variations. The results of the variations C2_S1,2 and
C1,2_S1 will be described for both displacement ventilation
and mixing ventilation. However, as the mixing ventilation
does not create a rather distinctive air movement in
the space, only the airflow pattern with displacement venti- 8 lation will be shown schematically Figs. 7 and 10 . Ž .
The following Figs. 9 and 11 present the profiles of the
local air temperature difference Dtair, x for the tests with
the cooled ceiling and displacement ventilation, as only
this combination causes significant temperature profiles.
The air temperature distribution with mixing flow was
always almost uniform. Figs. 8 and 12 present the relative
contamination efficiency directly comparing the tracer gas
concentrations with displacement flow and mixing flow.
All these figures show the data vs. the height for three
different axes, where each point in the graphs represents
the average of two values measured in one respective
height compare Fig. 6 .
variations. The results of the variations C2_S1,2 andC1,2_S1 will be described for both displacement ventilationand mixing ventilation. However, as the mixing ventilationdoes not create a rather distinctive air movement inthe space, only the airflow pattern with displacement venti- 8 lation will be shown schematically Figs. 7 and 10 . Ž .The following Figs. 9 and 11 present the profiles of thelocal air temperature difference Dtair, x for the tests withthe cooled ceiling and displacement ventilation, as onlythis combination causes significant temperature profiles.The air temperature distribution with mixing flow wasalways almost uniform. Figs. 8 and 12 present the relativecontamination efficiency directly comparing the tracer gasconcentrations with displacement flow and mixing flow.All these figures show the data vs. the height for threedifferent axes, where each point in the graphs representsthe average of two values measured in one respectiveheight compare Fig. 6 .
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