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An Energy Performance Evaluation of Commercially Available Window Glazing in Darwin’s Tropical Climate

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  • Hooman Mehdizadeh-Rad

    (College of Engineering, IT & Environment, Charles Darwin University, Darwin, NT 0810, Australia
    Energy and Resources Institute, Charles Darwin University, Ellengowan Dr., Brinkin, NT 0810, Australia)

  • Taimoor Ahmad Choudhry

    (College of Engineering, IT & Environment, Charles Darwin University, Darwin, NT 0810, Australia)

  • Anne W. M. Ng

    (College of Engineering, IT & Environment, Charles Darwin University, Darwin, NT 0810, Australia
    Energy and Resources Institute, Charles Darwin University, Ellengowan Dr., Brinkin, NT 0810, Australia)

  • Zohreh Rajabi

    (College of Engineering and Science, Victoria University, Melbourne, VIC 8001, Australia
    Institute for Sustainable Industries & Liveable Cities, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia)

  • Muhammad Farooq Rais

    (Cosmos Science Corporation, 5 Sagar Road, Lahore Cantt, Lahore 54810, Pakistan)

  • Asad Zia

    (School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China)

  • Muhammad Atiq Ur Rehman Tariq

    (College of Engineering and Science, Victoria University, Melbourne, VIC 8001, Australia
    Institute for Sustainable Industries & Liveable Cities, Victoria University, P.O. Box 14428, Melbourne, VIC 8001, Australia)

Abstract

A total of 40% of the world’s energy produced is utilized to maintain thermal comfort for the occupants of the building. Governments are taking measures collectively to regulate energy efficient buildings to reduce carbon emissions globally. Windows account for more than half of total energy losses in the buildings. The employment of energy efficient glazing in the construction industry is not common in Australia. This paper investigates several types of commercially available windows and their effectiveness in the hot and humid climate of Darwin. Although extensive literature is available for cold regions, these windows have not been studied in hot and humid climates such as the climate in Darwin. Building cooling loads of an academic building were calculated using Autodesk Revit Architecture and Carrier HAP. Double glazed variants offered approximately a 5% reduction in cooling loads and had a payback period of nearly 7 to 9 years, depending on the type of gas used to fill the pane cavity. The results indicate that triple glazed, or aerogel-based windows will provide about 11–12 % of energy saving in cooling loads. These can be a viable alternative and have a payback period of 11 years, while their average service life expectancy is 30 years. It was found that the feasibility of efficient glazing depends on market price, building usage, and energy efficiency of an overall building envelope.

Suggested Citation

  • Hooman Mehdizadeh-Rad & Taimoor Ahmad Choudhry & Anne W. M. Ng & Zohreh Rajabi & Muhammad Farooq Rais & Asad Zia & Muhammad Atiq Ur Rehman Tariq, 2022. "An Energy Performance Evaluation of Commercially Available Window Glazing in Darwin’s Tropical Climate," Sustainability, MDPI, vol. 14(4), pages 1-18, February.
  • Handle: RePEc:gam:jsusta:v:14:y:2022:i:4:p:2394-:d:753493
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    References listed on IDEAS

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    Cited by:

    1. Saman Abolghasemi Moghaddam & Catarina Serra & Manuel Gameiro da Silva & Nuno Simões, 2023. "Comprehensive Review and Analysis of Glazing Systems towards Nearly Zero-Energy Buildings: Energy Performance, Thermal Comfort, Cost-Effectiveness, and Environmental Impact Perspectives," Energies, MDPI, vol. 16(17), pages 1-30, August.

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