Results 121 to 130 of about 7,286,792 (156)

High performance computing for the heliostat field layout evaluation

, 2017
Cruz, Nicolas, Redondo, Juana, Berenguel Soria, Manuel, Ortigosa, Pilar, Berrera-Teron, A   +4 more
openaire   +1 more source

Heliostat Field Layout Improvement by Nonrestricted Refinement

Journal of Solar Energy Engineering, 2013
A new method for the heliostat field optimization is presented. The method is intended for further performance improvement after initial layout with a standard heliostat field layout tool. During the field refinement, the heliostats are repositioned around their original position, without or with little restrictions.
Buck, Reiner
openaire   +2 more sources

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Mathematical formulation of a graphical method for a no-blocking heliostat field layout

Renewable Energy, 2001
The graphical method for a no-blocking radial staggered layout was introduced within the joint work between the Center For Solar Energy Studies (CSES), Tripoli, and Atlantis Energy Ltd, Bern. It locates the heliostats in the field of a solar central receiver plant so that they provide no blocking losses over the year.
F.M.F Siala, M.E Elayeb
exaly   +2 more sources

Heliostat field optimization: A new computationally efficient model and biomimetic layout

Solar Energy, 2012
Abstract In this article, a new model and a biomimetic pattern for heliostat field layout optimization are introduced. The model, described and validated herein, includes a detailed calculation of the annual average optical efficiency accounting for cosine losses, shading and blocking, aberration and atmospheric attenuation.
Manuel Torrilhon, Alexander Mítsos
exaly   +2 more sources

Optimization of a heliostat field layout using hybrid PSO-GA algorithm

Applied Thermal Engineering, 2018
Abstract A mathematical model of the heliostat field and the PSO-GA algorithm are developed in Matlab to optimize a heliostat field and determine the highest potential daily energy collection (DEC). The heliostat field in Lhasa, China is analyzed as an example.
Rongrong Zhai, Chao Li
exaly   +2 more sources

Pattern-free heliostat field layout optimization using physics-based gradient

Solar Energy, 2020
Abstract In this paper, the alternating direction method is proposed to perform heliostat field layout optimization, which includes two new strategies: (1) pattern-free layout optimization using the proposed physics-based gradient of optical efficiencies, and (2) new initial designs obtained by changing a scaling factor (k).
Ikjin Lee
exaly   +2 more sources

A new method for the design of the heliostat field layout for solar tower power plant

Renewable Energy, 2010
A new method for the design of the heliostat field layout for solar tower power plant is proposed. In the new method, the heliostat boundary is constrained by the receiver geometrical aperture and the efficiency factor which is the product of the annual cosine efficiency and the annual atmospheric transmission efficiency of heliostat.
Zhifeng Wang, Weixing Yu, Zhenwu Lu
exaly   +2 more sources

A new code for the design and analysis of the heliostat field layout for power tower system

Solar Energy, 2010
A new code for the design and analysis of the heliostat field layout for power tower system is developed. In the new code, a new method for the heliostat field layout is proposed based on the edge ray principle of nonimaging optics. The heliostat field boundary is constrained by the tower height, the receiver tilt angle and size and the heliostat ...
Zhifeng Wang, Weixing Yu, Zhenwu Lu
exaly   +2 more sources

Heliostat field layout optimization for high-temperature solar thermochemical processing

Solar Energy, 2011
Abstract The layout of the heliostat field of solar tower systems is optimized for maximum annual solar-to-chemical energy conversion efficiency in high-temperature thermochemical processes for solar fuels production. The optimization algorithm is based on the performance function that includes heliostat characteristics, secondary optics, and ...
Aldo Steinfeld, Robert Pitz-Paal
exaly   +3 more sources

Design and analysis of a heliostat field layout with reduced shading effect in southern Tunisia

International Journal of Hydrogen Energy, 2017
Abstract This paper dealt with the design and the analysis of a preliminary heliostat field layout with reduced optical losses caused by the blocking and shading effects. The study dealt first with the assessment of the optical losses resulting from the heliostat tracking motion. The developed heliostat field configuration is simulated in a region of
Mahmoud Ben Amara, Fathia Eddhibi, Guizani Amenallah   +2 more
exaly   +2 more sources