The efficiency of heat transfer through the ash deposits on the heat exchange surfaces by burning coal and coal-water fuels; Journal of the Energy Institute; Vol. 91, iss. 6
| Parent link: | Journal of the Energy Institute Vol. 91, iss. 6.— 2018.— [P. 1091-1101] |
|---|---|
| Korporace: | , |
| Další autoři: | , , , |
| Shrnutí: | Title screen The results of the numerical simulation of heat transfer from the combustion products of coal and coal-water fuels (CWF) to the internal environment. The mathematical simulation has been carried out on the sample of the pipe surfaces of the combustion chamber of the boiler unit. The change in the characteristics of heat transfer (change of thermochemical characteristics) in the conditions of formation of the ash deposits have been taken into account. According to the results of the numerical simulation, the comparative analysis of the efficiency of heat transfer has been carried out from the furnace environment to the inside pipe coolant (water, air, or water vapor) from the combustion of coal and coal-water fuels. It has been established that, in the initial period of the boiler unit operation during coal fuel combustion the efficiency of heat transfer from the combustion products of the internal environment is higher than when using CWF. The efficiency of heat transfer in CWF combustion conditions is more at large times of the boiler unit. According to the results the numerical simulation of the temperature distributions in the system “pipeline environment - pipe wall - a layer of ash - the products of combustion” have been obtained. A significant decrease in heat flux from the combustion products to the inside pipe coolant in the case of coal combustion compared to CWF has been found. It has been proved that this is due primarily to the fact that massive and strong ash deposits are formed during coal combustion. Режим доступа: по договору с организацией-держателем ресурса |
| Jazyk: | angličtina |
| Vydáno: |
2018
|
| Témata: | |
| On-line přístup: | https://doi.org/10.1016/j.joei.2017.06.014 |
| Médium: | Elektronický zdroj Kapitola |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=665664 |
MARC
| LEADER | 00000naa0a2200000 4500 | ||
|---|---|---|---|
| 001 | 665664 | ||
| 005 | 20250505151513.0 | ||
| 035 | |a (RuTPU)RU\TPU\network\36867 | ||
| 035 | |a RU\TPU\network\30434 | ||
| 090 | |a 665664 | ||
| 100 | |a 20211028d2018 k||y0rusy50 ba | ||
| 101 | 0 | |a eng | |
| 102 | |a NL | ||
| 135 | |a drcn ---uucaa | ||
| 181 | 0 | |a i | |
| 182 | 0 | |a b | |
| 200 | 1 | |a The efficiency of heat transfer through the ash deposits on the heat exchange surfaces by burning coal and coal-water fuels |f S. V. Syrodoy, G. V. Kuznetsov, N. Yu. Gutareva, V. V. Solomatov | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 57 tit.] | ||
| 330 | |a The results of the numerical simulation of heat transfer from the combustion products of coal and coal-water fuels (CWF) to the internal environment. The mathematical simulation has been carried out on the sample of the pipe surfaces of the combustion chamber of the boiler unit. The change in the characteristics of heat transfer (change of thermochemical characteristics) in the conditions of formation of the ash deposits have been taken into account. According to the results of the numerical simulation, the comparative analysis of the efficiency of heat transfer has been carried out from the furnace environment to the inside pipe coolant (water, air, or water vapor) from the combustion of coal and coal-water fuels. It has been established that, in the initial period of the boiler unit operation during coal fuel combustion the efficiency of heat transfer from the combustion products of the internal environment is higher than when using CWF. The efficiency of heat transfer in CWF combustion conditions is more at large times of the boiler unit. According to the results the numerical simulation of the temperature distributions in the system “pipeline environment - pipe wall - a layer of ash - the products of combustion” have been obtained. A significant decrease in heat flux from the combustion products to the inside pipe coolant in the case of coal combustion compared to CWF has been found. It has been proved that this is due primarily to the fact that massive and strong ash deposits are formed during coal combustion. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Journal of the Energy Institute | ||
| 463 | |t Vol. 91, iss. 6 |v [P. 1091-1101] |d 2018 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a coal-water fuel | |
| 610 | 1 | |a coal | |
| 610 | 1 | |a ash deposition | |
| 610 | 1 | |a heat exchange | |
| 610 | 1 | |a efficiency | |
| 610 | 1 | |a водоугольное топливо | |
| 610 | 1 | |a каменный уголь | |
| 610 | 1 | |a эффективность | |
| 610 | 1 | |a зольные отложения | |
| 610 | 1 | |a теплообмен | |
| 610 | 1 | |a сжигание | |
| 701 | 1 | |a Syrodoy |b S. V. |c specialist in the field of thermal engineering |c Professor of Tomsk Polytechnic University, Doctor of Technical Sciences |f 1988- |g Semen Vladimirovich |3 (RuTPU)RU\TPU\pers\35117 |9 18392 | |
| 701 | 1 | |a Kuznetsov |b G. V. |c Specialist in the field of heat power energy |c Professor of Tomsk Polytechnic University, Doctor of Physical and Mathematical Sciences |f 1949- |g Geny Vladimirovich |3 (RuTPU)RU\TPU\pers\31891 |9 15963 | |
| 701 | 1 | |a Gutareva |b N. Yu. |c linguist |c Associate Professor of Tomsk Polytechnic University, Candidate of pedagogical sciences |f 1979- |g Nadezhda Yurievna |3 (RuTPU)RU\TPU\pers\31044 |9 15274 | |
| 701 | 1 | |a Solomatov |b V. V. |g Vladimir Vasiljevich | |
| 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 Школа базовой инженерной подготовки |b Отделение иностранных языков |3 (RuTPU)RU\TPU\col\23510 |
| 801 | 2 | |a RU |b 63413507 |c 20211028 |g RCR | |
| 850 | |a 63413507 | ||
| 856 | 4 | |u https://doi.org/10.1016/j.joei.2017.06.014 | |
| 942 | |c CF | ||