Results 31 to 40 of about 1,091,681 (196)

Reflections on the solar-stellar connection [PDF]

Publications of the Astronomical Society of the Pacific, 1985
The achievements of optical astronomy in the investigation of the sun as a typical star in connection with the study of stellar evolution are reviewed, with emphasis given to the accomplishments of George Ellery Hale. Consideration is given to the discovery of magnetic fields on the sun; measurements of temperatures in the solar corona; and the early ...
openaire   +1 more source

Standardization of solar mirror reflectance measurements - Round robin test [PDF]

, 2010
Within the SolarPaces Task III standardization activities, DLR, CIEMAT, and NREL have concentrated on optimizing the procedure to measure the reflectance of solar mirrors.
Fernández-García, Aránzazu, Meyen, S., Lüpfert, Eckhard, Kennedy, C., Lupfert, E., Meyen, Stephanie, Fernandez-Garcia, A., Kennedy, Cheryl   +7 more
core  

The effect of colour on the thermal performance of building integrated solar collectors [PDF]

, 2010
The use of solar collectors with coloured absorbers for water heating is an area of particular interest when considering their integration with buildings.
Carson, James K., Duke, Mike, Anderson, Timothy Nicholas   +2 more
core   +1 more source

Clothing reflectance effects on mean radiant temperature and outdoor thermal comfort under high solar radiation

Case Studies in Thermal Engineering
Urban heat stress is intensifying due to climate change and urban heat island (UHI) effects, increasing the importance of personal thermal adaptation in outdoor environments.
Jihui Yuan, Chaoxiang Zhang, Yasuhiro Shimazaki, Jiale Chai, Xiangfei Kong   +4 more
doaj   +1 more source

Standard Test Methods for Rating of Solar Reflectance of Built-Up Surfaces and Potential Use of Satellite Remote Sensors

Energies, 2021
More and more attention is being paid to the solar reflectance of built-up surfaces due to its influence on the summer heating of buildings and urban areas and the consequent effects on energy needs for air conditioning, as well as on the peak load of ...
Sofia Costanzini, Chiara Ferrari, Francesca Despini, Alberto Muscio   +3 more
doaj   +1 more source

Parameters and method to evaluate the solar reflectance properties of reflector materials for concentrating solar power technology - Official SolarPACES reflectance guideline verstion 2.5 [PDF]

, 2013
The goal of this document is to serve as guidance on the relevant parameters and measurement possibilities to reliably evaluate the reflectance quality of a solar reflector material.
Meyen, Stephanie, and , others
core  

OPTICAL CHARACTERISATION OF REFLECTOR MATERIAL FOR CONCENTRATING SOLAR POWER TECHNOLOGY [PDF]

, 2009
In order to evaluate the quality and suitability of reflector materials for concentrating solar power (CSP) applications a measuring procedure has been developed for the determination of optical key values.
Pernpeintner, Johannes, Schiricke, Björn, Lüpfert, Eckhard, Meyen , Stephanie, Fend, Thomas, Meyen, Stephanie, Fend , Thomas   +6 more
core  

Eficiência térmica de materiais de cobertura

Ambiente Construído
Resumo Acorreta especificação dos materiais de cobertura pode contribuir tanto para a melhoria da eficiência energética em edificações como para a mitigação do efeito de ilha de calor urbana.
Lígia Parreira Muniz-Gäal, Cláudia Cotrim Pezzuto, Marcius Fabius Henriques de Carvalho, Lia Toledo Moreira Mota   +3 more
doaj   +1 more source

Simulation of Sentinel-2 Bottom of Atmosphere Reflectance Using Shadow Parameters on a Deciduous Forest in Thailand

ISPRS International Journal of Geo-Information, 2020
The shadow fraction of the canopy is an important factor in Bidirectional Reflectance Distribution Function (BRDF) and in estimating physical quantities, such as tree height and biomass.
Takumi Fujiwara, Wataru Takeuchi
doaj   +1 more source

The effect of soiling on the reflectance of solar reflector materials - Model for prediction of incidence angle dependent reflectance and attenuation due to dust deposition

, 2022
S.258-268The accumulation of dust and soil on the surface of solar reflectors is an important factor reducing the effective use of solar energy, especially for concentrating solar power plants.
Nitz, Peter, Heimsath, Anna
core   +1 more source