IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v76y2014icp468-476.html
   My bibliography  Save this article

Cooling performance enhancement of LED (Light Emitting Diode) using nano-pastes for energy conversion application

Author

Listed:
  • Kim, Chang Min
  • Kang, Yong Tae

Abstract

LED (Light Emitting Diode) has been expected as the next generation of lighting system due to its high efficiency. However, the hot spot problem of the LED is very critical for its lifetime and efficiency. TIMs (Thermal Interface Materials) have been used to enhance the cooling performance of the LED. However its thermal conductivity is not high enough to overcome the hot spot problem. In this study, nano-pastes are made by adding CNT (carbon nanotube) and graphene to the thermal grease to enhance the heat dissipation. It is found that the thermal conductivities of CNT grease and graphene grease enhance up to 16% and 6% at 0.75 wt% of the nanoparticles, respectively, compared with the pure thermal grease. The cooling performances of the LED package with applied CNT paste and graphene paste are enhanced by reducing the LED chip temperature 7.5 °C and 5.5 °C at 0.75 wt% of nanoparticles, respectively. It is also found that the nano-paste materials help the enhancement of heat spreading to remove the hot spot problem.

Suggested Citation

  • Kim, Chang Min & Kang, Yong Tae, 2014. "Cooling performance enhancement of LED (Light Emitting Diode) using nano-pastes for energy conversion application," Energy, Elsevier, vol. 76(C), pages 468-476.
    • Handle: RePEc:eee:energy:v:76:y:2014:i:c:p:468-476
    DOI: 10.1016/j.energy.2014.08.039
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S036054421400975X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2014.08.039?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Kwon, Ohkyung & Cha, Dongan & Park, Chasik, 2013. "Performance evaluation of a two-stage compression heat pump system for district heating using waste energy," Energy, Elsevier, vol. 57(C), pages 375-381.
    2. Nam, Seong Rim & Jung, Chung Woo & Choi, Chang-Hwan & Kang, Yong Tae, 2013. "Cooling performance enhancement of LED (light emitting diode) packages with carbon nanogrease," Energy, Elsevier, vol. 60(C), pages 195-203.
    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. Mo, Songping & Ye, Jiarong & Jia, Lisi & Chen, Ying, 2022. "Properties and performance of hybrid suspensions of MPCM/nanoparticles for LED thermal management," Energy, Elsevier, vol. 239(PE).

    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. Li, Yongcai & Li, Wuyan & Liu, Zongsheng & Lu, Jun & Zeng, Liyue & Yang, Lulu & Xie, Ling, 2017. "Theoretical and numerical study on performance of the air-source heat pump system in Tibet," Renewable Energy, Elsevier, vol. 114(PB), pages 489-501.
    2. Arat, Halit & Arslan, Oguz, 2017. "Exergoeconomic analysis of district heating system boosted by the geothermal heat pump," Energy, Elsevier, vol. 119(C), pages 1159-1170.
    3. Yazid, Muhammad Noor Afiq Witri Muhammad & Sidik, Nor Azwadi Che & Yahya, Wira Jazair, 2017. "Heat and mass transfer characteristics of carbon nanotube nanofluids: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 80(C), pages 914-941.
    4. Averfalk, Helge & Ingvarsson, Paul & Persson, Urban & Gong, Mei & Werner, Sven, 2017. "Large heat pumps in Swedish district heating systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 79(C), pages 1275-1284.
    5. Ibrahim, Oussama & Fardoun, Farouk & Younes, Rafic & Louahlia-Gualous, Hasna, 2014. "Air source heat pump water heater: Dynamic modeling, optimal energy management and mini-tubes condensers," Energy, Elsevier, vol. 64(C), pages 1102-1116.
    6. Lund, Henrik & Werner, Sven & Wiltshire, Robin & Svendsen, Svend & Thorsen, Jan Eric & Hvelplund, Frede & Mathiesen, Brian Vad, 2014. "4th Generation District Heating (4GDH)," Energy, Elsevier, vol. 68(C), pages 1-11.
    7. Xie, Jian & Xu, Jinliang & Xing, Feng & Wang, Zixuan & Liu, Huan, 2014. "The phase separation concept condensation heat transfer in horizontal tubes for low-grade energy utilization," Energy, Elsevier, vol. 69(C), pages 787-800.
    8. Zheng, Danxing & Jing, Xuye, 2013. "Chemical amplifier and energy utilization principles of heat conversion cycle systems," Energy, Elsevier, vol. 63(C), pages 180-188.
    9. Lin, Ying & Fan, Yubin & Yu, Meng & Jiang, Long & Zhang, Xuejun, 2022. "Performance investigation on an air source heat pump system with latent heat thermal energy storage," Energy, Elsevier, vol. 239(PA).
    10. Fangtian Sun & Yonghua Xie & Svend Svendsen & Lin Fu, 2020. "New Low-Temperature Central Heating System Integrated with Industrial Exhausted Heat Using Distributed Electric Compression Heat Pumps for Higher Energy Efficiency," Energies, MDPI, vol. 13(24), pages 1-17, December.
    11. Kılkış, Şiir, 2015. "Exergy transition planning for net-zero districts," Energy, Elsevier, vol. 92(P3), pages 515-531.

    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:eee:energy:v:76:y:2014:i:c:p:468-476. 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: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    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.