The optical properties of black coatings and their estimated cooling effect and cooling energy savings potential

The 6th Asia-Pacific Power and Energy Engineering Conference (APPEEC 2014)——The optical properties of coatings pigmented with different black colorants were systematically investigated and their surface temperatures and cooling energy savings were estimated. The black coatings pigmented with chromite iron nickel black and manganese ferrite black spinel colorants are not cool enough to be energy efficient cool black coatings. The cool black coatings pigmented with NIR-transmitting perylene black and dioxazine purple colorants possess a green shade and a violet shade, respectively. The estimated surface temperature reduction values and annual cooling energy savings in Beijing range from 3.0 °C and 1.21 kWhm-2yr-1 for the black coating pigmented with chromite iron nickel colorant to 13.8 °C and 5.52 kWhm-2yr-1 for the black coating pigmented with dioxazine purple colorant, respectively.

关键词： 光学性质 冷却效果 黑色涂层 冷却节能 The 6th Asia-Pacific Power and Energy Engineering Conference (APPEEC 2014)

主讲人：Prof. Weidong Zhang 机构：China State Construction Engineering Corporation., Ltd

时长：0:12:33 年代：2014年