Тип публикации: статья из журнала

Год издания: 2023

Идентификатор DOI: 10.3390/app131911060

Ключевые слова: coal, biomass, fuel mixture, co-combustion, thermogravimetric analysis, activation energy

Аннотация: <jats:p>The work determines the characteristics of the processes of thermal decomposition and combustion when heating coal, cedar needles, and their mixtures with different fuel particle sizes. Based on the results of thermal analysis, the following characteristics were determined: the temperature at which the coke residue ignitionПоказать полностьюoccurs, the temperature at which the combustion process is completed, and the combustion index. An analysis was carried out of the interaction between the fuel mixture components on the characteristics of their combustion for compositions (50% coal and 50% biomass) with a particle size of 100–200 μm and 300–400 μm. The combustion kinetic parameters of individual solid fuels and their mixtures containing 50% coal and 50% biomass are compared. The activation energy for coal combustion was 60.3 kJ mol−1, for biomass 24.6 kJ mol−1, and for mixture 42.5 kJ mol−1. The co-combustion of coal and biomass has a positive effect on the main combustion characteristics of solid fuels. Fuels with particle sizes of 100–200, 200–300, and 300–400 μm were studied at temperatures of 500–800 °C under heating conditions in a heated airflow. Using a hardware-software complex for high-speed video recording of fast processes, the ignition delay times were determined, the values of which for the considered fuels vary in the range from 0.01 to 0.20 s. Adding 50 wt% biomass with particle sizes of 100–200, 200–300, and 300–400 μm to coal reduces the ignition delay times of mixtures by 55, 41, and 27%, respectively. The results obtained can become the basis for the conversion and design of modern power plants operating on solid fuel mixtures to co-combust coal with biomass.</jats:p>

Журнал: Applied Sciences (Switzerland)

Выпуск журнала: Т.13, №19

Номера страниц: 11060

ISSN журнала: 20763417

Издатель: MDPI AG

• Glushkov Dmitrii (Heat Mass Transfer Laboratory, National Research Tomsk Polytechnic University, 30, Lenin Avenue, 634050 Tomsk, Russia)
• Zhuikov Andrey (Polytechnic School, Siberian Federal University, 79, Svobodny Avenue, 660041 Krasnoyarsk, Russia)
• Zemlyansky Nikolai (Polytechnic School, Siberian Federal University, 79, Svobodny Avenue, 660041 Krasnoyarsk, Russia)
• Pleshko Andrey (Heat Mass Transfer Laboratory, National Research Tomsk Polytechnic University, 30, Lenin Avenue, 634050 Tomsk, Russia)
• Fetisova Olga (Institute of Chemistry and Chemical Technology, Siberian Branch of RAS, 50/24, Akademgorodok, 660036 Krasnoyarsk, Russia)
• Kuznetsov Petr (Institute of Chemistry and Chemical Technology, Siberian Branch of RAS, 50/24, Akademgorodok, 660036 Krasnoyarsk, Russia)

• Ядро РИНЦ (eLIBRARY.RU)