Heat transfer in a two-phase closed thermosyphon working in Polar Regions
| Parent link: | Thermal Science and Engineering Progress Vol. 22.— 2021.— [100846, 12 p.] |
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| مؤلف مشترك: | |
| مؤلفون آخرون: | , , , , , |
| الملخص: | Title screen The observed influence of ambient air temperature on ground temperature in the Far North is an urgent problem as excessive warming of the ground may cause permafrost thawing and structural instability of the built environment. A promising solution is to use thermosyphon-based cooling systems for thermal stabilization of the ground surrounding the piles or other supporting elements of special constructions in the Far North. In this work, we experimentally studied the influence of air and ground temperatures and heating surface temperature that simulates the operation of heat-loaded equipment on the mechanisms of the condensate formation in a thermosyphon. We determined the effect of the thermosyphon operation on the change in ground temperature in the Far North and found the possibility of operation of the thermosyphon-based cooling system at air temperatures in the range of 4–10 °C. In addition, it was found that with an increase in the ambient air temperature from 4 to 10 °C, the ground temperature increased by 5–5.5 °C without the thermosyphon and by 3.1–4 °C with the thermosyphon. The operation of the thermosyphon in the ground layer made possible a two-fold reduction at least of its temperature, not only in close vicinity of the evaporation section, but also at a depth exceeding the height of the thermosyphon evaporation section. We also showed that there are two condensation modes (drop-streak and film-streak) when the heat flux supplied to the lower cover was between 0.7 and 5.1 kW/m2, and the condensation section was cooled due to natural convection. Режим доступа: по договору с организацией-держателем ресурса |
| منشور في: |
2021
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| الموضوعات: | |
| الوصول للمادة أونلاين: | https://doi.org/10.1016/j.tsep.2021.100846 |
| التنسيق: | الكتروني فصل الكتاب |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663239 |
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| 200 | 1 | |a Heat transfer in a two-phase closed thermosyphon working in Polar Regions |f G. V. Kuznetsov, K. O. Ponomarev, D. V. Feoktistov [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 80 tit.] | ||
| 330 | |a The observed influence of ambient air temperature on ground temperature in the Far North is an urgent problem as excessive warming of the ground may cause permafrost thawing and structural instability of the built environment. A promising solution is to use thermosyphon-based cooling systems for thermal stabilization of the ground surrounding the piles or other supporting elements of special constructions in the Far North. In this work, we experimentally studied the influence of air and ground temperatures and heating surface temperature that simulates the operation of heat-loaded equipment on the mechanisms of the condensate formation in a thermosyphon. We determined the effect of the thermosyphon operation on the change in ground temperature in the Far North and found the possibility of operation of the thermosyphon-based cooling system at air temperatures in the range of 4–10 °C. In addition, it was found that with an increase in the ambient air temperature from 4 to 10 °C, the ground temperature increased by 5–5.5 °C without the thermosyphon and by 3.1–4 °C with the thermosyphon. The operation of the thermosyphon in the ground layer made possible a two-fold reduction at least of its temperature, not only in close vicinity of the evaporation section, but also at a depth exceeding the height of the thermosyphon evaporation section. We also showed that there are two condensation modes (drop-streak and film-streak) when the heat flux supplied to the lower cover was between 0.7 and 5.1 kW/m2, and the condensation section was cooled due to natural convection. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Thermal Science and Engineering Progress | ||
| 463 | |t Vol. 22 |v [100846, 12 p.] |d 2021 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a thermosyphon | |
| 610 | 1 | |a air temperature | |
| 610 | 1 | |a ground temperature | |
| 610 | 1 | |a polar regions | |
| 610 | 1 | |a heat transfer | |
| 610 | 1 | |a термосифоны | |
| 610 | 1 | |a температура воздуха | |
| 610 | 1 | |a полярные области | |
| 610 | 1 | |a теплопередача | |
| 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 Ponomarev |b K. O. |c specialist in the field of thermal engineering |c engineer of Tomsk Polytechnic University |f 1993- |g Konstantin Olegovich |3 (RuTPU)RU\TPU\pers\35642 |9 18811 | |
| 701 | 1 | |a Feoktistov |b D. V. |c Specialist in the field of thermal engineering |c Associate Professor; Deputy Director of Tomsk Polytechnic University, Candidate of technical sciences |f 1983- |g Dmitriy Vladimirovich |3 (RuTPU)RU\TPU\pers\34158 |9 17698 | |
| 701 | 1 | |a Orlova |b E. G. |c specialist in the field of thermal engineering |c Associate Professor of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1991- |g Evgeniya Georgievna |3 (RuTPU)RU\TPU\pers\34157 |9 17697 | |
| 701 | 1 | |a Lyulin |b Yu. V. |g Yury Vyacheslavovich | |
| 701 | 1 | |a Ouerdane |b H. |g Henni | |
| 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 |
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| 856 | 4 | |u https://doi.org/10.1016/j.tsep.2021.100846 | |
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