Thermal Analysis of Organic and Nanoencapsulated Electrospun Phase Change Materials
Latent heat stored in phase change materials (PCM) can greatly improve energy efficiency in indoor heating/cooling applications. This study presents the materials and methods for the formation and characterization of a PCM layer for a latent heat thermal energy storage (LHTES) application. Four comm...
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2021-02-01
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author | Evdoxia Paroutoglou Peter Fojan Leonid Gurevich Göran Hultmark Alireza Afshari |
author_facet | Evdoxia Paroutoglou Peter Fojan Leonid Gurevich Göran Hultmark Alireza Afshari |
author_sort | Evdoxia Paroutoglou |
collection | DOAJ |
description | Latent heat stored in phase change materials (PCM) can greatly improve energy efficiency in indoor heating/cooling applications. This study presents the materials and methods for the formation and characterization of a PCM layer for a latent heat thermal energy storage (LHTES) application. Four commercially available PCMs comprising the classes of organic paraffins and organic non-paraffins were selected for thermal storage application. Pure organic PCM and PCM in water emulsions were experimentally investigated. PCM electrospun microfibers were produced by a co-axial electrospinning technique, where solutions of Polycaprolactone (PCL) 9% <i>w</i>/<i>v</i> and 12% <i>w</i>/<i>v</i> in dichloromethane (DCM) were used as the fiber shell materials. PCM emulsified with sodium dodecyl sulfate (SDS), and Polyvinylalcohol 10% <i>w</i>/<i>v</i> (PVA) constituted the core of the fibers. The thermal behavior of the PCM, PCM emulsions, and PCM electrospun fibers were analyzed with differential scanning calorimetry (DSC). A commercial organic paraffin with a phase change temperature of 18 °C (RT 18) in its pure and emulsified forms was found to be a suitable PCM candidate for LHTES. The PVA-PCM electrospun fiber matrix of the organic paraffin RT18 with a PCL concentration of 12% <i>w</i>/<i>v</i> showed the most promising results leading to an encapsulation efficiency of 67%. |
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id | doaj.art-20a1a8ea7b6840fe958051cad1f0aafe |
institution | Directory Open Access Journal |
issn | 1996-1073 |
language | English |
last_indexed | 2024-03-09T00:53:16Z |
publishDate | 2021-02-01 |
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series | Energies |
spelling | doaj.art-20a1a8ea7b6840fe958051cad1f0aafe2023-12-11T17:03:20ZengMDPI AGEnergies1996-10732021-02-0114499510.3390/en14040995Thermal Analysis of Organic and Nanoencapsulated Electrospun Phase Change MaterialsEvdoxia Paroutoglou0Peter Fojan1Leonid Gurevich2Göran Hultmark3Alireza Afshari4Department of the Built Environment, Division of Sustainability, Energy and Indoor Environment, Aalborg University, 2450 København SV, DenmarkDepartment of Materials and Production, Aalborg University, 9220 Aalborg Ø, DenmarkDepartment of Materials and Production, Aalborg University, 9220 Aalborg Ø, DenmarkDepartment of the Built Environment, Division of Sustainability, Energy and Indoor Environment, Aalborg University, 2450 København SV, DenmarkDepartment of the Built Environment, Division of Sustainability, Energy and Indoor Environment, Aalborg University, 2450 København SV, DenmarkLatent heat stored in phase change materials (PCM) can greatly improve energy efficiency in indoor heating/cooling applications. This study presents the materials and methods for the formation and characterization of a PCM layer for a latent heat thermal energy storage (LHTES) application. Four commercially available PCMs comprising the classes of organic paraffins and organic non-paraffins were selected for thermal storage application. Pure organic PCM and PCM in water emulsions were experimentally investigated. PCM electrospun microfibers were produced by a co-axial electrospinning technique, where solutions of Polycaprolactone (PCL) 9% <i>w</i>/<i>v</i> and 12% <i>w</i>/<i>v</i> in dichloromethane (DCM) were used as the fiber shell materials. PCM emulsified with sodium dodecyl sulfate (SDS), and Polyvinylalcohol 10% <i>w</i>/<i>v</i> (PVA) constituted the core of the fibers. The thermal behavior of the PCM, PCM emulsions, and PCM electrospun fibers were analyzed with differential scanning calorimetry (DSC). A commercial organic paraffin with a phase change temperature of 18 °C (RT 18) in its pure and emulsified forms was found to be a suitable PCM candidate for LHTES. The PVA-PCM electrospun fiber matrix of the organic paraffin RT18 with a PCL concentration of 12% <i>w</i>/<i>v</i> showed the most promising results leading to an encapsulation efficiency of 67%.https://www.mdpi.com/1996-1073/14/4/995LHTESPCMelectrospun fiber matrixDSC |
spellingShingle | Evdoxia Paroutoglou Peter Fojan Leonid Gurevich Göran Hultmark Alireza Afshari Thermal Analysis of Organic and Nanoencapsulated Electrospun Phase Change Materials Energies LHTES PCM electrospun fiber matrix DSC |
title | Thermal Analysis of Organic and Nanoencapsulated Electrospun Phase Change Materials |
title_full | Thermal Analysis of Organic and Nanoencapsulated Electrospun Phase Change Materials |
title_fullStr | Thermal Analysis of Organic and Nanoencapsulated Electrospun Phase Change Materials |
title_full_unstemmed | Thermal Analysis of Organic and Nanoencapsulated Electrospun Phase Change Materials |
title_short | Thermal Analysis of Organic and Nanoencapsulated Electrospun Phase Change Materials |
title_sort | thermal analysis of organic and nanoencapsulated electrospun phase change materials |
topic | LHTES PCM electrospun fiber matrix DSC |
url | https://www.mdpi.com/1996-1073/14/4/995 |
work_keys_str_mv | AT evdoxiaparoutoglou thermalanalysisoforganicandnanoencapsulatedelectrospunphasechangematerials AT peterfojan thermalanalysisoforganicandnanoencapsulatedelectrospunphasechangematerials AT leonidgurevich thermalanalysisoforganicandnanoencapsulatedelectrospunphasechangematerials AT goranhultmark thermalanalysisoforganicandnanoencapsulatedelectrospunphasechangematerials AT alirezaafshari thermalanalysisoforganicandnanoencapsulatedelectrospunphasechangematerials |