Abstract
The article notes that under conditions of fluctuations in global fuel markets and the growing need to improve energy security, the development of energy-efficient and environmentally safe coal-based fuels is becoming increasingly important. A method for producing coal–water fuel based on Angren lignite, pyrolytic char, pyrolysis liquid, water, and a plasticizing additive is proposed. The thermophysical properties of the developed coal–water fuel was determined using calculated relationships for multicomponent systems and verified by experimental data. The density, viscosity, thermal conductivity, and thermal diffusivity of the composite fuel were evaluated. A comparison of calculated and experimental results showed satisfactory agreement, confirming the validity of the applied methodology. It was found that the use of the developed coal-water fuel ensures a high combustion efficiency (up to 95-98%), reduces emissions of harmful components, and improves the efficiency of fuel resource utilization.
References
1. Allaev K.R. Modern Energy and Prospects for its Development. Edited by Academician Salimov A.U. – Tashkent: Fan va Texnologiyalar, 2021. – 951 p.
2. Узаков Г. Н., Базаров О. Ш., Давланов Х. А., Тошмаматов Б. Научно-инновационные разработки Каршинского инженерно-экономического института по использованию возобновляемых источников энергии Беларусь-Узбекистан: формирование рынка инновационной продукции Сборник материалов научно практической конференции (Минск, 14–15 марта 2023 г.), стр. 353-356.
3. Узаков Г.Н., Давланов Х.А., Тошмаматов Б.М. Энергоэффективные системы и технологии с использованием альтернативных источников энергии //Альтернативная энергетика. 2021. Т. 1. С. 7-19.
4. Uzakov G.N. et al. 2025. Development of a hybrid pyrolysis device and justification of energy efficiency. E3S Web of Conferences 623, 03012
5. Toshmamatov B.M., Uzboev M.D., Mamatova M.Sh. Analysis Of Thermal And Technical Parameters Of Alternative Fuels Obtained From Biomass Pyrolysis. American Journal of Applied Science and Technology. Vol.05 Issue 12 2025. 161-166 pp.
6. Toshmamatov B.M., Uzboev M.D., Mamatova M. Development of a Method for Obtaining Energy-Efficient Water-Coal Fuel Based on Biomass Pyrolysis Products. Alternative energy. 2025. 4(21). pp. 38-44.
7. Toshmamatov B.M. Uzboev M.D., Toshboev A.R. FTIR Analysis of Coal–Water Alternative Fuel. Alternative energy. 2025. 4 (21). pp. 45-48.
8. Toshmamatov B.M. Uzboev M.D. Analysis of technologies and devices for burning alternative biomass-derived fuels. International Journal of Science and Technology, Volume 03, Issue 02. 2026, PP. 13–17.
9. Chatterjee, R., Sajjadi, B., Chen, W.Y., Mattern, D., Hammer, N., Raman, V., Dorris, A., 2020. Effect of pyrolysis temperature on physicochemical properties and acousticbased amination of bioko’mir for efficient CO2 adsorption. Front. Energy Res. 8.
10. Uzakov G. et al. Physical Principles of Wastewater Heat Utilization Using High-Temperature Solar Installations. // Springer Proceedings in Physics. 2025.7.31.
11. Toshmamatov B. Development of automation and control system of waste gas production process based on information technology. // Communications in Computer and Information Science. – 2024. -2112. - PP.196–205.