Análise da qualidade do ar interior e da variação de carga térmica referente ao incremento da vazão de renovação mecânica em ambientes públicos

Abstract

Indoor air quality in public environments has been neglected for a long time, with the advent of the Covid-19 pandemic this scenario has changed since air is the principal way of infection of SARS-CoV-2. At a time when there are no accessible medicines for the treatment of the disease, prevention becomes the main battlefront, in this sense the air conditioning systems occupy a leading role in the fight against the virus. To avoid contagion of infectious diseases through the air, the HVAC systems must be properly dimensioned in order to propose an adequate rate of air renewal. In this work, Brazilian regulatory standards for dimensioning HVAC systems, more specifically air renewal rates, are evaluated in comparison to foreign standards and recent references on the forms of infection of SARS-CoV-2. In addition, the energy cost of adding outside air to the air-conditioned environment is also analyzed in order to achieve minimum quality values.