An innovative ventilation system hygienizing the air in continuous mode

Jarosław Müller, Ireneusz Żmuda, Zygmunt Dziechciowski, Michał Polus and Sławomir Grądziel

Energy, 2025, vol. 329, issue C

Abstract: This study investigates the impact of a UV-C lamp-based air hygienization device on indoor air quality, airflow resistance, reduction of bioaerosol and acoustic performance in real-world settings, including hotels, offices, and commercial premises. The results demonstrate that the device effectively improves air quality through disinfection without increasing airflow resistance, reducing the supply air flow rate od increasing the energy demand regardless of room type. Acoustic analysis confirms that introducing the UV-C lamp into the HVAC system does not significantly increase noise levels; in some cases, it even reduces noise due to the linearization of airflow and reduction of turbulence. Furthermore, the positioning of the device influences acoustic performance, with optimal noise reduction observed at a 0° installation angle and airflow rates below 700 m3/h. The study highlights the system's operational efficiency, minimal energy consumption, and improved indoor environmental quality, making it a practical and effective solution for enhancing air quality in various commercial and residential environments.

Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:329:y:2025:i:c:s0360544225022170

DOI: 10.1016/j.energy.2025.136575

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