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182 0 _ab
200 1 _aThe influence of key parameters on combustion of double gas hydrate
_fS. Ya. Misyura, A. Yu. Manakov, V. S. Morozov [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 48 tit.]
330 _aThe combustion and dissociation of the double hydrate of propane-methane have been studied in terms of several key parameters: the velocity of the forced air flow U0, heat flux, temperature difference, and geometry of the work area. Simple expressions relating the dissociation rate with the specified key parameters have been obtained. The ratio of dissociation rates J1/J2 was determined, where the dissociation rates J1 and J2 correspond to the experiment with and without combustion, respectively. At U0 = 0 m/s, the ratio J1/J2 equals 8–9, and in the presence of forced gas flow J1/J2 = 11–12. Forced convection increases this ratio. Approximate correlations have been obtained for assessing the time of combustion beginning and the duration of the gas hydrate burning. The dissociation rate is nonlinearly related to the velocity U0. Two characteristic modes of gas hydrate dissociation are distinguished. Measurements of velocity fields obtained using the Particle Tracking Velocimetry (PTV) method show that the interaction of forced and free convection flows leads to a decrease in the maximum resultant velocity. Due to fuel excess over the oxidizer (violation of stoichiometric ratio), there are periodic emissions of gas bubbles, leading to incomplete combustion of the fuel. To improve the efficiency of combustion, it is advisable to use velocities U0 = 1.2–3 m/s. A further increase in U0 leads to the extinguishing of the flame.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tJournal of Natural Gas Science and Engineering
463 _tVol. 80
_v[103396, 9 p.]
_d2020
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _agas hydrate combustion
610 1 _agas hydrate dissociation
610 1 _aheat transfer
610 1 _aгидраты газов
610 1 _aсжигание
610 1 _aтеплопередача
701 1 _aMisyura
_bS. Ya.
_cspecialist in the field of power engineering
_cleading researcher of Tomsk Polytechnic University, candidate of technical sciences
_f1964-
_gSergey Yakovlevich
_2stltpush
_3(RuTPU)RU\TPU\pers\39641
701 1 _aManakov
_bA. Yu.
_gAleksandr Yurjevich
701 1 _aMorozov
_bV. S.
_gVladimir Sergeevich
701 1 _aNyashina
_bG. S.
_cspecialist in the field of heat and power engineering
_claboratory assistant of Tomsk Polytechnic University
_f1992-
_gGalina Sergeevna
_2stltpush
_3(RuTPU)RU\TPU\pers\35843
701 1 _aGaydukova
_bO. S.
_cspecialist in the field of heat and power engineering
_cResearch Engineer of Tomsk Polytechnic University
_f1993-
_gOlga Sergeevna
_2stltpush
_3(RuTPU)RU\TPU\pers\46480
701 1 _aSkiba
_bS. S.
_gSergey Sergeevich
701 1 _aVolkov
_bR. S.
_cspecialist in the field of power engineering
_csenior lecturer, engineer of the Tomsk Polytechnic University, candidate of technical Sciences
_f1987-
_gRoman Sergeevich
_2stltpush
_3(RuTPU)RU\TPU\pers\33926
701 1 _aVoytkov
_bI. S.
_gIvan Sergeevich
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИсследовательская школа физики высокоэнергетических процессов
_c(2017- )
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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
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856 4 _uhttps://doi.org/10.1016/j.jngse.2020.103396
942 _cCF