Designing umbrella-shaped heat-induced channels for oriented heat transfer in asphalt mixtures
In order to regulate the directional transfer and collection of heat in pavements, a novel solution has been proposed, named Umbrella-Shaped Heat-induced Channels (UHC). This UHC is composed of carbon fibers with high axial thermal conductivity and a heat-induced layer. A finite element heat transfe...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-05-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X2400354X |
| _version_ | 1797202135653285888 |
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| author | Lei Jiang Shengyue Wang Minghui Gong Zijia Xiong Jin Fan Zhenghong Xu Jinxiang Hong |
| author_facet | Lei Jiang Shengyue Wang Minghui Gong Zijia Xiong Jin Fan Zhenghong Xu Jinxiang Hong |
| author_sort | Lei Jiang |
| collection | DOAJ |
| description | In order to regulate the directional transfer and collection of heat in pavements, a novel solution has been proposed, named Umbrella-Shaped Heat-induced Channels (UHC). This UHC is composed of carbon fibers with high axial thermal conductivity and a heat-induced layer. A finite element heat transfer model is employed to analyze the heat transfer behaviors of asphalt mixtures. And an indoor irradiation experiment is conducted for feasibility verification. The results indicate that enhancing the thickness of the heat-induced layer or increasing the disparity in thermal conductivity between the heat-induced layer and asphalt mixtures can enhance the oriented heat transfer effect of UHC. The heat-induced layer boosts the horizontal heat flux of the UHC by 60.3% compared to the side without the heat-induced layer. This enhancement is attributed to the secondary thermal convergence effect of the heat-induced layer, which further amplifies the thermal induction and heat collection capabilities of UHC. This phenomenon is crucial for achieving directed heat conduction. The designed UHC can enhance the heat transfer efficiency of the asphalt pavement in the designated direction. Furthermore, it can alleviate the heat island effect, address permafrost thawing and high-temperature rutting issues, and enhance the efficiency of solar energy harvesting on pavements. |
| first_indexed | 2024-04-24T07:58:38Z |
| format | Article |
| id | doaj.art-cb8c0e78273241e0be3b7e581b657e4d |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-04-24T07:58:38Z |
| publishDate | 2024-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-cb8c0e78273241e0be3b7e581b657e4d2024-04-18T04:20:34ZengElsevierCase Studies in Thermal Engineering2214-157X2024-05-0157104323Designing umbrella-shaped heat-induced channels for oriented heat transfer in asphalt mixturesLei Jiang0Shengyue Wang1Minghui Gong2Zijia Xiong3Jin Fan4Zhenghong Xu5Jinxiang Hong6Jiangsu Sobute New Materials Co., Ltd, 118 Liquan Road, Nanjing, 211103, PR China; State Key Laboratory of High Performance Civil Engineering Materials, 118 Liquan Road, Nanjing, 211103, PR China; School of Transportation, Southeast University, Nanjing, 210096, PR ChinaSchool of Transportation, Southeast University, Nanjing, 210096, PR ChinaJiangsu Sobute New Materials Co., Ltd, 118 Liquan Road, Nanjing, 211103, PR China; State Key Laboratory of High Performance Civil Engineering Materials, 118 Liquan Road, Nanjing, 211103, PR ChinaJiangsu Sobute New Materials Co., Ltd, 118 Liquan Road, Nanjing, 211103, PR China; State Key Laboratory of High Performance Civil Engineering Materials, 118 Liquan Road, Nanjing, 211103, PR China; School of Transportation, Southeast University, Nanjing, 210096, PR ChinaJiangsu Sobute New Materials Co., Ltd, 118 Liquan Road, Nanjing, 211103, PR China; State Key Laboratory of High Performance Civil Engineering Materials, 118 Liquan Road, Nanjing, 211103, PR ChinaJiangsu Sobute New Materials Co., Ltd, 118 Liquan Road, Nanjing, 211103, PR China; State Key Laboratory of High Performance Civil Engineering Materials, 118 Liquan Road, Nanjing, 211103, PR ChinaJiangsu Sobute New Materials Co., Ltd, 118 Liquan Road, Nanjing, 211103, PR China; State Key Laboratory of High Performance Civil Engineering Materials, 118 Liquan Road, Nanjing, 211103, PR China; Corresponding author. State Key Laboratory of High Performance Civil Engineering Materials, 118 Liquan Road, Nanjing, 211103, PR China.In order to regulate the directional transfer and collection of heat in pavements, a novel solution has been proposed, named Umbrella-Shaped Heat-induced Channels (UHC). This UHC is composed of carbon fibers with high axial thermal conductivity and a heat-induced layer. A finite element heat transfer model is employed to analyze the heat transfer behaviors of asphalt mixtures. And an indoor irradiation experiment is conducted for feasibility verification. The results indicate that enhancing the thickness of the heat-induced layer or increasing the disparity in thermal conductivity between the heat-induced layer and asphalt mixtures can enhance the oriented heat transfer effect of UHC. The heat-induced layer boosts the horizontal heat flux of the UHC by 60.3% compared to the side without the heat-induced layer. This enhancement is attributed to the secondary thermal convergence effect of the heat-induced layer, which further amplifies the thermal induction and heat collection capabilities of UHC. This phenomenon is crucial for achieving directed heat conduction. The designed UHC can enhance the heat transfer efficiency of the asphalt pavement in the designated direction. Furthermore, it can alleviate the heat island effect, address permafrost thawing and high-temperature rutting issues, and enhance the efficiency of solar energy harvesting on pavements.http://www.sciencedirect.com/science/article/pii/S2214157X2400354XAsphalt pavementDirectional heat conductionHeat-induced channelEnergy harvesting pavementCool pavementPermafrost protection |
| spellingShingle | Lei Jiang Shengyue Wang Minghui Gong Zijia Xiong Jin Fan Zhenghong Xu Jinxiang Hong Designing umbrella-shaped heat-induced channels for oriented heat transfer in asphalt mixtures Case Studies in Thermal Engineering Asphalt pavement Directional heat conduction Heat-induced channel Energy harvesting pavement Cool pavement Permafrost protection |
| title | Designing umbrella-shaped heat-induced channels for oriented heat transfer in asphalt mixtures |
| title_full | Designing umbrella-shaped heat-induced channels for oriented heat transfer in asphalt mixtures |
| title_fullStr | Designing umbrella-shaped heat-induced channels for oriented heat transfer in asphalt mixtures |
| title_full_unstemmed | Designing umbrella-shaped heat-induced channels for oriented heat transfer in asphalt mixtures |
| title_short | Designing umbrella-shaped heat-induced channels for oriented heat transfer in asphalt mixtures |
| title_sort | designing umbrella shaped heat induced channels for oriented heat transfer in asphalt mixtures |
| topic | Asphalt pavement Directional heat conduction Heat-induced channel Energy harvesting pavement Cool pavement Permafrost protection |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X2400354X |
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