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Title: Effects of Photovoltaic Module Materials and Design on Module Deformation Under Load

Abstract

Static structural finite element models of an aluminum-framed crystalline silicon (c-Si) photovoltaic (PV) module and a glass-glass thin film PV module were constructed and validated against experimental measurements of deflection under uniform pressure loading. Parametric analyses using Latin Hypercube Sampling (LHS) were performed to propagate simulation input uncertainties related to module material properties, dimensions, and manufacturing tolerances into expected uncertainties in simulated deflection predictions. This exercise verifies the applicability and validity of finite element modeling for predicting mechanical behavior of solar modules across architectures and enables computational models to be used with greater confidence in assessment of module mechanical stressors and design for reliability. Sensitivity analyses were also performed on the uncertainty quantification data sets using linear correlation coefficients to elucidate the key parameters influencing module deformation. This information has implications on which materials or parameters may be optimized to best increase module stiffness and reliability, whether the key optimization parameters change with module architecture or loading magnitudes, and whether parameters such as frame design and racking must be replicated in reduced-scale reliability studies to adequately capture full module mechanical behavior.

Authors:
 [1];  [1];  [2];  [3];  [3];  [3];  [4];  [1]
  1. Sandia National Laboratories
  2. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
  3. First Solar Inc.
  4. University of New Mexico
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:
1603917
Report Number(s):
NREL/CP-5K00-76292
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 16-21 June 2019, Chicago, Illinois
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; finite element modeling; mechanical load; simulation; uncertainty quantification; validation

Citation Formats

Hartley, James Y., Maes, Ashley, Owen-Bellini, Michael, Truman, Thomas, Elce, Edmund, Ward, Allan, Khraishi, Tariq, and Roberts, Scott. Effects of Photovoltaic Module Materials and Design on Module Deformation Under Load. United States: N. p., 2020. Web. doi:10.1109/PVSC40753.2019.8980842.
Hartley, James Y., Maes, Ashley, Owen-Bellini, Michael, Truman, Thomas, Elce, Edmund, Ward, Allan, Khraishi, Tariq, & Roberts, Scott. Effects of Photovoltaic Module Materials and Design on Module Deformation Under Load. United States. https://doi.org/10.1109/PVSC40753.2019.8980842
Hartley, James Y., Maes, Ashley, Owen-Bellini, Michael, Truman, Thomas, Elce, Edmund, Ward, Allan, Khraishi, Tariq, and Roberts, Scott. Thu . "Effects of Photovoltaic Module Materials and Design on Module Deformation Under Load". United States. https://doi.org/10.1109/PVSC40753.2019.8980842.
@article{osti_1603917,
title = {Effects of Photovoltaic Module Materials and Design on Module Deformation Under Load},
author = {Hartley, James Y. and Maes, Ashley and Owen-Bellini, Michael and Truman, Thomas and Elce, Edmund and Ward, Allan and Khraishi, Tariq and Roberts, Scott},
abstractNote = {Static structural finite element models of an aluminum-framed crystalline silicon (c-Si) photovoltaic (PV) module and a glass-glass thin film PV module were constructed and validated against experimental measurements of deflection under uniform pressure loading. Parametric analyses using Latin Hypercube Sampling (LHS) were performed to propagate simulation input uncertainties related to module material properties, dimensions, and manufacturing tolerances into expected uncertainties in simulated deflection predictions. This exercise verifies the applicability and validity of finite element modeling for predicting mechanical behavior of solar modules across architectures and enables computational models to be used with greater confidence in assessment of module mechanical stressors and design for reliability. Sensitivity analyses were also performed on the uncertainty quantification data sets using linear correlation coefficients to elucidate the key parameters influencing module deformation. This information has implications on which materials or parameters may be optimized to best increase module stiffness and reliability, whether the key optimization parameters change with module architecture or loading magnitudes, and whether parameters such as frame design and racking must be replicated in reduced-scale reliability studies to adequately capture full module mechanical behavior.},
doi = {10.1109/PVSC40753.2019.8980842},
url = {https://www.osti.gov/biblio/1603917}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {2}
}

Conference:
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