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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, 131 (3). American Society of Mechanical Engineers. ISSN 0199-6231.

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Official URL: http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JSEEDO000131000003031002000001&idtype=cvips&gifs=Yes

Abstract

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
Authors:
AuthorsInstitution or Email of Authors
Belhomme, Borisboris.belhomme@dlr.de
Pitz-Paal, Robertrobert.pitz-paal@dlr.de
Schwarzbözl, Peterpeter.schwarzboezl@dlr.de
Ulmer, Steffensteffen.ulmer@dlr.de
Date:August 2009
Journal or Publication Title:Journal of Solar Energy Engineering
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:131
Editors:
EditorsEmail
Steinfeld, AldoUNSPECIFIED
Publisher:American Society of Mechanical Engineers
Series Name:Transactions of the ASME
ISSN:0199-6231
Status:Published
Keywords:optical computing, ray tracing, solar energy concentrators
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 - Solare Hochtemperatursysteme (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Technical Thermodynamics > Solar Research
Deposited By: Boris Belhomme
Deposited On:09 Feb 2010 16:48
Last Modified:07 Feb 2013 20:34

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