of Sorghum Straw under O 2 /CO 2 Atmosphere," Energies, MDPI, vol. 16(20), pages 1-17, October.
    3. Jiajun Du & Jiahui Yang & Yonggang Zhao & Qianxin Guo & Yaodong Da & Defu Che, 2024. "Numerical Study on Effect of Flue Gas Recirculation and Co-Firing with Biomass on Combustion Characteristics in Octagonal Tangentially Lignite-Fired Boiler," Energies, MDPI, vol. 17(2), pages 1-15, January.

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