A Mathematical Model of Industrial Waste-Derived Fuel Droplet Combustion in High-Temperature Air
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 detai...
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| Format: | Article |
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MDPI AG
2022-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/23/12273 |
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| author | Dmitrii Antonov Dmitrii Glushkov Kristina Paushkina Daria Kuznechenkova Anand Ramanathan |
| author_facet | Dmitrii Antonov Dmitrii Glushkov Kristina Paushkina Daria Kuznechenkova Anand Ramanathan |
| author_sort | Dmitrii Antonov |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-09T17:53:44Z |
| format | Article |
| id | doaj.art-d9ef7733b69447aa9843e5d38759cc3d |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T17:53:44Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-d9ef7733b69447aa9843e5d38759cc3d2023-11-24T10:33:49ZengMDPI AGApplied Sciences2076-34172022-11-0112231227310.3390/app122312273A Mathematical Model of Industrial Waste-Derived Fuel Droplet Combustion in High-Temperature AirDmitrii Antonov0Dmitrii Glushkov1Kristina Paushkina2Daria Kuznechenkova3Anand Ramanathan4Heat Mass Transfer Laboratory, National Research Tomsk Polytechnic University, Tomsk 634050, RussiaHeat Mass Transfer Laboratory, National Research Tomsk Polytechnic University, Tomsk 634050, RussiaHeat Mass Transfer Laboratory, National Research Tomsk Polytechnic University, Tomsk 634050, RussiaHeat Mass Transfer Laboratory, National Research Tomsk Polytechnic University, Tomsk 634050, RussiaDepartment of Mechanical Engineering, National Institute of Technology Tiruchirappalli, Tiruchirappalli 620015, IndiaThe 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.https://www.mdpi.com/2076-3417/12/23/12273wastefuel compositionheated aircombustionnumerical simulation |
| spellingShingle | Dmitrii Antonov Dmitrii Glushkov Kristina Paushkina Daria Kuznechenkova Anand Ramanathan A Mathematical Model of Industrial Waste-Derived Fuel Droplet Combustion in High-Temperature Air Applied Sciences waste fuel composition heated air combustion numerical simulation |
| title | A Mathematical Model of Industrial Waste-Derived Fuel Droplet Combustion in High-Temperature Air |
| title_full | A Mathematical Model of Industrial Waste-Derived Fuel Droplet Combustion in High-Temperature Air |
| title_fullStr | A Mathematical Model of Industrial Waste-Derived Fuel Droplet Combustion in High-Temperature Air |
| title_full_unstemmed | A Mathematical Model of Industrial Waste-Derived Fuel Droplet Combustion in High-Temperature Air |
| title_short | A Mathematical Model of Industrial Waste-Derived Fuel Droplet Combustion in High-Temperature Air |
| title_sort | mathematical model of industrial waste derived fuel droplet combustion in high temperature air |
| topic | waste fuel composition heated air combustion numerical simulation |
| url | https://www.mdpi.com/2076-3417/12/23/12273 |
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