Fig 1.
A scheme of the testing stand—testing rooms, top-view.
Fig 2.
A scheme of measuring stand—ventilation system with measurement and adjustment elements.
Table 1.
Results of the airflow volume measurements and of the positive pressure generated during the tests of the room leaktightness.
Fig 3.
Airflow rate versus pressure difference data from pressurization test.
Table 2.
Summary of the test series.
Fig 4.
Results of visualization performed with the door swing towards negatively pressurized zone—case I, Δp = 2,5 Pa, a) 10cm opening width, b) 50cm opening width, c) „escape” mode.
Fig 5.
Results of visualization performed with the door swing towards negatively pressurized zone—case I, Δp = 12.5Pa a) 10cm opening width, b) 50cm opening width, c) „escape” mode.
Fig 6.
Results of visualization performed with the door swing towards negatively pressurized zone- case I, Δp = 25 Pa a) 10cm opening width, b) 50cm opening width, c) „escape” mode.
Fig 7.
Results of visualization performed with the door swing towards positively pressurized zone—case II, Δp = 2.5 Pa a) 10cm opening width, b) 50 cm opening width, c) „escape” mode.
Fig 8.
Results of visualization performed with the door swing towards positively pressurized zone—case II, Δp = 12.5 Pa a) 10cm opening width, b) 50 cm opening width, c) „escape” mode.
Fig 9.
Results of visualization performed with the door swing towards positively pressurized zone—case II, Δp = 25 Pa a) 10cm opening width, b) 50cm opening width, c) „escape” mode.
Fig 10.
Level of contaminants migration—door open towards negatively pressurized zone.
Fig 11.
Degree of contaminants migration—door open towards positive pressure.