HVAC system requirements for protection against epidemics similar to Covid-19

Ali Kemal CAKIR *

Department of Machinery and Metal Technologies, Aydin Vocational School, Adnan Menderes University, PK 09100, Center, Aydin, Turkey.
 
Review
International Journal of Frontiers in Engineering and Technology Research, 2021, 01(01), 001–013.
Article DOI: 10.53294/ijfetr.2021.1.1.0042
Publication history: 
Received on 24 March 2021; revised on 28 April 2021; accepted on 30 April 2021
 
Abstract: 
Tuberculosis and in some cases, flu, colds and other airborne diseases. Since research is one of the biggest concerns of causing influenza pandemics, most research surrounding aerosol contamination revolves around environmental influences on the influenza virus. Many literatures suggest that influenza is transmitted primarily through close contact, such as exposure to large respiratory droplets, direct mouth-to-mouth contact and short-term exposure to infectious aerosols.
Diffusion can be accelerated or controlled by heating, ventilation and air conditioning (HVAC) systems. Researches continue that advances state of knowledge in the specific techniques that control airborne infectious disease transmission through HVAC systems, including ventilation rates, airflow regimes, filtration, and ultraviolet germicidal irradiation (UVGI). In this paper three methods of transmission of Airborne Infectious Diseases are discussed, namely through direct contact, large droplet contact, inhalation of droplet core.
An extensive literature review of many papers was conducted infectious diseases spread in several different ways and the transmission of infectious viruses. This review targets direct and indirect contact as well as infectious viruses known to be transmitted from the air. And he focused on preventive ventilation systems for these targets. This paper will give idea to support further research on engineering controls to reduce infectious disease transmission.
 
Keywords: 
Epidemics; Covid 19; Ventilation; HVAC Systems
 
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