Achieving proper ventilation in indoor spaces became one of the main challenges that HVAC designers and engineers often face. Ventilation effectiveness can be increased by drawing more fresh air into the space. However, this will take a toll on the energy efficiency of the building. In certain circumstances, opting for a displacement-type ventilation system has significantly improved air quality and thermal comfort. Therefore, In this blog, we will learn the details of ventilation systems used in the HVAC industry along with a simulation performed on the case study to compare the performance of traditional and displacement systems using the Autonomous HVAC CFD (AHC) application.