| 000 | 04716nlm1a2200505 4500 | ||
|---|---|---|---|
| 001 | 668762 | ||
| 005 | 20231030042159.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\39999 | ||
| 035 | _aRU\TPU\network\36527 | ||
| 090 | _a668762 | ||
| 100 | _a20230124a2021 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aIgnition and combustion characteristics of coal - water fuels based on coal & semi-coke _fG. V. Kuznetsov, S. V. Syrodoy, V. V. Salomatov [et al.] |
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| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 320 | _a[References: 52 tit.] | ||
| 330 | _aThe article presents the results of experimental and theoretical studies of the ignition processes of coal- water fuel (CWF) drops made from coals of various degrees of metamorphism and coal semi-coke of these coals. It is shown that the preliminary torrefaction of coal leads to a significant improvement in environmental performance (50–60% reduction in flue gas concentrations of the main anthropogenic coal combustion products: nitrogen oxides NOx and sulfur SOx) of coal- water fuel combustion processes. This effect is most pronounced during the combustion of CWF based on lignite. Also, according to the results of the experiments, the ignition delay times of typical droplets (in the initial state), and then particles (after drying the near-surface fuel layer) of coal- water fuel s based on coals and coal semi-coke were established. It has been established that the ignition delay times of coal- water fuel particles based on pre-torrefied coals at relatively low ambient temperatures (Tg?873 K) are on average 20% higher than when igniting CWF droplets based on natural coal. Under conditions of high-temperature heating, the ignition delay times of CWF particles made from natural coal and semi-coke differ insignificantly (no more than 2%). Based on the results of the experimental studies, a mathematical model of the ignition process of a coal- water fuel drop based on semi-coke was developed, which differs from the known ones in a relatively simple description of the most significant processes of thermal preparation and ignition, but at the same time retains a fairly high predictive potential. Using the previously developed method of quasi-stationary "thermal approximation" with the selection of an asymptotic estimate, an analytical solution is derived for the essentially nonlinear problem of coal- water fuel droplet ignition. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tCombustion and Flame | ||
| 463 |
_tVol. 246 _v[112430, 14 p.] _d2022 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _acoal- water fuel | |
| 610 | 1 | _asemi-coke | |
| 610 | 1 | _asulfur oxides | |
| 610 | 1 | _anitrogen oxides | |
| 610 | 1 | _aignition delay time | |
| 610 | 1 | _aводоугольное топливо | |
| 610 | 1 | _aполукокс | |
| 610 | 1 | _aоксид серы | |
| 610 | 1 | _aоксид азота | |
| 701 | 1 |
_aKuznetsov _bG. V. _cSpecialist in the field of heat power energy _cProfessor of Tomsk Polytechnic University, Doctor of Physical and Mathematical Sciences _f1949- _gGeny Vladimirovich _2stltpush _3(RuTPU)RU\TPU\pers\31891 |
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| 701 | 1 |
_aSyrodoy _bS. V. _cspecialist in the field of thermal engineering _cAssociate Professor of Tomsk Polytechnic University, Candidate of Technical Sciences _f1988- _gSemen Vladimirovich _2stltpush _3(RuTPU)RU\TPU\pers\35117 |
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| 701 | 1 |
_aSalomatov _bV. V. _gVladimir Vasiljevich |
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| 701 | 1 |
_aMalyshev _bD. Yu. _cSpecialist in the field of thermal engineering _cTechnician of Tomsk Polytechnic University _f1991- _gDmitry Yurievich _2stltpush _3(RuTPU)RU\TPU\pers\46475 |
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| 701 | 1 |
_aKostoreva _bZh. A. _cSpecialist in the field of heat and power engineering _cEngineer of Tomsk Polytechnic University _f1994- _gZhanna Andreevna _2stltpush _3(RuTPU)RU\TPU\pers\46428 |
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| 701 | 1 |
_aPurin _bM. V. _gMikhail Vladimirovich |
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| 701 | 1 |
_aYankovsky _bS. A. _cspecialist in the field of power engineering _cengineer of Tomsk Polytechnic University, assistant _f1985- _gStanislav Aleksandrovich _2stltpush _3(RuTPU)RU\TPU\pers\34772 |
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| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИнженерная школа энергетики _bНаучно-образовательный центр И. Н. Бутакова (НОЦ И. Н. Бутакова) _h8025 _2stltpush _3(RuTPU)RU\TPU\col\23504 |
| 801 | 2 |
_aRU _b63413507 _c20230124 _gRCR |
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| 856 | 4 | _uhttps://doi.org/10.1016/j.combustflame.2022.112430 | |
| 942 | _cCF | ||