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Variation of Thermochromic Glazing Systems Transition Temperature, Hysteresis Gradient and Width Effect on Energy Efficiency

M. Warwick, I. Ridley, R. Binions, Michael Warwick Orcid Logo

Buildings, Volume: 6, Issue: 2, Start page: 22

Swansea University Author: Michael Warwick Orcid Logo

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DOI (Published version): 10.3390/buildings6020022

Abstract

Due to increasing pressure to reduce the energy demand in buildings, thermochromic thin film based glazing has become a recognized potential solution due to the intrinsic ability to modulate the solar heat gain of a window as a function of the materials temperature. These “intelligent” glazings have...

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Published in: Buildings
ISSN: 2075-5309
Published: MDPI AG 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa32760
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first_indexed 2017-03-29T13:47:17Z
last_indexed 2018-02-09T05:21:02Z
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spelling 2017-07-07T15:23:54.3525040 v2 32760 2017-03-29 Variation of Thermochromic Glazing Systems Transition Temperature, Hysteresis Gradient and Width Effect on Energy Efficiency 9fdabb7283ffccc5898cc543305475cf 0000-0002-9028-1250 Michael Warwick Michael Warwick true false 2017-03-29 FGSEN Due to increasing pressure to reduce the energy demand in buildings, thermochromic thin film based glazing has become a recognized potential solution due to the intrinsic ability to modulate the solar heat gain of a window as a function of the materials temperature. These “intelligent” glazings have been investigated for several years, and it has been found that, through variation of synthetic route, the thermochromic properties (transition temperature, hysteresis gradient and width) can be altered; however, less attention has been applied to how such alterations affect the overall energy savings attributed to the materials. In this study the building simulation software EnergyPlus TM has been used to model a series of idealized thermochromic spectra in a series of different environments to evaluate their energy saving potential against both clear glass systems and industry standards. The idealized spectra are used to see what effect each of the materials thermochromic properties and therefore elucidate which are the most important with respect to the energy saving properties. It was found that the best thermochromic materials were those with a narrow sharp hysteresis and a low transition temperature and result in an increase in energy saving between 30%–45% across the different environments compared to clear glass systems. Journal Article Buildings 6 2 22 MDPI AG 2075-5309 energy simulation; thermochromics; “intelligent” glazing; energy demand reduction; energy plus; energy efficiency 1 6 2016 2016-06-01 10.3390/buildings6020022 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2017-07-07T15:23:54.3525040 2017-03-29T09:52:54.0210735 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised M. Warwick 1 I. Ridley 2 R. Binions 3 Michael Warwick 0000-0002-9028-1250 4 0032760-03042017122227.pdf warwick2017.pdf 2017-04-03T12:22:27.8570000 Output 6220394 application/pdf Version of Record true 2017-04-03T00:00:00.0000000 true eng
title Variation of Thermochromic Glazing Systems Transition Temperature, Hysteresis Gradient and Width Effect on Energy Efficiency
spellingShingle Variation of Thermochromic Glazing Systems Transition Temperature, Hysteresis Gradient and Width Effect on Energy Efficiency
Michael Warwick
title_short Variation of Thermochromic Glazing Systems Transition Temperature, Hysteresis Gradient and Width Effect on Energy Efficiency
title_full Variation of Thermochromic Glazing Systems Transition Temperature, Hysteresis Gradient and Width Effect on Energy Efficiency
title_fullStr Variation of Thermochromic Glazing Systems Transition Temperature, Hysteresis Gradient and Width Effect on Energy Efficiency
title_full_unstemmed Variation of Thermochromic Glazing Systems Transition Temperature, Hysteresis Gradient and Width Effect on Energy Efficiency
title_sort Variation of Thermochromic Glazing Systems Transition Temperature, Hysteresis Gradient and Width Effect on Energy Efficiency
author_id_str_mv 9fdabb7283ffccc5898cc543305475cf
author_id_fullname_str_mv 9fdabb7283ffccc5898cc543305475cf_***_Michael Warwick
author Michael Warwick
author2 M. Warwick
I. Ridley
R. Binions
Michael Warwick
format Journal article
container_title Buildings
container_volume 6
container_issue 2
container_start_page 22
publishDate 2016
institution Swansea University
issn 2075-5309
doi_str_mv 10.3390/buildings6020022
publisher MDPI AG
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description Due to increasing pressure to reduce the energy demand in buildings, thermochromic thin film based glazing has become a recognized potential solution due to the intrinsic ability to modulate the solar heat gain of a window as a function of the materials temperature. These “intelligent” glazings have been investigated for several years, and it has been found that, through variation of synthetic route, the thermochromic properties (transition temperature, hysteresis gradient and width) can be altered; however, less attention has been applied to how such alterations affect the overall energy savings attributed to the materials. In this study the building simulation software EnergyPlus TM has been used to model a series of idealized thermochromic spectra in a series of different environments to evaluate their energy saving potential against both clear glass systems and industry standards. The idealized spectra are used to see what effect each of the materials thermochromic properties and therefore elucidate which are the most important with respect to the energy saving properties. It was found that the best thermochromic materials were those with a narrow sharp hysteresis and a low transition temperature and result in an increase in energy saving between 30%–45% across the different environments compared to clear glass systems.
published_date 2016-06-01T03:40:15Z
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score 11.012857

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