A novel methodology and new concept of SARS-CoV-2 elimination in heating and ventilating air conditioning systems using waste heat recovery | Zendy

Naser Rezaei | Zendy; Moharram Jafari | Zendy; Ata Nazari | Zendy; S. Salehi | Zendy; Faramarz Talati | Zendy; Reza Torab | Zendy; Rahim Nejadrahim | Zendy

Open Access

A novel methodology and new concept of SARS-CoV-2 elimination in heating and ventilating air conditioning systems using waste heat recovery

Author(s) -

Naser Rezaei,

Moharram Jafari,

Ata Nazari,

S. Salehi,

Faramarz Talati,

Reza Torab,

Rahim Nejadrahim

Publication year - 2020

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/5.0021575

Subject(s) - cleanroom , hvac , air conditioning , duct (anatomy) , environmental science , energy recovery ventilation , room air distribution , condenser (optics) , heat exchanger , respirator , covid-19 , ventilation (architecture) , waste management , heat recovery ventilation , waste heat , materials science , engineering , meteorology , mechanical engineering , medicine , nanotechnology , physics , light source , disease , optics , pathology , infectious disease (medical specialty) , composite material

Heating and ventilation air conditioning systems in hospitals (cleanroom HVAC systems) are used to control the transmission/spreading of airborne diseases such as COVID-19. Air exiting from these systems may contribute to the spreading of coronavirus droplets outside of hospitals. Some research studies indicate that the shortest time of survival of SARS-CoV-2 in aerosol form (as droplets in the air) is four hours and the virus becomes inactive above 60 °C air temperature. Therefore, SARS-CoV-2 droplets cannot exit from the exhaust duct if the temperature is above 60 °C. At the condenser, heat is dissipated in the form of hot air which could be utilized to warm the exhaust air. The objective of this paper is to establish a novel technique for eliminating SARS-CoV-2 from cleanroom HVAC systems using the recovered heat of exhaust air. This can eliminate SARS-CoV-2 and reduce the greenhouse effect.

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