Analysis of Air Exchange System Influence on Thermal and Concentration Modes in the Local Working Area under Radiant Heating Conditions; Frontiers in Heat and Mass Transfer (FHMT); Vol. 22, iss. 6
| Источник: | Frontiers in Heat and Mass Transfer (FHMT).— .— Bogota: Global Digital Central Vol. 22, iss. 6.— 2024.— P. 1597-1612 |
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| Другие авторы: | , , , , |
| Примечания: | Title screen This study deals with the numerical investigation of combined heat transfer via conduction, laminar natural convection, and surface radiation in a closed rectagular cavity with a radiant heating source. Unsteady two-dimensional equations of mass, momentum, and energy conservation for complex heat transfer process under study were formulated in terms of the vorticity – stream function – temperature variables and solved by means of the finite difference method on a uniform grid. Developed numerical code was validated against two benchmark problems of convective and convective-radiative heat transfer. When analyzing complex heat transfer regularities, we varied the following parameters: dimensionless time 5<t<800, Rayleigh number 6*10^4<Ra<4*10^6, conduction-radiation number 19.71<Nr<78.84, surface emissivity 0.2<e<0.9, emitter length 0.1<D<1, walls thickness 0.05<M<0.25. According to the results of mathematical modelling, it was found that the radiant parameters significantly affected the formation of differential and integral characteristics of conjugate heat transfer. Along with that the convective Nusselt number was slightly changed in geometrical and physical conditions under study. An increase in the walls thickness led to a reduce in the temperature of the air cavity. However, the effect of wall thickness on the convective and radiative Nusselt numbers was not significant Текстовый файл AM_Agreement |
| Язык: | английский |
| Опубликовано: |
2024
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| Предметы: | |
| Online-ссылка: | https://doi.org/10.32604/fhmt.2024.056758 https://www.sciopen.com/article/10.32604/fhmt.2024.056758 |
| Формат: | Электронный ресурс Статья |
| Запись в KOHA: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=683801 |
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| 200 | 1 | |a Analysis of Air Exchange System Influence on Thermal and Concentration Modes in the Local Working Area under Radiant Heating Conditions |f Boris Borisov, Geniy Kuznetsov, Vyacheslav Maksimov [et al.] | |
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| 300 | |a Title screen | ||
| 320 | |a References: 35 tit | ||
| 330 | |a This study deals with the numerical investigation of combined heat transfer via conduction, laminar natural convection, and surface radiation in a closed rectagular cavity with a radiant heating source. Unsteady two-dimensional equations of mass, momentum, and energy conservation for complex heat transfer process under study were formulated in terms of the vorticity – stream function – temperature variables and solved by means of the finite difference method on a uniform grid. Developed numerical code was validated against two benchmark problems of convective and convective-radiative heat transfer. When analyzing complex heat transfer regularities, we varied the following parameters: dimensionless time 5<t<800, Rayleigh number 6*10^4<Ra<4*10^6, conduction-radiation number 19.71<Nr<78.84, surface emissivity 0.2<e<0.9, emitter length 0.1<D<1, walls thickness 0.05<M<0.25. According to the results of mathematical modelling, it was found that the radiant parameters significantly affected the formation of differential and integral characteristics of conjugate heat transfer. Along with that the convective Nusselt number was slightly changed in geometrical and physical conditions under study. An increase in the walls thickness led to a reduce in the temperature of the air cavity. However, the effect of wall thickness on the convective and radiative Nusselt numbers was not significant | ||
| 336 | |a Текстовый файл | ||
| 371 | 0 | |a AM_Agreement | |
| 461 | 1 | |t Frontiers in Heat and Mass Transfer (FHMT) |c Bogota |n Global Digital Central | |
| 463 | 1 | |t Vol. 22, iss. 6 |v P. 1597-1612 |d 2024 | |
| 610 | 1 | |a gas infrared heater | |
| 610 | 1 | |a air exchange system | |
| 610 | 1 | |a local working areas | |
| 610 | 1 | |a temperature fields | |
| 610 | 1 | |a CO2 concentration fields | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a электронный ресурс | |
| 701 | 1 | |a Borisov |b B. V. |c Specialist in the field of thermal engineering |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences |f 1954- |g Boris Vladimirovich |9 16368 | |
| 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 |9 15963 | |
| 701 | 1 | |a Maksimov |b V. I. |c specialist in the field of thermal engineering |c Associate Professor of Tomsk Polytechnic University, Candidate of technical sciences |f 1977- |g Vyacheslav Ivanovich |9 17694 | |
| 701 | 1 | |a Nagornova |b T. A. |c specialist in the field of thermal engineering |c Associate Professor of Tomsk Polytechnic University, Candidate of technical sciences |f 1981- |g Tatiana Aleksandrovna |9 17932 | |
| 701 | 1 | |a Salikhov |b F. Yu. |c specialist in the field of heat and power engineering and thermal engineering |c engineer of Tomsk Polytechnic University |f 2000- |g Feliks Yurjevich |9 88570 | |
| 801 | 0 | |a RU |b 63413507 |c 20251218 |g RCR | |
| 856 | 4 | |u https://doi.org/10.32604/fhmt.2024.056758 |z https://doi.org/10.32604/fhmt.2024.056758 | |
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| 942 | |c CF | ||