HARMONI - first light spectroscopy for the ELT: broadband reflective coatings

2020 ◽  
Author(s):  
Andrea Alejandra Hidalgo Valadez ◽  
Fraser Clarke
Keyword(s):  
Reflective Coatings

Effects of vacuum exposure on stress and spectral shift of high reflective coatings

1993 ◽  
Vol 32 (28) ◽  
pp. 5666 ◽  
Author(s):  
C. J. Stolz ◽  
J. R. Taylor ◽  
W. K. Eickelberg ◽  
J. D. Lindh
Keyword(s):  
Spectral Shift ◽  
Reflective Coatings

scholarly journals Combating Urban Heat Island Effect—A Review of Reflective Pavements and Tree Shading Strategies

Buildings ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 93
Author(s):  
V. R. Sankar Cheela ◽  
Michele John ◽  
Wahidul Biswas ◽  
Prabir Sarker
Keyword(s):  
Urban Heat Island ◽  
Urban Forest ◽  
Critical Role ◽  
Tree Canopy ◽  
Mitigation Measures ◽  
Heat Island ◽  
Human Thermal Comfort ◽  
Urban Heat ◽  
Pavement Temperature ◽  
Reflective Coatings

Pavements occupy about 40% of urban land cover, with 75–80% black top roads, playing a critical role in urban connectivity and mobility. Solar energy is absorbed and stored in pavements leading to an increase in surface temperatures. Decreasing green cover is further contributing to rise in regional temperatures. Due to this activity, the city experiences urban heat island (UHI). This study presents a critical review of the literature on mitigation measures to combat UHI using reflective pavements with an emphasis on durability properties and impacts of tree canopy. The strategies with a focus on application of chip seals, white toppings, and coatings were discussed. Role of surface reflectance, including those from asphalt and concrete pavements, albedo improvements, and technological trends, application of waste materials, and industrial by‐products are presented. Also, urban tree shading systems’ contribution to pavement temperature and microclimate systems is presented. The review shows that the development of mitigation measures using tree shading systems can reduce the pavement temperature during daytime and increase human thermal comfort. The outcomes of this review provide a scope for future studies to develop sustainable and state‐of‐the-art engineering solutions in the field of reflective coatings and urban forest systems.

A Study of Thermal Performance on Cool Colorful Water-Based Reflective Coatings for Building

2011 ◽  
Vol 250-253 ◽  
pp. 536-539
Author(s):  
Pei Wang ◽  
Wen Yan Lv ◽  
Zhi Yong Wei ◽  
Xia Zhen Zhang ◽  
Lian Liu ◽  
...  
Keyword(s):  
Comparative Study ◽  
Surface Temperature ◽  
Thermal Performance ◽  
Temperature Difference ◽  
Surface Temperatures ◽  
Water Based ◽  
Reflective Coatings ◽  
Micro Sphere

This paper presented the results of a comparative study aiming to investigate the effect of reflective coatings on lowering surface temperatures of matrix. Moreover, the important factors of the amount and the color of colored hollow-ceramic micro sphere were discussed. It was demonstrated that the use of reflective coatings could reduce a white surface temperature by 6.5 °C compared to a sample. The temperature difference became to reduce while the color of coatings turned to dark from the white to the yellow.

scholarly journals Research on Low-Brightness and High-Reflective Coatings Suitable for Buildings in Tropical Areas

Coatings ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 829
Author(s):  
Xian Rong ◽  
Lichao Jiao ◽  
Xiangfei Kong ◽  
Guangpu Yuan
Keyword(s):  
Energy Saving ◽  
Heat Insulation ◽  
Residential Building ◽  
Maximum Temperature ◽  
Kuala Lumpur ◽  
Nano Tio2 ◽  
Insulation Coating ◽  
Tropical Areas ◽  
Saving Effect ◽  
Reflective Coatings

In this article, we mixed hollow glass beads with nano-TiO2 and iron oxide red in a certain proportion to prepare a low-brightness, high-reflective, safe, and durable cooling coating throughout the experiments. The coating is suitable for energy-saving in tropical areas. To discuss the energy saving effects of the coating on an exterior envelope in tropical areas, a comparative analysis for two scenario models of a two-story residential building in Kuala Lumpur, Malaysia was conducted. The results indicated that the heat reflective insulation coating could reduce the exterior envelope surface temperature effectively, and the maximum temperature change was about 6–8 °C. Through calculations, it was found that the annual energy saving rate was 12.9%, which showed that the energy saving effect of the heat insulation coating was obvious in Kuala Lumpur. The brightness of the coating was less than 50%, and its comfort and safety met the requirements.

scholarly journals Optical resistance and spectral properties of anti-reflective coatings deposited on LBO crystals by ion beam sputtering

2011 ◽  
Vol 51 (4) ◽  
pp. 303-308 ◽  
Author(s):  
G. Abromavičius ◽  
R. Buzelis ◽  
R. Drazdys ◽  
K. Juškevičius ◽  
S. Kičas ◽  
...  
Keyword(s):  
Spectral Properties ◽  
Ion Beam ◽  
Ion Beam Sputtering ◽  
Beam Sputtering ◽  
Reflective Coatings
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