In order to evaluate the air quality and the thermal
comfort being provided by these two different ventilation
systems each being combined with a radiant cooled ceiling,
a comprehensive experimental investigation w4x in a
test chamber was carried out at the Hermann-Rietschel-Institut
for Heating and Air-Conditioning 3 of the Technical
University of Berlin, Germany. One of the goals of this
study was to point out the boundary conditions, when a
displacement ventilation system combined with a cooled
ceiling can comfortably provide better air quality in the
occupied zone than a mixing airflow system.
This report presents major results of the air quality
investigation considering the thermal comfort level provided
as well, since these two features are related to each
other when a displacement ventilation system is being used
in spaces with high cooling loads.