Personalized HVAC system in a sustainable office building - Field measurement of productivity and air change effectiveness

For that study, experiments with task ambient conditioning systems (TAC) have been carried out, to investigate the effects on thermal comfort and productivity of workers. . With that system, a pressurized air is blown from the floor through outlets at the floor and near the desks.The air change efficiency of that system that provides fresh air at the occupants' breathing zone has been evaluated too, using SF6 tracer gas. Conclusions are presented.