Characteristics of alcohol-coal-water slurries spraying; Resource-Efficient Technologies; No 4
| Parent link: | Resource-Efficient Technologies: electronic scientific journal/ National Research Tomsk Polytechnic University (TPU).— , 2015-.— 2405-6537 No 4.— 2020.— [P. 30-39] |
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| Corporate Author: | |
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| Summary: | Title screen The aim of this work is to substantiate the efficiency of ethyl or isoamyl alcohol application as the third component of coal-water fuels based on the results of experimental study of coaxial spraying. Studies of alcohols influence on spraying characteristics of coal-water fuels can rarely be found in the literature. Instantaneous fields of fuel droplets velocities in several cross-sections of the jet were determined using Particle Image Velocimetry method. Interferometric Particle Imaging method was used to determine droplets distribution by size in the jet of sprayed coal-water fuel. It was experimentally established that substitution of water (no more than 3 % by weight) in the composition of coal-water slurry by fairly typical alcohols leads to decrease in droplet velocities of alcohol-coal-water slurries in comparison with conventional coal-water fuel by 15-18 %. Concentration of sufficiently small fuel droplets (up to 200 microns) increases by 13.4±0.2 % and by 6.6±0.2 % during atomization of alcohol-coal-water slurries with addition of ethyl and isoamyl alcohol, respectively. Introduction of no more than 5 % by weight of the studied alcohols into the coal-water slurry will reduce the cost of fuel by 15-73 % in comparison with fuel oil. Influence of small additives of ethyl and isoamyl alcohol in the composition of coal-water fuel on spraying characteristics proves the possibility of efficient application of such three-component slurries in thermal power engineering. The results obtained are of practical significance, since they illustrate the possibility of reducing the ignition delay time for droplets of alcohol-coal-water slurries after they are sprayed in the furnaces of boiler units. |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | http://earchive.tpu.ru/handle/11683/64275 https://doi.org/10.18799/24056537/2020/4/280 |
| Format: | Electronic Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=585992 |
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| 200 | 1 | |a Characteristics of alcohol-coal-water slurries spraying |f D. V. Gvozdyakov, V. E. Gubin, A. V. Zenkov | |
| 203 | |a Text |c electronic | ||
| 215 | |a 1 файл(1 152 Kb) | ||
| 300 | |a Title screen | ||
| 320 | |a [References: p. 38-39 (24 tit.)] | ||
| 330 | |a The aim of this work is to substantiate the efficiency of ethyl or isoamyl alcohol application as the third component of coal-water fuels based on the results of experimental study of coaxial spraying. Studies of alcohols influence on spraying characteristics of coal-water fuels can rarely be found in the literature. Instantaneous fields of fuel droplets velocities in several cross-sections of the jet were determined using Particle Image Velocimetry method. Interferometric Particle Imaging method was used to determine droplets distribution by size in the jet of sprayed coal-water fuel. It was experimentally established that substitution of water (no more than 3 % by weight) in the composition of coal-water slurry by fairly typical alcohols leads to decrease in droplet velocities of alcohol-coal-water slurries in comparison with conventional coal-water fuel by 15-18 %. Concentration of sufficiently small fuel droplets (up to 200 microns) increases by 13.4±0.2 % and by 6.6±0.2 % during atomization of alcohol-coal-water slurries with addition of ethyl and isoamyl alcohol, respectively. Introduction of no more than 5 % by weight of the studied alcohols into the coal-water slurry will reduce the cost of fuel by 15-73 % in comparison with fuel oil. Influence of small additives of ethyl and isoamyl alcohol in the composition of coal-water fuel on spraying characteristics proves the possibility of efficient application of such three-component slurries in thermal power engineering. The results obtained are of practical significance, since they illustrate the possibility of reducing the ignition delay time for droplets of alcohol-coal-water slurries after they are sprayed in the furnaces of boiler units. | ||
| 461 | 1 | |0 (RuTPU)RU\TPU\prd\247369 |x 2405-6537 |t Resource-Efficient Technologies |o electronic scientific journal |f National Research Tomsk Polytechnic University (TPU) |d 2015- | |
| 463 | 1 | |0 (RuTPU)RU\TPU\prd\288324 |t No 4 |v [P. 30-39] |d 2020 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a spraying | |
| 610 | 1 | |a coal-water fuel | |
| 610 | 1 | |a alcohols | |
| 610 | 1 | |a droplet | |
| 610 | 1 | |a velocity | |
| 610 | 1 | |a распыление | |
| 610 | 1 | |a водоугольное топливо | |
| 610 | 1 | |a спирты | |
| 610 | 1 | |a капли | |
| 610 | 1 | |a суспензии | |
| 700 | 1 | |a Gvozdyakov |b D. V. |c specialist in the field of power engineering |c Associate Professor of Tomsk Polytechnic University, Candidate of technical sciences |f 1985- |g Dmitry Vasilievich |3 (RuTPU)RU\TPU\pers\35121 |9 18396 | |
| 701 | 1 | |a Gubin |b V. E. |c specialist in the field of power engineering |c Associate Professor of Tomsk Polytechnic University, Candidate of technical sciences |f 1976- |g Vladimir Evgenievich |3 (RuTPU)RU\TPU\pers\35120 |9 18395 | |
| 701 | 1 | |a Zenkov |b A. V. |c Associate Professor of Tomsk Polytechnic University, Candidate of Technical Sciences |c specialist in the field of power engineering |f 1992- |g Andrey Viktorovich |3 (RuTPU)RU\TPU\pers\37816 |9 20530 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа энергетики |b Научно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова) |3 (RuTPU)RU\TPU\col\23504 |
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