Experimental investigation of nano-particle deposited wick Structure's heat transfer characteristics

Recently, nanotechnology attracts more and more attention in heat transfer system. Many studies have shown that using nanofluid as the working fluid can improve the thermal performance of the heat pipe. In this paper, the preliminary effort of applying nano-surface engineering on the heat pipe wick...

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Main Authors: Ruiyu Han, Zetao Wang, Kailun Guo, Chenglong Wang, Dalin Zhang, Wenxi Tian, Suizheng Qiu, Guanghui Su
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2022-12-01
Series:International Journal of Advanced Nuclear Reactor Design and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2468605022000618
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author Ruiyu Han
Zetao Wang
Kailun Guo
Chenglong Wang
Dalin Zhang
Wenxi Tian
Suizheng Qiu
Guanghui Su
author_facet Ruiyu Han
Zetao Wang
Kailun Guo
Chenglong Wang
Dalin Zhang
Wenxi Tian
Suizheng Qiu
Guanghui Su
author_sort Ruiyu Han
collection DOAJ
description Recently, nanotechnology attracts more and more attention in heat transfer system. Many studies have shown that using nanofluid as the working fluid can improve the thermal performance of the heat pipe. In this paper, the preliminary effort of applying nano-surface engineering on the heat pipe wick to fabricate the nano-structured wick structure has been carried out. Experimental investigation has been performed to determine the effect of the heat source power, mesh aperture and the wick surface structure on the total thermal resistance of the wick structure. When the heat source power increased from 20 W to 30 W, then to 50 W, the evaporation resistance decreases 25.9% and 13.7% respectively, while the conduction resistance increases 24.8% at first and then decreases 9.5%. The evaporation resistance is less with than without the wick structure, and it increases with the increase of mesh aperture. When the mesh aperture increases from 75 μm to 150 μm, then to 460 μm, the evaporation resistance increases 1.9% and 1.7% respectively. Whereas, the wick structure, as well as the mesh aperture have slight influence on the conduction resistance. The experimental results suggest that the nano structure on the surface can efficiently decrease the evaporation resistance but increase the conduction resistance at the same time. Compared to the wick structure with smooth surface, the evaporation resistance of nano-surface deposited by 0.01% TiO2 and 0.02% TiO2 has decreased 4.3% and 15.5%, respectively. This study provides a reference for the preparation of the heat pipe with greater performance in the future.
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spelling doaj.art-149414a0c6964718953e3b931a69f6ea2023-02-01T04:27:11ZengKeAi Communications Co., Ltd.International Journal of Advanced Nuclear Reactor Design and Technology2468-60502022-12-0144196204Experimental investigation of nano-particle deposited wick Structure's heat transfer characteristicsRuiyu Han0Zetao Wang1Kailun Guo2Chenglong Wang3Dalin Zhang4Wenxi Tian5Suizheng Qiu6Guanghui Su7School of Nuclear Science and Technology, Shaanxi Key Laboratory of Advanced Nuclear Energy and Technology, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaSchool of Nuclear Science and Technology, Shaanxi Key Laboratory of Advanced Nuclear Energy and Technology, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaCorresponding author.; School of Nuclear Science and Technology, Shaanxi Key Laboratory of Advanced Nuclear Energy and Technology, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaSchool of Nuclear Science and Technology, Shaanxi Key Laboratory of Advanced Nuclear Energy and Technology, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaSchool of Nuclear Science and Technology, Shaanxi Key Laboratory of Advanced Nuclear Energy and Technology, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaSchool of Nuclear Science and Technology, Shaanxi Key Laboratory of Advanced Nuclear Energy and Technology, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaSchool of Nuclear Science and Technology, Shaanxi Key Laboratory of Advanced Nuclear Energy and Technology, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaCorresponding author.; School of Nuclear Science and Technology, Shaanxi Key Laboratory of Advanced Nuclear Energy and Technology, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaRecently, nanotechnology attracts more and more attention in heat transfer system. Many studies have shown that using nanofluid as the working fluid can improve the thermal performance of the heat pipe. In this paper, the preliminary effort of applying nano-surface engineering on the heat pipe wick to fabricate the nano-structured wick structure has been carried out. Experimental investigation has been performed to determine the effect of the heat source power, mesh aperture and the wick surface structure on the total thermal resistance of the wick structure. When the heat source power increased from 20 W to 30 W, then to 50 W, the evaporation resistance decreases 25.9% and 13.7% respectively, while the conduction resistance increases 24.8% at first and then decreases 9.5%. The evaporation resistance is less with than without the wick structure, and it increases with the increase of mesh aperture. When the mesh aperture increases from 75 μm to 150 μm, then to 460 μm, the evaporation resistance increases 1.9% and 1.7% respectively. Whereas, the wick structure, as well as the mesh aperture have slight influence on the conduction resistance. The experimental results suggest that the nano structure on the surface can efficiently decrease the evaporation resistance but increase the conduction resistance at the same time. Compared to the wick structure with smooth surface, the evaporation resistance of nano-surface deposited by 0.01% TiO2 and 0.02% TiO2 has decreased 4.3% and 15.5%, respectively. This study provides a reference for the preparation of the heat pipe with greater performance in the future.http://www.sciencedirect.com/science/article/pii/S2468605022000618Wick structureNano structureThermal resistance
spellingShingle Ruiyu Han
Zetao Wang
Kailun Guo
Chenglong Wang
Dalin Zhang
Wenxi Tian
Suizheng Qiu
Guanghui Su
Experimental investigation of nano-particle deposited wick Structure's heat transfer characteristics
International Journal of Advanced Nuclear Reactor Design and Technology
Wick structure
Nano structure
Thermal resistance
title Experimental investigation of nano-particle deposited wick Structure's heat transfer characteristics
title_full Experimental investigation of nano-particle deposited wick Structure's heat transfer characteristics
title_fullStr Experimental investigation of nano-particle deposited wick Structure's heat transfer characteristics
title_full_unstemmed Experimental investigation of nano-particle deposited wick Structure's heat transfer characteristics
title_short Experimental investigation of nano-particle deposited wick Structure's heat transfer characteristics
title_sort experimental investigation of nano particle deposited wick structure s heat transfer characteristics
topic Wick structure
Nano structure
Thermal resistance
url http://www.sciencedirect.com/science/article/pii/S2468605022000618
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AT chenglongwang experimentalinvestigationofnanoparticledepositedwickstructuresheattransfercharacteristics
AT dalinzhang experimentalinvestigationofnanoparticledepositedwickstructuresheattransfercharacteristics
AT wenxitian experimentalinvestigationofnanoparticledepositedwickstructuresheattransfercharacteristics
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