The paper is oriented on the effective ventilation, heating and cooling systems in office buildings by utilization of renewable energy sources. All these systems must be in mutual harmony and ensure thermal comfort. Ventilation system must use the power of wind, the heated air from the double skin facade, heat recovery system, preheating or cooling in the ground channel. In the summer, there must be used the night natural cooling of building. For the heating is the most suitable to use radiant floor heating (30%) in combination with radiant ceiling heating (70%). The next progressive way is the combination of new concrete core conditioning and floor convector heaters.
Effective ventilation and air disinfection system for reducing coronavirus disease 2019 (COVID-19) infection risk in office buildings
