Performance of inclined heliostat solar field with solar geometrical factors
01 Jul 2020-Energy Sources Part A-recovery Utilization and Environmental Effects (Informa UK Limited)-pp 1-23
TL;DR: The solar tower power plant (STPP) is one of the most renowned technologies for large-scale renewable electricity production The solar field of STPP is made up of several hundreds of mirrors.
Abstract: The solar tower power plant (STPP) is one of the most renowned technologies for large-scale renewable electricity production The solar field of STPP is made up of several hundreds of mirrors, know
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TL;DR: A new model and a biomimetic pattern for heliostat field layout optimization are introduced, inspired by the spirals of the phyllotaxis disc pattern, which generates layouts of both higher insolation-weighted efficiency and higher ground coverage than radially staggered designs.
257 citations
TL;DR: In this paper, a review of the optimized heliostat field layouts yielded by campo is presented, where the search for maximum annual energy through campo results in a clear, steady and reproducible procedure.
Abstract: Solar power tower (SPT) systems are viewed as one of the most promising technologies for producing solar electricity, in which direct solar radiation is reflected and concentrated by a field of giant mirrors (heliostats) onto a receiver placed at the top of a tower. However, the optimized design of a heliostat field is a rather complex problem because the annual performance of a heliostat is a function of not only the instants of time considered and its own position, but also the relative location of neighbouring heliostats, which cause shadows and blockings. A variety of procedures may be found in the open literature, although there is great lack of information on the details of an optimized layout. This review shows that these complex problems have partially led to the expansion of parabolic trough technologies in USA and Spain in spite of their lower thermodynamic efficiencies compared with solar tower power. As a modest support of SPT systems, the authors have presented elsewhere the abilities of a new code called campo for fast and accurate calculations of the shadowing and blocking factor for each and every heliostat. This work explores a review of the optimized heliostat field layouts yielded by campo. Campo commences the optimization search based on the densest layout, with the worst shadowing and blocking factor, but with good values for the other optical factors, and then progresses towards gradually expanded distributions. The search for maximum annual energy through campo results in a clear, steady and reproducible procedure. Finally, as an example of this new procedure, some options of optimized heliostat field layouts are reviewed using as input parameters the scarce open literature data on Gemasolar, the first solar power tower commercial plant with molten salt storage in the world.
176 citations
TL;DR: In this paper, a quasi-three-dimensional model using Lagrangian finite element method (LFEM) is formulated to reproduce the dynamic runout process caused by landslides.
153 citations
TL;DR: In this paper, a new method for the design of the heliostat field layout for solar tower power plant is proposed, which is based on the HFLD code.
136 citations