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Estimating Atmospheric Attenuation in Central Receiver Systems
ASME 2012 6th International Conference on Energy Sustainability, Parts A and B, 2012Atmospheric attenuation loss between a heliostat field and receiver has been recognized as a significant source of loss in Central Receiver System. Methods that can improve estimation of attenuation loss using available measurements will be useful in reducing uncertainty in estimation of CSP plant production, particularly in locations and climates that
Manajit Sengupta, Michael Wagner
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Central serous chorioretinopathy in patients receiving systemic corticosteroid therapy
Canadian Journal of Ophthalmology, 2005Central serous chorioretinopathy (CSCR) is characterized by a serous detachment of the neurosensory retina or the retinal pigment epithelium (RPE), or both, at the posterior pole. The etiology and pathogenesis of this disorder are still unknown. Several hypotheses have been proposed, including increased permeability of the choriocapillaris, defects in ...
Jaime, Levy +4 more
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Control of Central Receiver Systems
2012This chapter deals with modeling and control problems associated to thermosolar plants with central receiver system. All the components of a typical installation are explained, including the collector subsystem, the receiver, storage and control system. The chapter next describes simulation models for the main subsystem. The heliostat offset correction
Eduardo F. Camacho +3 more
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Comparative Performance Assessment For Central Receiver CPV Systems
AIP Conference Proceedings, 2011A Central receiver Concentrating PV (C2PV) system has the potential to be the optimum solar energy generation system for utility scale because it combines the high efficiency of CPV with the low cost of a heliostat collector. Due to the off axis nature of a heliostat central receiver concentrator a cosine efficiency loss is incurred and, unlike ‘normal’
John B. Lasich +9 more
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An Update on Solar Central Receiver Systems, Projects, and Technologies
Journal of Solar Energy Engineering, 2002Central Receiver Systems that use large heliostat fields and solar receivers located on top of a tower are now in the position to deploy the first generation of grid-connected commercial plants. The technical feasibility of the CRS power plants technology can be valued as sufficiently mature after the pioneering experience at the early 1980s of several
Romero, M., Buck, R., Pacheco, J.E.
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Simulation of Utility-Scale Central Receiver System Power Plants
ASME 2009 3rd International Conference on Energy Sustainability, Volume 2, 2009The operation of solar energy systems is necessarily transient. Over the lifetime of a concentrating solar power plant, the system operates at design conditions only occasionally, with the bulk of operation occurring under part-load conditions depending on solar resource availability.
Michael J. Wagner +2 more
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1987
As may be seen from the schematic in Fig. 8, the CRS plant consists of a field of 93 heliostats which reflect the sun onto a heat capturing device called a “receiver”. The heliostats track the sun during the day keeping its image reflected onto the receiver aperture.
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As may be seen from the schematic in Fig. 8, the CRS plant consists of a field of 93 heliostats which reflect the sun onto a heat capturing device called a “receiver”. The heliostats track the sun during the day keeping its image reflected onto the receiver aperture.
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Optimized secondary concentrators for a partitioned central receiver system
Solar Energy, 2000We present secondary concentrators with non-regular shapes for increasing the concentration of radiation from a given field of heliostats, well suited for partitioning the receiver into several units, arranged side by side. For a general heliostat field with a non-axisymmetric directional distribution of the radiation at the entrance aperture of the ...
A. Timinger +3 more
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Theoretical concentration of solar radiation by central receiver systems
Solar Energy, 1983Abstract Solar concentrations by central receiver systems have been calculated theoretically for various values of obliquity of the incident radiation, assuming that plane heliostat-mirrors, sufficiently small in dimension, cover a circular field without clearance.
Takemaro Sakurai, Yukio Shibata
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Solar central receiver power plant control system concept
1988This report describes the results of a study to determine control system design features and to propose innovative conceptual approaches necessary to increase the productivity of operation and maintenance personnel required to operate a solar thermal central receiver power plant. This study utilized experience gained at the 10 MWe Solar Thermal Central
A Mathur, C Koch
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