Temperature measurements in a string of three closely spaced droplets before the start of puffing/micro-explosion: Experimental results and modelling; International Journal of Heat and Mass Transfer; Vol. 181
| Parent link: | International Journal of Heat and Mass Transfer Vol. 181.— 2021.— [121837, 11 p.] |
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| Kurumsal yazarlar: | , |
| Diğer Yazarlar: | , , , , , |
| Özet: | Title screen The results of experimental and theoretical investigation of the mutual effects of three composite Diesel fuel/water droplets, one behind the other, on their puffing/micro-explosion are presented. The analysis is focused not only on finding the time instant when puffing/micro-explosion starts, but also on the investigation of time evolution of temperature at the water-fuel interface before the development of puffing/micro-explosion. The experimentally observed temperatures at the water-fuel interface are shown to increase almost linearly with time for the lead, middle and downstream droplets. Assuming that puffing/micro-explosion starts when the temperature at this interface reaches the water nucleation temperature, the values of the latter temperature as a function of the heating rate were found from the experimental data. The results are shown to be consistent with the earlier found correlation for this temperature for all three droplets. Time to puffing/micro-explosion is shown to decrease with increasing gas temperature; this time for the lead droplet is always shorter than that of the middle and downstream droplets, and the difference between them decreases as the distance between droplets increases. The experimental results are interpreted in terms of the previously developed model based on the assumption that the water sub-droplet is located exactly in the centre of the Diesel fuel droplet and that this process is triggered when the temperature at the water/fuel interface attains the water nucleation temperature. The effect of interaction between lead, middle and downstream droplets is considered via modifications to the Nusselt (Nu) and Sherwood (Sh) numbers for these droplets due to the interaction between them. Режим доступа: по договору с организацией-держателем ресурса |
| Dil: | İngilizce |
| Baskı/Yayın Bilgisi: |
2021
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| Konular: | |
| Online Erişim: | https://doi.org/10.1016/j.ijheatmasstransfer.2021.121837 |
| Materyal Türü: | MixedMaterials Elektronik Kitap Bölümü |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=665562 |
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| 200 | 1 | |a Temperature measurements in a string of three closely spaced droplets before the start of puffing/micro-explosion: Experimental results and modelling |f D. V. Antonov, R. S. Volkov, R. M. Fedorenko [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 32 tit.] | ||
| 330 | |a The results of experimental and theoretical investigation of the mutual effects of three composite Diesel fuel/water droplets, one behind the other, on their puffing/micro-explosion are presented. The analysis is focused not only on finding the time instant when puffing/micro-explosion starts, but also on the investigation of time evolution of temperature at the water-fuel interface before the development of puffing/micro-explosion. The experimentally observed temperatures at the water-fuel interface are shown to increase almost linearly with time for the lead, middle and downstream droplets. Assuming that puffing/micro-explosion starts when the temperature at this interface reaches the water nucleation temperature, the values of the latter temperature as a function of the heating rate were found from the experimental data. The results are shown to be consistent with the earlier found correlation for this temperature for all three droplets. Time to puffing/micro-explosion is shown to decrease with increasing gas temperature; this time for the lead droplet is always shorter than that of the middle and downstream droplets, and the difference between them decreases as the distance between droplets increases. The experimental results are interpreted in terms of the previously developed model based on the assumption that the water sub-droplet is located exactly in the centre of the Diesel fuel droplet and that this process is triggered when the temperature at the water/fuel interface attains the water nucleation temperature. The effect of interaction between lead, middle and downstream droplets is considered via modifications to the Nusselt (Nu) and Sherwood (Sh) numbers for these droplets due to the interaction between them. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t International Journal of Heat and Mass Transfer | ||
| 463 | |t Vol. 181 |v [121837, 11 p.] |d 2021 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a composite droplets | |
| 610 | 1 | |a puffing | |
| 610 | 1 | |a micro-explosion | |
| 610 | 1 | |a heating | |
| 610 | 1 | |a evaporation | |
| 610 | 1 | |a droplets in a row | |
| 610 | 1 | |a микровзрывы | |
| 610 | 1 | |a обогрев | |
| 610 | 1 | |a испарение | |
| 701 | 1 | |a Antonov |b D. V. |c specialist in the field of heat and power engineering |c Research Engineer of Tomsk Polytechnic University |f 1996- |g Dmitry Vladimirovich |3 (RuTPU)RU\TPU\pers\46666 | |
| 701 | 1 | |a Volkov |b R. S. |c specialist in the field of power engineering |c Associate Professor of the Tomsk Polytechnic University, candidate of technical Sciences |f 1987- |g Roman Sergeevich |3 (RuTPU)RU\TPU\pers\33926 |9 17499 | |
| 701 | 1 | |a Fedorenko |b R. M. |c specialist in the field of thermal engineering |c Research Engineer of Tomsk Polytechnic University, Candidate of physical and mathematical sciences |f 1997- |g Roman Mikhaylovich |9 88535 | |
| 701 | 1 | |a Strizhak |b P. A. |c Specialist in the field of heat power energy |c Doctor of Physical and Mathematical Sciences (DSc), Professor of Tomsk Polytechnic University (TPU) |f 1985- |g Pavel Alexandrovich |3 (RuTPU)RU\TPU\pers\30871 |9 15117 | |
| 701 | 1 | |a Castanet |b G. |g Guillaume | |
| 701 | 1 | |a Sazhin |b S. S. |c geophysicist |c Leading researcher at Tomsk Polytechnic University, PhD in Physics and Mathematics |f 1949- |g Sergey Stepanovich |9 88718 | |
| 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 |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Исследовательская школа физики высокоэнергетических процессов |c (2017- ) |3 (RuTPU)RU\TPU\col\23551 |
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