Results 131 to 140 of about 291 (179)
Human-Caused High Direct Mortality in Birds: Unsustainable Trends and Ameliorative Actions. [PDF]
Animals (Basel)Kaplan G.
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Proceedings of the ISES Solar World Congress 2015, 2016
For Brazil it is important to realize a high local production share because of high import tax rates. The rim drive concept offers an alternative for expensive heliostat drive solutions with slew and linear drives from abroad. By (locally produced) rims the demands on the drives regarding strength and precision are reduced to a very low value and low ...
Pfahl, Andreas +7 more
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For Brazil it is important to realize a high local production share because of high import tax rates. The rim drive concept offers an alternative for expensive heliostat drive solutions with slew and linear drives from abroad. By (locally produced) rims the demands on the drives regarding strength and precision are reduced to a very low value and low ...
Pfahl, Andreas +7 more
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Design of a wireless heliostat system
AFRICON 2015, 2015With the world progressively heading towards an energy crisis, renewable energy sources and technologies have become the focus of research. Harvesting the sun's energy through solar thermal power plants (STPPs) is an attractive alternative to the use of energy supplied through the grid. However, installation and maintenance of cabling for communication
Katlego Mabusela +3 more
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Heliostat Tilt and Azimuth Angle Charts and the Heliostat Orientation Protractor
Journal of Solar Energy Engineering, 1992This paper reports that using cartesian heliostat field coordinates analytical expressions were derived for the heliostat tilt angle s, and heliostat azimuth angle {gamma} (clockwise from south). These expressions are dependent on the field cartesian coordinates of the center of the heliostat and the solar zenith and azimuth angles (clockwise from ...
M. M. Elsayed, O. M. Al-Rabghi
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Heliostat design for the daylighting system
Applied Optics, 2014The daylighting system is designed to guide sunlight into buildings for illumination. It has the best illumination performance when sunlight vertically impinges on the collector of the daylighting system, while it has low performance when sunlight impinges obliquely.
Chih-Hung, Chang +9 more
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Solarization of heliostat glasses
1979We have observed a solar-induced decrease in Fe/sup 2 +/ absorption in heliostat glasses from the solar furnace at Odeillo, France. This decrease occurs throughout the sampled (not just at the exposed surface) and is of sufficient magnitude to result in an increase of 2.5% in solar transmittance in a period of nine years.
J Vitko, J Shelby
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Heliostat Field Design Using Visualization Method for Optical Heliostat Interaction
ASME 2011 5th International Conference on Energy Sustainability, Parts A, B, and C, 2011For the heliostat field design, the optical interaction of heliostat by shadowing and blocking should be considered besides cosine efficiency. In the present study, in order to visualize the optical interaction it is enabled to visualize the power loss image due to a poor heliostat layout.
Kei Ouchi +2 more
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1986
This paper describes the evolution of the SSPS heliostat field subsystem during three years of operation. The status of the field is given by a set of performance characteristics which include reflectivity, mirror corrosion, beam alignment, and availability.
Pierre Wattiez, Juan Ramos
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This paper describes the evolution of the SSPS heliostat field subsystem during three years of operation. The status of the field is given by a set of performance characteristics which include reflectivity, mirror corrosion, beam alignment, and availability.
Pierre Wattiez, Juan Ramos
openaire +1 more source