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Energy Savings and Carbon Emission Mitigation Prospective of Building’s Glazing Variety, Window-to-Wall Ratio and Wall Thickness

Author

Listed:
  • Saboor Shaik

    (School of Mechanical Engineering, Vellore Institute of Technology, Vellore 632014, India)

  • Kirankumar Gorantla

    (Department of Mechanical Engineering, Sasi Institute of Technology and Engineering, Tadepalligudem 534101, India)

  • Aritra Ghosh

    (College of Engineering, Mathematics and Physical Sciences, Renewable Energy, University of Exeter, Cornwall TR10 9FE, UK)

  • Chelliah Arumugam

    (School of Mechanical Engineering, Vellore Institute of Technology, Vellore 632014, India)

  • Venkata Ramana Maduru

    (School of Mechanical Engineering, Vellore Institute of Technology, Vellore 632014, India)

Abstract

Strategic selection of glazing, its window-to-wall ratio, and wall thickness of building reduce the energy consumption in the built environment. This paper presents the experimental results of solar optical properties of five glasses: clear, tinted bronze, tinted green, bronze reflective, and polymer dispersed liquid crystal glasses. Laterite room models were modeled with four different thicknesses and four different glasses using Design Builder, and thermal simulation tests were carried out using Energy Plus. The energy savings and carbon emission mitigation prospective of a building’s glazing variety, window-to-wall ratio (WWR), and wall thickness were investigated. The results revealed that among the five window glasses studied, the polymer dispersed liquid crystal glazing window (PDLCGW) was found to be the most energy-efficient for low heat gain in laterite rooms. The laterite room with 0.23 m wall thickness and 40% PDLCGW WWR reduced 18.9% heat gain in comparison with the laterite room with 0.23 m wall thickness and 40% clear glass WWR. The laterite room of 0.23 m wall thickness with PDLCGW glazing of 40% WWR enhanced cooling cost savings up to USD 31.9 compared to the laterite room of 0.08 m wall thickness with 40% PDLCGW. The laterite room of 0.23 m wall thickness with PDLCGW glazing of 40% WWR also showed improved carbon mitigation of 516 kg of CO 2 /year compared to the 0.23 m wall thickness laterite room of 40% WWR with clear glass glazing. The results also showed that the laterite room with 0.23 m wall thickness and 100% clear glass WWR increased heat gain by 28.2% in comparison with the laterite room with 0.23 m wall thickness and 20% clear glass WWR. The results of this article are essential for the strategic design of buildings for energy saving and emission reduction.

Suggested Citation

  • Saboor Shaik & Kirankumar Gorantla & Aritra Ghosh & Chelliah Arumugam & Venkata Ramana Maduru, 2021. "Energy Savings and Carbon Emission Mitigation Prospective of Building’s Glazing Variety, Window-to-Wall Ratio and Wall Thickness," Energies, MDPI, vol. 14(23), pages 1-19, December.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:23:p:8020-:d:692693
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    References listed on IDEAS

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    Cited by:

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    3. Shaik, Saboor & Maduru, Venkata Ramana & Kontoleon, Karolos J. & Arıcı, Müslüm & Gorantla, Kirankumar & Afzal, Asif, 2022. "Building glass retrofitting strategies in hot and dry climates: Cost savings on cooling, diurnal lighting, color rendering, and payback timeframes," Energy, Elsevier, vol. 243(C).
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    5. Dong, Qichang & Zhao, Xiaoqing & Song, Ye & Qi, Jiacheng & Shi, Long, 2024. "Determining the potential risks of naturally ventilated double skin façades," Renewable and Sustainable Energy Reviews, Elsevier, vol. 191(C).

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