The SARS-CoV-2 pandemic has aroused great interest in the HVAC community, both as regards to the design of new systems and for the management and operation strategies of the existing ones. The risk management plays a key role in all-air systems based on air recirculation among segregated spaces.
Following an analytical approach, this paper – published on AiCARR’s houseorgan “AiCARR Journal” n. 63 – assesses the infection risk in several HVAC systems layouts. It takes into account the role of air renewal and recirculation and the gain made possible by means of virus charge removal or deactivation (through filtration or other technologies) with special regard to the management of air flows that depends on the chosen plant layout.
The full article is available at the following link: http://www.aicarrjournal.org/cont/journals-articles/830/volume-september-remarks-recirculation-hvac-systems-3541allasp1.pdf