Example of metal-multi-dielectric-metal cooling metamaterial use in engineering thermal radiation.
Clicks: 352
ID: 49603
2019
This paper introduces radiative cooling metamaterial use in engineering thermal radiation based on metal-multi-dielectric-metal (MMDM) structure. The measured average absorption of the MMDM from 15° to 75° in the "atmosphere window" is 0.81, and the absorption range of the structure hardly changes with the incident angles. Without considering solar radiation, at the thermal conductivity of 6.9 W·m·K, the surface temperature is 10.8°C lower than the ambient temperature (300 K), and the cooling power is 102 W·m. Importantly, when the surface temperature is higher than the ambient temperature, this radiative cooler can lower the surface temperature in engineering thermal radiation with a higher thermal conductivity at the same cooling power.
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| Authors | Wang, Dong;Zhu, Yeqing;Fang, Cheng;He, Ping;Ye, Yonghong; |
| Journal | Applied optics |
| Year | 2019 |
| DOI | 10.1364/AO.58.007035 |
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