IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v13y2020i3p765-d318470.html
   My bibliography  Save this article

Investigation of Start-Up Characteristics of Thermosyphons Modified with Different Hydrophilic and Hydrophobic Inner Surfaces

Author

Listed:
  • Xiaolong Ma

    (School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212000, China)

  • Zhongchao Zhao

    (School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212000, China)

  • Pengpeng Jiang

    (School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212000, China)

  • Shan Yang

    (School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212000, China)

  • Shilin Li

    (School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212000, China)

  • Xudong Chen

    (School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212000, China)

Abstract

In this paper, the influence of wettability properties on the start-up characteristics of two-phase closed thermosyphons (TPCTs) is investigated. Chemical coating and etching techniques are performed to prepare the surfaces with different wettabilities that is quantified in the form of the contact angle (CA). The 12 TPCTs are processed including the same CA and a different CA combination on the inner surfaces inside both the evaporator and the condenser sections. For TPCTs with the same wettability properties, the introduction of hydrophilic properties inside the evaporator section not only significantly reduces the start-up time but also decreases the start-up temperature. For example, the start-up time of a TPCT with CA = 28° at 40 W, 60 W and 80 W is 46%, 50% and 55% shorter than that of a TPCT with a smooth surface and the wall superheat degrees is 55%, 39% and 28% lower, respectively. For TPCTs with combined hydrophilic and hydrophobic properties, the start-up time spent on the evaporator section with hydrophilic properties is shorter than that of the hydrophobic evaporator section and the smaller CA on the condenser section shows better results. The start-up time of a TPCT with CA = 28° on the evaporator section and CA = 105° on the condenser section has the best start-up process at 40 W, 60 W and 80 W which is 14%, 22% and 26% shorter than that of a TPCT with smooth surface. Thus, the hydrophilic and hydrophobic modifications play a significant role in promoting the start-up process of a TPCT.

Suggested Citation

  • Xiaolong Ma & Zhongchao Zhao & Pengpeng Jiang & Shan Yang & Shilin Li & Xudong Chen, 2020. "Investigation of Start-Up Characteristics of Thermosyphons Modified with Different Hydrophilic and Hydrophobic Inner Surfaces," Energies, MDPI, vol. 13(3), pages 1-16, February.
  • Handle: RePEc:gam:jeners:v:13:y:2020:i:3:p:765-:d:318470
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/13/3/765/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1996-1073/13/3/765/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Jouhara, Hussam & Merchant, Hasnain, 2012. "Experimental investigation of a thermosyphon based heat exchanger used in energy efficient air handling units," Energy, Elsevier, vol. 39(1), pages 82-89.
    2. Jafari, Davoud & Franco, Alessandro & Filippeschi, Sauro & Di Marco, Paolo, 2016. "Two-phase closed thermosyphons: A review of studies and solar applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 53(C), pages 575-593.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Qin, Siyu & Ji, Ruiyang & Miao, Chengyu & Jin, Liwen & Yang, Chun & Meng, Xiangzhao, 2024. "Review of enhancing boiling and condensation heat transfer: Surface modification," Renewable and Sustainable Energy Reviews, Elsevier, vol. 189(PA).

