Thermo-mechanical deformation degradation of crystalline silicon photovoltaic (c-Si PV) module in operation

Hdl Handle:
http://hdl.handle.net/10149/621561
Title:
Thermo-mechanical deformation degradation of crystalline silicon photovoltaic (c-Si PV) module in operation
Authors:
Amalu, E. H. (Emeka); Hughes, D. J. (David); Nabhani, F. (Farhad); Winter, J. (Julie)
Affiliation:
Teesside University. Social Futures Institute
Citation:
Amalu, E.H., Hughes, D.J., Nabhani, F., Winter, J. (2018) ‘Thermo-mechanical deformation degradation of crystalline silicon photovoltaic (c-Si PV) module in operation’ Engineering Failure Analysis; 84: 229-246
Publisher:
Elsevier
Journal:
Engineering Failure Analysis
Issue Date:
28-Nov-2017
URI:
http://hdl.handle.net/10149/621561
Additional Links:
https://doi.org/10.1016/j.engfailanal.2017.11.009
Abstract:
Reliability and mean-time-to-failure (MTTF) of crystalline silicon photovoltaic (c-Si PV) module operating at elevated temperature can be increased through in-depth understanding of the mechanics of thermo-mechanical deformation and degradation of the laminates bonded together in the system. The knowledge is critical to developing the next generation of robust c-Si PV modules. Deployment in elevated ambient temperature reduces the 25-year design life by inducing excessive deformation that results in significant laminate degradation. The research investigates the thermo-mechanical deformation of c-Si PV module. Analytical and simulation methods are employed in the investigation. The IEC 61215 test qualification is used. Ethylene vinyl acetate (EVA) and solder materials responses are modelled as temperature dependent with appropriate material models. Analytical technique for validating simulation results of the response of c-Si PV module to temperature load is presented. The laminate’s stiffness is found to be governed by the stiffness ratio magnitude of silicon which is the most stressed component. The deformation ratio of EVA is highest and significantly determines the degree of variation of gap between solar cells. The EVA exhibits the highest susceptibility to thermo-mechanical deformation followed by the solder which is found to accumulate the highest magnitude of strain energy density. The research presents an analytical method that can be used to validate the output of computer-simulation of the magnitude of strain energy density of solder in c-Si PV modules.
Type:
Article
Language:
en
Keywords:
Crystalline silicon photovoltaic (c-Si PV) module; Deformation mechanics; Solder strain energy density; Finite element modelling (FEM); Analytical models; Ambient temperature
ISSN:
1350-6307
Rights:
Author can archive post-print (ie final draft post-refereeing) For full details see http://www.sherpa.ac.uk/romeo/issn/1350-6307/ [Accessed 10/01/2018]

Full metadata record

DC FieldValue Language
dc.contributor.authorAmalu, E. H. (Emeka)en
dc.contributor.authorHughes, D. J. (David)en
dc.contributor.authorNabhani, F. (Farhad)en
dc.contributor.authorWinter, J. (Julie)en
dc.date.accessioned2018-01-10T15:12:32Z-
dc.date.available2018-01-10T15:12:32Z-
dc.date.issued2017-11-28-
dc.identifier.citationEngineering Failure Analysis; 84: 229-246en
dc.identifier.issn1350-6307-
dc.identifier.urihttp://hdl.handle.net/10149/621561-
dc.description.abstractReliability and mean-time-to-failure (MTTF) of crystalline silicon photovoltaic (c-Si PV) module operating at elevated temperature can be increased through in-depth understanding of the mechanics of thermo-mechanical deformation and degradation of the laminates bonded together in the system. The knowledge is critical to developing the next generation of robust c-Si PV modules. Deployment in elevated ambient temperature reduces the 25-year design life by inducing excessive deformation that results in significant laminate degradation. The research investigates the thermo-mechanical deformation of c-Si PV module. Analytical and simulation methods are employed in the investigation. The IEC 61215 test qualification is used. Ethylene vinyl acetate (EVA) and solder materials responses are modelled as temperature dependent with appropriate material models. Analytical technique for validating simulation results of the response of c-Si PV module to temperature load is presented. The laminate’s stiffness is found to be governed by the stiffness ratio magnitude of silicon which is the most stressed component. The deformation ratio of EVA is highest and significantly determines the degree of variation of gap between solar cells. The EVA exhibits the highest susceptibility to thermo-mechanical deformation followed by the solder which is found to accumulate the highest magnitude of strain energy density. The research presents an analytical method that can be used to validate the output of computer-simulation of the magnitude of strain energy density of solder in c-Si PV modules.en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urlhttps://doi.org/10.1016/j.engfailanal.2017.11.009en
dc.rightsAuthor can archive post-print (ie final draft post-refereeing) For full details see http://www.sherpa.ac.uk/romeo/issn/1350-6307/ [Accessed 10/01/2018]en
dc.subjectCrystalline silicon photovoltaic (c-Si PV) moduleen
dc.subjectDeformation mechanicsen
dc.subjectSolder strain energy densityen
dc.subjectFinite element modelling (FEM)en
dc.subjectAnalytical modelsen
dc.subjectAmbient temperatureen
dc.titleThermo-mechanical deformation degradation of crystalline silicon photovoltaic (c-Si PV) module in operationen
dc.typeArticleen
dc.contributor.departmentTeesside University. Social Futures Instituteen
dc.identifier.journalEngineering Failure Analysisen
or.citation.harvardAmalu, E.H., Hughes, D.J., Nabhani, F., Winter, J. (2018) ‘Thermo-mechanical deformation degradation of crystalline silicon photovoltaic (c-Si PV) module in operation’ Engineering Failure Analysis; 84: 229-246en
dc.eprint.versionPost-printen
dc.embargo12 monthsen
dc.date.accepted2017-11-24-
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