Results 61 to 70 of about 2,012 (205)
Sun tracking by heliostats with arbitrary orientation of primary and secondary axes
Solar Energy, 2020 Abstract The tracking of heliostats with arbitrary orientation of the primary and secondary axes is considered, and the explicit formulas are derived to find the tracking angles for a given position of the sun. It is shown that the inverse kinematics problem leads to a quadratic equation and has two solutions in general case.
Grigoriev, Victor +2 more
openaire +1 more source
A Dormant Giant: Renewable Energy in the Soviet Union and Russia (1970s–Present)
The Russian Review, Volume 84, Issue 2, Page 267-282, April 2025.Abstract In spring 1981 the Central Committee of the Soviet Communist Party officially sanctioned the start of an “alternative” renewable energy development program in the Soviet Union. Throughout the following decade, some two hundred organizations in the USSR were involved in research and development activities and installing test facilities for ...
Benjamin Beuerle
wiley +1 more source
Direct sunlight facility for testing and research in HCPV [PDF]
, 2014 A facility for testing different components for HCPV application has been developed in the framework of “Fotovoltaico ad Alta Efficienza” (FAE) project funded by the Sicilian Regional Authority (PO FESR Sicilia 2007/2013 4.1.1.1).
AGNELLO, Simonpietro +15 more
core +2 more sources
International Journal of Energy Research, Volume 2025, Issue 1, 2025.The present paper deals on a concentrating solar system with thermal energy storage, recognized as a potentially useful technology to be integrated in power systems and industries, to support their decarbonization. The paper focuses on the control system of the solar field, employing two‐axis (pitch‐roll) tracking mirrors (heliostats) and a beam‐down ...
Antonio Scafuri +7 more
wiley +1 more source
Applied SciencesIn this work, solar concentrating heliostat fields are modeled using accurate solar-tracking algorithms and a wide range of rotation models to investigate the parameters controlling the mechanical efficiency of these solar facilities.
José Carlos Garcia Pereira +1 more
doaj +1 more source
Status and Current Sensitivity of the CELESTE Experiment [PDF]
, 2000 The CELESTE experiment uses the heliostats of an old solar farm in the French Pyrenees to detect gamma ray air showers by the atmospheric Cerenkov technique. CELESTE has been operating since November 1999 with an array of 40 heliostats fully instrumented
collaboration, CELESTE, de Naurois, M.
core +2 more sources
IET Renewable Power Generation, Volume 18, Issue S1, Page 4497-4518, 18 December 2024.• Air‐cooled solar recompression supercritical CO2 systems are investigated. • Advanced exergy analysis is performed to identify optimization strategies. • Improvement focuses on PC and MC; two enhancement systems are proposed. • The optimal configuration includes an intercooler and a second compressor.
Amin Atarzadeh +2 more
wiley +1 more source
Autonomous light-weight heliostat with rim drives [PDF]
, 2013 Several approaches for cost reduction of heliostats, which fit well to each other, are combined to a new heliostat concept to achieve the current challenging cost objectives: The wind loads are reduced by appropriate manipulators which reduces weight and
Holze, Carsten +3 more
core +1 more source
Advanced Materials, Volume 36, Issue 42, October 17, 2024.Photocatalytic solar hydrogen generation, including both overall water splitting and organic reforming, presents a promising route for green hydrogen production. To advance the commercialization of this technology, this review offers an integrated, multidisciplinary perspective on photocatalyst and system designs aimed at enhancing solar‐to‐hydrogen ...
Denny Gunawan +7 more
wiley +1 more source
SolarPACES Conference ProceedingsThe camera target method is the most commonly used calibration method for heliostats at solar tower power plants to minimize their sun tracking errors.
Max Pargmann +4 more
doaj +1 more source