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Full scale experimentation on a new translucent passive solar wall combining silica aerogels and phase change materials.

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Title: Full scale experimentation on a new translucent passive solar wall combining silica aerogels and phase change materials.
Authors: Berthou, Yannick1, Biwole, Pascal Henry1,2 phbiwole@unice.fr, Achard, Patrick1, Sallée, Hébert3, Tantot-Neirac, Mireille1, Jay, Frédéric4
Source: Solar Energy. May2015, Vol. 115, p733-742. 10p.
Subjects: Aerogels, Silicon compounds, Cutting (Materials), Solar cells, Artificial photosynthesis
Abstract: This paper presents the first passive solar wall providing simultaneously super insulation, heat storage and daylighting to the inner space. The wall’s external layer is composed of a silica aerogels bed for high insulation and solar radiation transmission. The second layer, internal, is composed of glass bricks filled with a eutectic phase change material (PCM) for heat storage and restitution. The whole wall is translucent. The experimentations carried out to characterize thermal and optical properties of the materials used are described. Then results are given for a full scale comparative experimentation on a twin zones building located in the south of France for the solar wall and a standard opaque high thermal capacity wall. Results show the heat losses through the wall are very low while the heat and light gains are high: The U value of the solar wall is 0.59 W m −1 K −1 and 0.72 W m −1 K −1 respectively when the PCM is in liquid and solid state. With the test building in free floating condition, the temperature difference between the outdoor and indoor air provided by the wall is about 9 °C in winter. The wall can provide up to 500 lux to the inner environment, which is sufficient for conference rooms. The tested wall has proven more effective in winter and shoulder season, particularly for cold sunny climates, but may cause overheating in summer. [ABSTRACT FROM AUTHOR]
Copyright of Solar Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 102319043
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Full scale experimentation on a new translucent passive solar wall combining silica aerogels and phase change materials.
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  Data: <searchLink fieldCode="AR" term="%22Berthou%2C+Yannick%22">Berthou, Yannick</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Biwole%2C+Pascal+Henry%22">Biwole, Pascal Henry</searchLink><relatesTo>1,2</relatesTo><i> phbiwole@unice.fr</i><br /><searchLink fieldCode="AR" term="%22Achard%2C+Patrick%22">Achard, Patrick</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sallée%2C+Hébert%22">Sallée, Hébert</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Tantot-Neirac%2C+Mireille%22">Tantot-Neirac, Mireille</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Jay%2C+Frédéric%22">Jay, Frédéric</searchLink><relatesTo>4</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Solar+Energy%22">Solar Energy</searchLink>. May2015, Vol. 115, p733-742. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Aerogels%22">Aerogels</searchLink><br /><searchLink fieldCode="DE" term="%22Silicon+compounds%22">Silicon compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Cutting+%28Materials%29%22">Cutting (Materials)</searchLink><br /><searchLink fieldCode="DE" term="%22Solar+cells%22">Solar cells</searchLink><br /><searchLink fieldCode="DE" term="%22Artificial+photosynthesis%22">Artificial photosynthesis</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This paper presents the first passive solar wall providing simultaneously super insulation, heat storage and daylighting to the inner space. The wall’s external layer is composed of a silica aerogels bed for high insulation and solar radiation transmission. The second layer, internal, is composed of glass bricks filled with a eutectic phase change material (PCM) for heat storage and restitution. The whole wall is translucent. The experimentations carried out to characterize thermal and optical properties of the materials used are described. Then results are given for a full scale comparative experimentation on a twin zones building located in the south of France for the solar wall and a standard opaque high thermal capacity wall. Results show the heat losses through the wall are very low while the heat and light gains are high: The U value of the solar wall is 0.59 W m −1 K −1 and 0.72 W m −1 K −1 respectively when the PCM is in liquid and solid state. With the test building in free floating condition, the temperature difference between the outdoor and indoor air provided by the wall is about 9 °C in winter. The wall can provide up to 500 lux to the inner environment, which is sufficient for conference rooms. The tested wall has proven more effective in winter and shoulder season, particularly for cold sunny climates, but may cause overheating in summer. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Solar Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.solener.2015.03.038
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        Text: English
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        PageCount: 10
        StartPage: 733
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      – SubjectFull: Aerogels
        Type: general
      – SubjectFull: Silicon compounds
        Type: general
      – SubjectFull: Cutting (Materials)
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      – SubjectFull: Solar cells
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      – SubjectFull: Artificial photosynthesis
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      – TitleFull: Full scale experimentation on a new translucent passive solar wall combining silica aerogels and phase change materials.
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              M: 05
              Text: May2015
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