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dc.contributor.author
Heim, Dariusz
dc.contributor.author
Krempski Smejda, Michael
dc.contributor.author
Dellicompagni, Pablo Roberto
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dc.contributor.author
Knera, Dominika
dc.contributor.author
Wieprzkowicz, Anna
dc.contributor.author
Franco, Ada Judith
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dc.date.available
2022-09-30T14:44:34Z
dc.date.issued
2021-01-30
dc.identifier.citation
Heim, Dariusz; Krempski Smejda, Michael; Dellicompagni, Pablo Roberto; Knera, Dominika; Wieprzkowicz, Anna; et al.; Dynamics of melting process in phase change material windows determined based on direct light transmission; MDPI AG; Energies; 14; 3; 30-1-2021; 1-13
dc.identifier.issn
1996-1073
dc.identifier.uri
http://hdl.handle.net/11336/171224
dc.description.abstract
Detailed analyses of melting processes in phase change material (PCM) glazing units, changes of direct transmittance as well as investigation of refraction index were provided based on laboratory measurements. The main goal of the study was to determine the direct light transmittance versus time under constant solar radiation intensity and stable temperature of the surrounding air. The experiment was conducted on a triple glazed unit with one cavity filled with a paraffin RT21HC as a PCM. The unit was installed in a special holder and exposed to the radiation from an artificial sun. The vertical illuminance was measured by luxmeters and compared with a reference case to determine the direct light transmittance. The transmittance was determined for the whole period of measurements when some specific artefacts were identified and theoretically explained based on values of refractive indexes for paraffins in the solid and liquid state, and for a glass. The melting process of a PCM in a glass unit was identified as a complex one, with interreflections and refraction of light on semi layers characterized by a different physical states (solid, liquid or mushy). These optical phenomena caused nonuniformity in light transmittance, especially when the PCM is in a mushy state. It was revealed that light transmittance versus temperature cannot be treated as a linear function.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
MDPI AG
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
ENERGY STORAGE
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OPTICAL PROPERTIES
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REFRACTIVE INDEX
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SOLAR RADIATION
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TRIPLE GLAZING
dc.subject.classification
Otras Ciencias Físicas
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Dynamics of melting process in phase change material windows determined based on direct light transmission
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-21T23:34:51Z
dc.journal.volume
14
dc.journal.number
3
dc.journal.pagination
1-13
dc.journal.pais
Suiza
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dc.journal.ciudad
Basel
dc.description.fil
Fil: Heim, Dariusz. Lodz University of Technology; Polonia
dc.description.fil
Fil: Krempski Smejda, Michael. Lodz University of Technology; Polonia
dc.description.fil
Fil: Dellicompagni, Pablo Roberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones en Energía no Convencional. Universidad Nacional de Salta. Facultad de Ciencias Exactas. Departamento de Física. Instituto de Investigaciones en Energía no Convencional; Argentina
dc.description.fil
Fil: Knera, Dominika. Lodz University of Technology; Polonia
dc.description.fil
Fil: Wieprzkowicz, Anna. Lodz University of Technology; Polonia
dc.description.fil
Fil: Franco, Ada Judith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Investigaciones en Energía no Convencional. Universidad Nacional de Salta. Facultad de Ciencias Exactas. Departamento de Física. Instituto de Investigaciones en Energía no Convencional; Argentina
dc.journal.title
Energies
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/1996-1073/14/3/721
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.3390/en14030721
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