| 000 | 03749nlm1a2200349 4500 | ||
|---|---|---|---|
| 001 | 669474 | ||
| 005 | 20231030042224.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\40714 | ||
| 035 | _aRU\TPU\network\40662 | ||
| 090 | _a669474 | ||
| 100 | _a20230517a2023 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aIgnition and combustion of a group of waste-derived fuel slurry droplets: Mutual influence upon low-temperature convective heating _fD. S. Romanov, K. Yu. Vershinina, P. A. Strizhak |
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| 203 |
_aText _celectronic |
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| 300 | _aTitle screen | ||
| 320 | _a[References: 30 tit.] | ||
| 330 | _aWaste-derived slurries can be burned both in a fluidized bed and when injected into a boiler furnace. This paper is the first to analyze the dynamic characteristics of ignition and combustion of a group of three slurry droplets based on coal slime, water, and waste industrial oil in a low-temperature air flow with a temperature of 500–600 °C and velocity of 0.1–1.2 m/s. The distance between the droplet centers varied from 3 to 15 mm. The results of the study can develop innovative technologies for flare and fluidized bed combustion of fuel slurries at the boiler start-up stage. It was found that a distance of 3–5 mm between droplet centers provides almost simultaneous gas-phase ignition of all droplets. A further increase in the distance critically worsened the ignition and combustion and eliminated the synergy. An increase in the air flow velocity contributed to the appearance of a common flame zone but at the same time increased the ignition delay of droplets by a factor of 1.2–1.6. The negative effects of cooling and entrainment of combustion products by a low-temperature flow can be effectively reduced by adding 5 wt% of industrial oil to the slurry. Also, the use of oil reduced the droplet ignition delay time by 15–20%. At the stages of flame and heterogeneous combustion, the differences for droplets in a group increased (the stage durations differed by 1.5–3 times). For the low-temperature start-up of a boiler, it was found advisable to provide a droplet flow with a sufficient density to stabilize their ignition without significant flow deviations (dimensionless distance 1.5–2.5). | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tFuel | ||
| 463 |
_tVol. 348 _v[128578, 14 p.] _d2023 |
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| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 700 | 1 |
_aRomanov _bD. S. _cspecialist in the field of thermal power engineering and heat engineering _cResearch Engineer of Tomsk Polytechnic University _f1997- _gDaniil Sergeevich _2stltpush _3(RuTPU)RU\TPU\pers\47193 |
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| 701 | 1 |
_aVershinina _bK. Yu. _cspecialist in the field of heat and power engineering _cAssociate Professor of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences _f1992- _gKseniya Yurievna _2stltpush _3(RuTPU)RU\TPU\pers\33706 |
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| 701 | 1 |
_aStrizhak _bP. A. _cSpecialist in the field of heat power energy _cDoctor of Physical and Mathematical Sciences (DSc), Professor of Tomsk Polytechnic University (TPU) _f1985- _gPavel Alexandrovich _2stltpush _3(RuTPU)RU\TPU\pers\30871 |
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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 _c20230517 _gRCR |
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| 856 | 4 | _uhttps://doi.org/10.1016/j.fuel.2023.128578 | |
| 942 | _cCF | ||