期刊
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
卷 221, 期 -, 页码 155-163出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jqsrt.2018.09.015
关键词
Thermal emission; Radiative cooling; Solar energy; Gratings; Multilayers design; Nanostructures
资金
- French Government program Investissements d'Avenir (LABEX INTERACTIFS) [ANR-11-LABX-0017-01]
- ANR RADCOOL [ANR-17-CE06-0002-01]
We propose in this article a method to conceive radiative coolers that are reflective in the solar spectrum and emissive in the transparency window of the atmosphere (8-13 mu m). We choose an approach combining thermal control capacities of gratings and multi-layers. It is the first time that simple gratings are used for radiative cooling applications. We use optimized BN, SiC and SiO2 gratings, which have emissivity peaks in the transparency window. We place under these gratings a metal/dielectric multilayer structure to obtain a near perfect reflectivity in the solar spectrum and to enhance the emissivity in the transparency window. The optimized structures produce a good radiative cooling power density up to 80W.m(-2) at night and a mean daytime radiative cooling power density of 55 W.m(-2), with local atmospherical and solar conditions in Poitiers. (C) 2018 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据