Mathematical Simulation of Forest Fuel Pyrolysis in One-Dimensional Statement Taking into Account Soot Formation; Processes; Vol. 9, iss. 9
| Parent link: | Processes Vol. 9, iss. 9.— 2021.— [1616, 20 p.] |
|---|---|
| Hovedforfatter: | |
| Institution som forfatter: | |
| Andre forfattere: | |
| Summary: | Title screen Pyrolysis (thermal decomposition) is considered as the most important stage of a forest fire before direct forest fuel ignition. This process is accompanied by soot particle formation. Such particles have a negative impact on public health in the vicinity of forest fires. The purpose of this article was to investigate the heat and mass transfer process occurring in a typical forest fuel element (birch leaf). The pyrolysis and soot formation processes were taken into account, and various forest fire scenarios were considered. Computational experiments were carried out using the high-level programming language Delphi. Heat and mass transfer processes were described by nonlinear non-stationary differential heat conduction equations with corresponding initial and boundary conditions. The differential equations were solved by the finite difference method. Nonlinearity was resolved using a simple iteration. The main results of the research were (1) physical and mathematical models proposed for modeling forest fuel pyrolysis, taking into account soot formation and conditions corresponding to various forest fires; (2) a computer program coded in the high-level programming language Delphi; (3) the obtained temperature distributions over leaf thickness; (4) volume fractions obtained for various components dependent on time and space coordinates. The qualitative analysis of the dependencies showed that the temperature distributions in the birch leaf structure are similar for all forest fire types and differ only in absolute value. The intensity of the soot formation process directly depends on the forest fire type. The presented results should be useful in predicting and assessing forest fire danger, including near the facilities of the Russian Railways. |
| Sprog: | engelsk |
| Udgivet: |
2021
|
| Fag: | |
| Online adgang: | http://earchive.tpu.ru/handle/11683/71096 https://doi.org/10.3390/pr9091616 |
| Format: | Electronisk Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666048 |
MARC
| LEADER | 00000naa0a2200000 4500 | ||
|---|---|---|---|
| 001 | 666048 | ||
| 005 | 20250211171743.0 | ||
| 035 | |a (RuTPU)RU\TPU\network\37252 | ||
| 035 | |a RU\TPU\network\34996 | ||
| 090 | |a 666048 | ||
| 100 | |a 20211201d2021 k||y0rusy50 ba | ||
| 101 | 0 | |a eng | |
| 102 | |a CH | ||
| 135 | |a drcn ---uucaa | ||
| 181 | 0 | |a i | |
| 182 | 0 | |a b | |
| 200 | 1 | |a Mathematical Simulation of Forest Fuel Pyrolysis in One-Dimensional Statement Taking into Account Soot Formation |f N. V. Baranovskiy, V. A. Kirienko | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 84 tit.] | ||
| 330 | |a Pyrolysis (thermal decomposition) is considered as the most important stage of a forest fire before direct forest fuel ignition. This process is accompanied by soot particle formation. Such particles have a negative impact on public health in the vicinity of forest fires. The purpose of this article was to investigate the heat and mass transfer process occurring in a typical forest fuel element (birch leaf). The pyrolysis and soot formation processes were taken into account, and various forest fire scenarios were considered. Computational experiments were carried out using the high-level programming language Delphi. Heat and mass transfer processes were described by nonlinear non-stationary differential heat conduction equations with corresponding initial and boundary conditions. The differential equations were solved by the finite difference method. Nonlinearity was resolved using a simple iteration. The main results of the research were (1) physical and mathematical models proposed for modeling forest fuel pyrolysis, taking into account soot formation and conditions corresponding to various forest fires; (2) a computer program coded in the high-level programming language Delphi; (3) the obtained temperature distributions over leaf thickness; (4) volume fractions obtained for various components dependent on time and space coordinates. The qualitative analysis of the dependencies showed that the temperature distributions in the birch leaf structure are similar for all forest fire types and differ only in absolute value. The intensity of the soot formation process directly depends on the forest fire type. The presented results should be useful in predicting and assessing forest fire danger, including near the facilities of the Russian Railways. | ||
| 338 | |b Российский фонд фундаментальных исследований |d 20-31-51001 | ||
| 461 | |t Processes | ||
| 463 | |t Vol. 9, iss. 9 |v [1616, 20 p.] |d 2021 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a mathematical simulation | |
| 610 | 1 | |a forest fuel | |
| 610 | 1 | |a pyrolysis | |
| 610 | 1 | |a soot formation | |
| 610 | 1 | |a forest fire | |
| 610 | 1 | |a ignition | |
| 610 | 1 | |a математическое моделирование | |
| 610 | 1 | |a лесное топливо | |
| 610 | 1 | |a пиролиз | |
| 610 | 1 | |a пожары | |
| 610 | 1 | |a зажигание | |
| 700 | 1 | |a Baranovskiy |b N. V. |c specialist in electrical engineering |c Associate Professor of Tomsk Polytechnic University, Candidate of physical and mathematical sciences |f 1978- |g Nikolay Viktorovich |3 (RuTPU)RU\TPU\pers\34172 |9 17706 | |
| 701 | 1 | |a Kirienko |b V. A. |c specialist in the field of heat, power engineering and thermal engineering |c engineer of Tomsk Polytechnic University |f 1997- |g Viktoriya Andreevna |3 (RuTPU)RU\TPU\pers\46765 | |
| 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 |
| 801 | 2 | |a RU |b 63413507 |c 20220607 |g RCR | |
| 856 | 4 | |u http://earchive.tpu.ru/handle/11683/71096 | |
| 856 | 4 | |u https://doi.org/10.3390/pr9091616 | |
| 942 | |c CF | ||