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Experimental study on the performance of solar window films in office buildings in Kuwait

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Abstract

This work examines the solar performance of double-glazed windows in four offices in ACK buildings with and without solar window film in actual working conditions. Window films are passive thin films stick to the interior or exterior of windows to effect various solar-optical impacts including energy saving, UV reduction, and increased thermal comfort. For this study, the 3M Neutral 20 and 70 are selected which are made of multilayer nanofilms of 220 SAN25/THV 95-nm thick reflective layers. Real-time measurements of temperature, humidity, and luminous were conducted in 5 min intervals over the months of June, July, and August 2019 and data stored through WiFi system in iClouds. Arduino-type microprocessors and various temperature-humidity, and LUX sensors were assembled and programmed to transfer and store data in real time. Exploring and analyzing the data collected for four offices with and without window films in summer of Kuwait, it is evident that window film has good potential to save water by preserving interior humidity to the level of human comfort, decrease interior temperature to save energy and reduce CO2 footprints, to restrict the solar UV rays to minimum level, and to reduce visual impacts of high solar luminous. The benefits and drawbacks of the selected window films are discussed here for the weather condition of Kuwait.

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Acknowledgments

The authors of this paper wish to greatly acknowledge the Australian College of Kuwait (ACK) for providing its premises and facilities to conduct this research.

Funding

This study was supported by Kuwait Foundation for the Advancement of Science (KFAS) under grant no. PN18-15EE-04.

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Authors and Affiliations

  1. Mechanical Engineering Department, Australian College of Kuwait, 13015, Safat, Kuwait

    Ahmad Sedaghat, Fadi Alkhatib, Farhad Sabri & Hayder Salem

  2. Department of Mechanical Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran

    Seyed Amir Abbas Oloomi

  3. Electrical Engineering Department, Australian College of Kuwait, 13015, Safat, Kuwait

    Mohammad Sabati & Waqar Jan Zafar

  4. Young Researchers and Elite Club, Yazd Branch, Islamic Azad University, Yazd, Iran

    Mahdi Ashtian Malayer

  5. Department of Mechanical Engineering, Yazd University, Yazd, Iran

    Amirhossein Negahi

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  1. Ahmad Sedaghat
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  2. Fadi Alkhatib
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  3. Seyed Amir Abbas Oloomi
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  4. Farhad Sabri
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  5. Hayder Salem
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  9. Amirhossein Negahi
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Correspondence to Ahmad Sedaghat.

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Guest Editor: Sherif El-Eskandarany

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This article is part of the topical collection: Nanotechnology in Arab Countries

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Sedaghat, A., Alkhatib, F., Oloomi, S.A.A. et al. Experimental study on the performance of solar window films in office buildings in Kuwait. J Nanopart Res 22, 85 (2020). https://doi.org/10.1007/s11051-020-04789-8

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