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The effect of aerogel glazing on daylight and heat gain in school buildings in hot and dry climate.

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Title: The effect of aerogel glazing on daylight and heat gain in school buildings in hot and dry climate.
Authors: Mohamed, Abdelaziz Farouk1 (AUTHOR), Amir, Amira Ahmed2,3 (AUTHOR) Amira.Mohammed@student.aast.edu, Ragab, Ayman3 (AUTHOR)
Source: Environment, Development & Sustainability. Jan2026, Vol. 28 Issue 1, p1805-1826. 22p.
Subject Terms: *Aerogels, *Daylight, *Thermal conductivity, *School buildings, *Heat radiation & absorption, *Arid regions climate, *Nanostructured materials, *House insulation
Abstract: Nanomaterial technology involves the fabrication and manipulation of materials at the nanoscale, which can result in novel properties and applications. Aerogel is a nanomaterial that has remarkable properties such as high thermal resistance and optical clarity. These features make it a suitable material for glazing windows in school buildings located in hot and arid regions, where daylighting and thermal performance are important design criteria. This study aims to evaluate the performance of aerogel-glazed windows in classrooms with different orientations and compare them with conventional windows. The study uses Design-Builder software to simulate the daylighting and thermal performance of the classrooms with aerogel-glazed windows in different orientations. The findings show that aerogel glazing on the northern and southern façades reduces heat gain from windows by 7.46 and 26.88%, respectively. East and west orientations should be avoided due to extreme solar heat gain through exterior windows. Investigated glazing systems meet the LEED V4 spatial daytime autonomy (sDA) standards for regularly occupied floor areas, with an acceptable sDA of ≥ 55% for all building orientations. The northern façade exhibited the most favorable results, preserving nearly 69.52% of spatial daylight autonomy and an average daylight factor of 2.65%. The northern orientation also had the highest useful daylight illuminance of 89.6%. Aerogel glazing is an effective building insulation technology that balances classroom window-specific heat gain with daylight in hot dry locations. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 191807192
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: The effect of aerogel glazing on daylight and heat gain in school buildings in hot and dry climate.
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  Data: <searchLink fieldCode="AR" term="%22Mohamed%2C+Abdelaziz+Farouk%22">Mohamed, Abdelaziz Farouk</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Amir%2C+Amira+Ahmed%22">Amir, Amira Ahmed</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<i> Amira.Mohammed@student.aast.edu</i><br /><searchLink fieldCode="AR" term="%22Ragab%2C+Ayman%22">Ragab, Ayman</searchLink><relatesTo>3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Environment%2C+Development+%26+Sustainability%22">Environment, Development & Sustainability</searchLink>. Jan2026, Vol. 28 Issue 1, p1805-1826. 22p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Aerogels%22">Aerogels</searchLink><br />*<searchLink fieldCode="DE" term="%22Daylight%22">Daylight</searchLink><br />*<searchLink fieldCode="DE" term="%22Thermal+conductivity%22">Thermal conductivity</searchLink><br />*<searchLink fieldCode="DE" term="%22School+buildings%22">School buildings</searchLink><br />*<searchLink fieldCode="DE" term="%22Heat+radiation+%26+absorption%22">Heat radiation & absorption</searchLink><br />*<searchLink fieldCode="DE" term="%22Arid+regions+climate%22">Arid regions climate</searchLink><br />*<searchLink fieldCode="DE" term="%22Nanostructured+materials%22">Nanostructured materials</searchLink><br />*<searchLink fieldCode="DE" term="%22House+insulation%22">House insulation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Nanomaterial technology involves the fabrication and manipulation of materials at the nanoscale, which can result in novel properties and applications. Aerogel is a nanomaterial that has remarkable properties such as high thermal resistance and optical clarity. These features make it a suitable material for glazing windows in school buildings located in hot and arid regions, where daylighting and thermal performance are important design criteria. This study aims to evaluate the performance of aerogel-glazed windows in classrooms with different orientations and compare them with conventional windows. The study uses Design-Builder software to simulate the daylighting and thermal performance of the classrooms with aerogel-glazed windows in different orientations. The findings show that aerogel glazing on the northern and southern façades reduces heat gain from windows by 7.46 and 26.88%, respectively. East and west orientations should be avoided due to extreme solar heat gain through exterior windows. Investigated glazing systems meet the LEED V4 spatial daytime autonomy (sDA) standards for regularly occupied floor areas, with an acceptable sDA of ≥ 55% for all building orientations. The northern façade exhibited the most favorable results, preserving nearly 69.52% of spatial daylight autonomy and an average daylight factor of 2.65%. The northern orientation also had the highest useful daylight illuminance of 89.6%. Aerogel glazing is an effective building insulation technology that balances classroom window-specific heat gain with daylight in hot dry locations. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=191807192
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1007/s10668-024-04963-1
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 22
        StartPage: 1805
    Subjects:
      – SubjectFull: Aerogels
        Type: general
      – SubjectFull: Daylight
        Type: general
      – SubjectFull: Thermal conductivity
        Type: general
      – SubjectFull: School buildings
        Type: general
      – SubjectFull: Heat radiation & absorption
        Type: general
      – SubjectFull: Arid regions climate
        Type: general
      – SubjectFull: Nanostructured materials
        Type: general
      – SubjectFull: House insulation
        Type: general
    Titles:
      – TitleFull: The effect of aerogel glazing on daylight and heat gain in school buildings in hot and dry climate.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Mohamed, Abdelaziz Farouk
      – PersonEntity:
          Name:
            NameFull: Amir, Amira Ahmed
      – PersonEntity:
          Name:
            NameFull: Ragab, Ayman
    IsPartOfRelationships:
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          Dates:
            – D: 01
              M: 01
              Text: Jan2026
              Type: published
              Y: 2026
          Identifiers:
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              Value: 1387585X
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            – Type: volume
              Value: 28
            – Type: issue
              Value: 1
          Titles:
            – TitleFull: Environment, Development & Sustainability
              Type: main
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