Environmental parameters assessment of a new diffuser for air cooling/heating system: Measurements and numerical validation

Air distribution of HVAC systems is the most popular type used in building sector, having a relevant impact on indoor air quality and occupant wellness. Many types research developed optimal solutions for system’s design, focusing specific components system, airflow geometry ducts, size shape position diffusers. However, few works literature proposed globally experimental simulation analysis an system with variable mass flaw rate. Along this line, presented investigates potentialities new ceiling diffuser, installed exhibition room. This provides flow rate thanks to its configuration, providing adequate thermal comfort. A warm wall chosen as heating system. Several tests are carried out, six cooling two different volumetric rates supply temperature The combination methods, measurement campaigns computational fluid dynamics (CFD) technique represent suitable approach examine environment. In general, results show strong capability diffuser provide uniform velocity field inside Moreover, numerical data significantly comparable average deviation 1% lower temperature, guaranteeing understudy environmental parameters vertical horizontal planes.