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Title: | A Mathematical Model of Industrial Waste-Derived Fuel Droplet Combustion in High-Temperature Air |
Authors: | Antonov, Dmitry Vladimirovich Glushkov, Dmitry Olegovich Paushkina, Kristina Konstantinovna Kuznechenkova, Darjya Antonovna Ramanathan, Anand |
Keywords: | waste; fuel composition; heated air; combustion; numerical simulation |
Issue Date: | 2022 |
Publisher: | MDPI AG |
Citation: | A Mathematical Model of Industrial Waste-Derived Fuel Droplet Combustion in High-Temperature Air / D. V. Antonov, D. O. Glushkov, K. K. Paushkina [et al.] // Applied Sciences. — 2022. — Vol. 12, iss. 23. — [12273, 24 p.]. |
Abstract: | The results of a theoretical and experimental study of the processes of ignition and combustion of a single composite liquid fuel (CLF) droplet based on wet coal processing waste and combustible municipal solid waste under radiant and convective heating are presented. Based on the results of a detailed analysis of video recordings and previously obtained experimental data from the ignition and combustion of a single CLF droplet, a mathematical model was developed. The advantage of the developed mathematical model lies in the specification of sequential physical and chemical processes of the high-temperature decomposition of fuel in a high-temperature gaseous medium. A numerical simulation of combustion characteristics was carried out in the Ansys Fluent commercial software for five different CLF compositions. The ignition-delay times were established for fuel droplets that were in a preheated motionless air environment, a temperature in the range of 723–1273 K, and an air flow heated to 723–973 K moving at a velocity of 3 m/s. Using the asymptotic procedure, satisfactory analytical solutions are obtained for the multistage nonlinear problem of ignition and combustion of a single CLF droplet. The possibility for the practical application of the developed program in Ansys Fluent in predicting the characteristics of the ignition processes of CLF droplets is substantiated. |
URI: | http://earchive.tpu.ru/handle/11683/74785 |
Appears in Collections: | Репринты научных публикаций |
Files in This Item:
File | Description | Size | Format | |
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reprint-nw-39965.pdf | 4,69 MB | Adobe PDF | View/Open |
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