7-days of FREE Audio papers, translation & more with Prime
7-days of FREE Prime access
7-days of FREE Audio papers, translation & more with Prime
7-days of FREE Prime access
https://doi.org/10.1016/j.compscitech.2021.108743
Copy DOIJournal: Composites Science and Technology | Publication Date: Feb 25, 2021 |
Citations: 26 |
Current passive radiative cooling is a promising alternative to electrical cooling systems, but it is still difficult to be used in cooling devices with an internal heat source. Hence, we here present a ternary channel efficient passive cooling composites by embedding hexagonal boron nitride (h-BN) into high-density polyethylene (HDPE). Like the traditional passive radiative cooling materials, the h-BN/HDPE composite possesses a high solar reflectance (~87%) that minimizes solar heat gain, and a high thermal emittance (~0.71) that maximizes radiative heat loss, but the composites also have a high thermal conductivity (~1.47 W/(m·K)) that maximizes the internal heat conduction. Therefore, the combination of the optical and thermal properties allows for the LED's temperature drops of 5 °C, compared with the bare LED, under the average solar intensity of 1100 W/m2. The notably cooling effect provides the guidance for the future application of the ternary channel efficient passive cooling composites in cooling the devices with internal heat.
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.