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An innovative ventilation system hygienizing the air in continuous mode

Author

Listed:
  • Müller, Jarosław
  • Żmuda, Ireneusz
  • Dziechciowski, Zygmunt
  • Polus, Michał
  • Grądziel, Sławomir

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.

Suggested Citation

  • Müller, Jarosław & Żmuda, Ireneusz & Dziechciowski, Zygmunt & Polus, Michał & Grądziel, Sławomir, 2025. "An innovative ventilation system hygienizing the air in continuous mode," Energy, Elsevier, vol. 329(C).
    • Handle: RePEc:eee:energy:v:329:y:2025:i:c:s0360544225022170
    DOI: 10.1016/j.energy.2025.136575
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    References listed on IDEAS

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    1. Klemeš, Jiří Jaromír & Fan, Yee Van & Jiang, Peng, 2020. "The energy and environmental footprints of COVID-19 fighting measures – PPE, disinfection, supply chains," Energy, Elsevier, vol. 211(C).
    2. Barone, Giovanni & Buonomano, Annamaria & Forzano, Cesare & Giuzio, Giovanni Francesco & Palombo, Adolfo, 2022. "Energy, economic, and environmental impacts of enhanced ventilation strategies on railway coaches to reduce Covid-19 contagion risks," Energy, Elsevier, vol. 256(C).
    3. Rubina, Aleš & Uher, Pavel & Salajka, Radek & Baroň, Alexandr & Cakl, Dominik & Šmak, Milan & Barnat, Jan & Varbanov, Petar Sabev, 2024. "Energy and acoustic evaluation of classroom ventilation and its influence on the design of the air-conditioning system," Energy, Elsevier, vol. 294(C).
    4. Thi Tham Nguyen & Graham R. Johnson & Scott C. Bell & Luke D. Knibbs, 2022. "A Systematic Literature Review of Indoor Air Disinfection Techniques for Airborne Bacterial Respiratory Pathogens," IJERPH, MDPI, vol. 19(3), pages 1-12, January.
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