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Abstract:	International existieren verschiedene genormte Raumbrandprüfungen, in welchen das Brandverhalten von Wand- und Deckenprodukten unter realitätsnahen Einbaubedingungen untersucht wird. Die Prüfmethoden unterscheiden sich zum Teil erheblich hinsichtlich der Raumgeometrie, der Ventilationsöffnungen bzw. -verhältnisse sowie der Art und Leistung der verwendeten Zündquellen. Auf der Basis von Brandsimulationsrechnungen mit dem CFD-Code FDS wurde die Intensität der resultierenden thermischen Produktbeanspruchung für ausgewählte Prüfräume vergleichend analysiert. Die Simulationsergebnisse zeigen, dass zwischen den betrachteten Methoden deutliche Unterschiede bestehen, die zu inkonsistenten Produktbeurteilungen führen können. Comparative analysis of thermal exposure conditions in standard room fire tests. Various standards exist worldwide that describe room fire tests for determining the reaction to fire behaviour of wall and ceiling products under end-use conditions. The test methods differ with respect to the room geometry, the ventilation conditions and the type and heat output of the ignition source. Numerical simulations were performed using the CFD code FDS to comparatively analyse the resulting thermal exposure conditions for selected test rooms. The simulation results exhibit considerable differences between the analysed test methods, which may lead to inconsistent product assessments.
Source:	Bauphysik 33 (2011), No. 1
Page/s:	15-26
Language of Publication:	German

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