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Jouhara, Hussam & Meskimmon, Richard, 2014. "Heat pipe based thermal management systems for energy-efficient data centres," Energy, Elsevier, vol. 77(C), pages 265-270.
    2. Pei, Wansheng & Zhang, Mingyi & Li, Shuangyang & Lai, Yuanming & Dong, Yuanhong & Jin, Long, 2019. "Laboratory investigation of the efficiency optimization of an inclined two-phase closed thermosyphon in ambient cool energy utilization," Renewable Energy, Elsevier, vol. 133(C), pages 1178-1187.
    3. Jadhav, T.S. & Lele, M.M., 2016. "Analysis of annual energy savings in air conditioning using different heat pipe heat exchanger configurations integrated with and without evaporative cooling," Energy, Elsevier, vol. 109(C), pages 876-885.
    4. Jafari, Davoud & Wits, Wessel W., 2018. "The utilization of selective laser melting technology on heat transfer devices for thermal energy conversion applications: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 91(C), pages 420-442.
    5. Rafal Andrzejczyk, 2018. "Experimental Investigation of the Thermal Performance of a Wickless Heat Pipe Operating with Different Fluids: Water, Ethanol, and SES36. Analysis of Influences of Instability Processes at Working Ope," Energies, MDPI, vol. 12(1), pages 1-28, December.
    6. Danielewicz, J. & Sayegh, M.A. & Śniechowska, B. & Szulgowska-Zgrzywa, M. & Jouhara, H., 2014. "Experimental and analytical performance investigation of air to air two phase closed thermosyphon based heat exchangers," Energy, Elsevier, vol. 77(C), pages 82-87.
    7. Qin, Siyu & Ji, Ruiyang & Miao, Chengyu & Jin, Liwen & Yang, Chun & Meng, Xiangzhao, 2024. "Review of enhancing boiling and condensation heat transfer: Surface modification," Renewable and Sustainable Energy Reviews, Elsevier, vol. 189(PA).
    8. Cao, Jingyu & Zheng, Zhanying & Asim, Muhammad & Hu, Mingke & Wang, Qiliang & Su, Yuehong & Pei, Gang & Leung, Michael K.H., 2020. "A review on independent and integrated/coupled two-phase loop thermosyphons," Applied Energy, Elsevier, vol. 280(C).
    9. Jouhara, Hussam & Almahmoud, Sulaiman & Chauhan, Amisha & Delpech, Bertrand & Bianchi, Giuseppe & Tassou, Savvas A. & Llera, Rocio & Lago, Francisco & Arribas, Juan José, 2017. "Experimental and theoretical investigation of a flat heat pipe heat exchanger for waste heat recovery in the steel industry," Energy, Elsevier, vol. 141(C), pages 1928-1939.
    10. Wang, Yinfeng & Lu, Beibei & Chen, Haijun & Fan, Hongtu & Taylor, Robert A. & Zhu, Yuezhao, 2017. "Experimental investigation of the thermal performance of a horizontal two-phase loop thermosiphon suitable for solar parabolic trough receivers operating at 200–400 °C," Energy, Elsevier, vol. 132(C), pages 289-304.
    11. Jouhara, H. & Milko, J. & Danielewicz, J. & Sayegh, M.A. & Szulgowska-Zgrzywa, M. & Ramos, J.B. & Lester, S.P., 2016. "The performance of a novel flat heat pipe based thermal and PV/T (photovoltaic and thermal systems) solar collector that can be used as an energy-active building envelope material," Energy, Elsevier, vol. 108(C), pages 148-154.
    12. Deng, Jinchang & Zhou, Fubao & Shi, Bobo & Torero, José L. & Qi, Haining & Liu, Peng & Ge, Shaokun & Wang, Zhiyu & Chen, Chen, 2020. "Waste heat recovery, utilization and evaluation of coalfield fire applying heat pipe combined thermoelectric generator in Xinjiang, China," Energy, Elsevier, vol. 207(C).
    13. Ma, Limin & Shang, Linlin & Zhong, Dan & Ji, Zhongli, 2017. "Experimental investigation of a two-phase closed thermosyphon charged with hydrocarbon and Freon refrigerants," Applied Energy, Elsevier, vol. 207(C), pages 665-673.
    14. Bryś, Krystyna & Bryś, Tadeusz & Sayegh, Marderos Ara & Ojrzyńska, Hanna, 2020. "Characteristics of heat fluxes in subsurface shallow depth soil layer as a renewable thermal source for ground coupled heat pumps," Renewable Energy, Elsevier, vol. 146(C), pages 1846-1866.
    15. Li, Chenglin & Zhang, Guozhu & Xiao, Suguang & Shi, Yehui & Xu, Chenghua & Sun, Yinjuan, 2023. "Numerical investigation on thermal performance enhancement mechanism of tunnel lining GHEs using two-phase closed thermosyphons for building cooling," Renewable Energy, Elsevier, vol. 212(C), pages 875-886.
    16. Jouhara, Hussam & Ajji, Zaki & Koudsi, Yahia & Ezzuddin, Hatem & Mousa, Nisreen, 2013. "Experimental investigation of an inclined-condenser wickless heat pipe charged with water and an ethanol–water azeotropic mixture," Energy, Elsevier, vol. 61(C), pages 139-147.
    17. Pei, Wansheng & Zhang, Mingyi & Lai, Yuanming & Yan, Zhongrui & Li, Shuangyang, 2019. "Evaluation of the ground heat control capacity of a novel air-L-shaped TPCT-ground (ALTG) cooling system in cold regions," Energy, Elsevier, vol. 179(C), pages 655-668.
    18. Chan, C.W. & Siqueiros, E. & Ling-Chin, J. & Royapoor, M. & Roskilly, A.P., 2015. "Heat utilisation technologies: A critical review of heat pipes," Renewable and Sustainable Energy Reviews, Elsevier, vol. 50(C), pages 615-627.
    19. Wang, Wei-Wei & Zhang, Hong-Liang & Song, Yong-Juan & Song, Jia-Wei & Shi, Dun-Ke & Zhao, Fu-Yun & Cai, Yang, 2022. "Fluid flow and thermal performance of the pulsating heat pipes facilitated with solar collectors: Experiments, theories and GABPNN machine learning," Renewable Energy, Elsevier, vol. 200(C), pages 1533-1547.
    20. Jafari, Davoud & Franco, Alessandro & Filippeschi, Sauro & Di Marco, Paolo, 2016. "Two-phase closed thermosyphons: A review of studies and solar applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 53(C), pages 575-593.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:13:y:2020:i:3:p:765-:d:318470. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.