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Use of Insulation Based on Nanomaterials to Improve Energy Efficiency of Residential Buildings in a Hot Desert Climate

Author

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  • Ahmed Abdelrady

    (Department of Water Management, Delft University of Technology, 2600 GA Delft, The Netherlands)

  • Mohamed Hssan Hassan Abdelhafez

    (Department of Architecture, Faculty of Engineering, Aswan University, Aswan 81542, Egypt
    Department of Architecture Engineering, Faculty of Engineering, University of Hail, Hail 2440, Saudi Arabia)

  • Ayman Ragab

    (Department of Architecture, Faculty of Engineering, Aswan University, Aswan 81542, Egypt)

Abstract

Building insulation based on nanomaterials is considered one of the most effective means of reducing energy consumption in the hot desert climate. The application of an energy-efficient insulation system can significantly decrease the energy consumed via a building’s air-conditioning system during the summer. Hence, building insulation has become an interesting research topic, especially with regards to the use of insulation based on nanomaterials due to their low U-values. In the present study, the use of nano vacuum insulation panels (VIPs) or polystyrene foam in the walls enabled a significant reduction in the annual energy consumption, a savings of 23% compared to the uninsulated wall in a study in New Aswan City. The application of nanogel glazing to the windows (two layers of clear glass filled with the nanogel) achieved approximately 11% savings in annual energy. This savings, twice that obtained by using double-glazed windows, could be due to the low U-value of nanogel compared to the U-values of argon or air. The embedded nanogel layer between two layers of argon and two layers of single clear glass showed a significant reduction in annual energy consumption, saving 26% compared to the use of a single layer of glass. Moreover, the integration between this window and embedded walls with 50 mm of polystyrene foam exhibited a significant improvement of energy efficiency by 47.6% while presenting the lowest value of simple payback period (SPP). This research provides a way for buildings to be insulated to make them more energy efficient as well as attractive from the economic standpoint.

Suggested Citation

  • Ahmed Abdelrady & Mohamed Hssan Hassan Abdelhafez & Ayman Ragab, 2021. "Use of Insulation Based on Nanomaterials to Improve Energy Efficiency of Residential Buildings in a Hot Desert Climate," Sustainability, MDPI, vol. 13(9), pages 1-17, May.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:9:p:5266-:d:550681
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    References listed on IDEAS

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    2. Jerzy Szyszka, 2022. "From Direct Solar Gain to Trombe Wall: An Overview on Past, Present and Future Developments," Energies, MDPI, vol. 15(23), pages 1-25, November.

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