Evaluation of in-duct UV-C lamp array on air disinfection: A numerical analysis

Atcı F., Çetin Y. E., Avcı M., Aydın O.

SCIENCE AND TECHNOLOGY FOR THE BUILT ENVIRONMENT, cilt.27, sa.1, ss.98-108, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 27 Sayı: 1
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1080/23744731.2020.1776549
  • Dergi Adı: SCIENCE AND TECHNOLOGY FOR THE BUILT ENVIRONMENT
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Compendex, INSPEC
  • Sayfa Sayıları: ss.98-108
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

In-duct ultraviolet germicidal irradiation systems are effective systems that are used in disinfection of pathogenic particles transported by air that moving through the ventilation systems. Proper design of these systems is quite important for energy consumption and disinfection performance. In this study, effect of four different lamp arrays within a square cross-section ventilation duct on the average UV dose, UV dose distribution and disinfection rate are examined by using computational fluid dynamics. The standard k-epsilon turbulence model and the discrete phase modeling are used to analyze airflow and particle distribution within the duct, respectively. Also, Discrete Ordinates (DO) radiation model is employed to obtain the irradiation field formed by each UV lamp. It is disclosed that UV lamp arrangement within duct significantly affects UV dose distribution.