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A New Fast Ray Tracing Tool for High-Precision Simulation of Heliostat Fields

Belhomme, Boris and Pitz-Paal, Robert and Schwarzbözl, Peter and Ulmer, Steffen (2009) A New Fast Ray Tracing Tool for High-Precision Simulation of Heliostat Fields. Journal of Solar Energy Engineering, Volume (Issue ). DOI: 10.1115/1.3139139.

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A completely new ray tracing software has been developed at the German Aerospace Center. The main purpose of this software is the flux density simulation of heliostat fields with a very high accuracy in a small amount of computation time. The software is primarily designed to process real sun shape distributions and real highly resolved heliostat geometry data, which means a data set of normal vectors of the entire reflecting surface of each heliostat in the field. Specific receiver and secondary concentrator models, as well as models of objects that are shadowing the heliostat field, can be implemented by the user and be linked to the simulation software subsequently. The specific architecture of the software enables the provision of other powerful simulation environments with precise flux density simulation data for the purpose of entire plant simulations. The software was validated through a severe comparison with measured flux density distributions. The simulation results show very good accordance with the measured results.

Document Type:Article
Title:A New Fast Ray Tracing Tool for High-Precision Simulation of Heliostat Fields
AuthorsInstitution or Email of Authors
Belhomme, BorisUNSPECIFIED
Pitz-Paal, RobertUNSPECIFIED
Schwarzbözl, PeterUNSPECIFIED
Date:August 2009
Journal or Publication Title:Journal of Solar Energy Engineering
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Keywords:Ray Tracing, Solar Tower, Heliostats, Deflectometry, Validation, Simulation, STRAL
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:E SF - Solar research (old)
DLR - Research area:Energy
DLR - Program:E SF - Solar research
DLR - Research theme (Project):E - Applikationsentwicklung (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Technical Thermodynamics > Solar Research
Deposited By: Dr.-Ing. Steffen Ulmer
Deposited On:19 Feb 2010 16:27
Last Modified:12 Dec 2013 20:53

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