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Title: Comparison of Optical Modelling Tools for Sunshape and Surface Slope Error

Abstract

The sunshape and mirror surface slope error are two main factors that influence the characteristics of incoming and reflected solar beams in a solar concentrator. Different optical modelling tools, however, address these two factors with different methods and simplifications. In this study, simulation methods are reviewed in five optical modelling tools, namely SolTrace, Tonatiuh, Tracer, Heliosim and SolarPILOT. A series of simple test cases are simulated in each tool to compare and verify the implementation of sunshape and slope error models separately. This strategy has successfully identified discrepancies among the tools and contributed to a better understanding of their reasons. It has also uncovered few glitches in some of those tools and contributed to improve them. It is our hope that this study will help to resolve common misconceptions, to build confidence amongst CSP researches on the accuracy of tools with which they have less experience, and to ensure better agreement in optical modelling work in future.

Authors:
 [1];  [2];  [1];  [2];  [3];  [4];  [2];  [1]
  1. Australian National University
  2. CSIRO Energy
  3. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
  4. The Cyprus Institute
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1487319
Report Number(s):
NREL/CP-5500-72968
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at SolarPACES 2017: International Conference on Concentrating Solar Power and Chemical Energy Systems, 26-29 September 2017, Santiago, Chile
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 47 OTHER INSTRUMENTATION; concentrating solar power; optical modelling; sunshape; mirror surface slope error

Citation Formats

Wang, Ye, Potter, Daniel, Asselineau, Charles-Alexis, Corsi, Clotilde, Wagner, Michael J, Blanco, Manuel, Kim, Jin-Soo, and Pye, John. Comparison of Optical Modelling Tools for Sunshape and Surface Slope Error. United States: N. p., 2018. Web. doi:10.1063/1.5067222.
Wang, Ye, Potter, Daniel, Asselineau, Charles-Alexis, Corsi, Clotilde, Wagner, Michael J, Blanco, Manuel, Kim, Jin-Soo, & Pye, John. Comparison of Optical Modelling Tools for Sunshape and Surface Slope Error. United States. doi:10.1063/1.5067222.
Wang, Ye, Potter, Daniel, Asselineau, Charles-Alexis, Corsi, Clotilde, Wagner, Michael J, Blanco, Manuel, Kim, Jin-Soo, and Pye, John. Thu . "Comparison of Optical Modelling Tools for Sunshape and Surface Slope Error". United States. doi:10.1063/1.5067222.
@article{osti_1487319,
title = {Comparison of Optical Modelling Tools for Sunshape and Surface Slope Error},
author = {Wang, Ye and Potter, Daniel and Asselineau, Charles-Alexis and Corsi, Clotilde and Wagner, Michael J and Blanco, Manuel and Kim, Jin-Soo and Pye, John},
abstractNote = {The sunshape and mirror surface slope error are two main factors that influence the characteristics of incoming and reflected solar beams in a solar concentrator. Different optical modelling tools, however, address these two factors with different methods and simplifications. In this study, simulation methods are reviewed in five optical modelling tools, namely SolTrace, Tonatiuh, Tracer, Heliosim and SolarPILOT. A series of simple test cases are simulated in each tool to compare and verify the implementation of sunshape and slope error models separately. This strategy has successfully identified discrepancies among the tools and contributed to a better understanding of their reasons. It has also uncovered few glitches in some of those tools and contributed to improve them. It is our hope that this study will help to resolve common misconceptions, to build confidence amongst CSP researches on the accuracy of tools with which they have less experience, and to ensure better agreement in optical modelling work in future.},
doi = {10.1063/1.5067222},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {11}
}

Conference:
Other availability
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