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E. Bajraktari, J. Lechleitner, A. Mahdavi:
"Measurement and prediction of sound insulation of a double leaf wall-system with openings for natural ventilation";
Talk: Current Topics in Building Performance WinterTerm 2015/2016, Wien; 2015-10-09 - 2016-01-22.

Introduction
Goal of the study; Motivation
Sound insulation of compound partitions; Noise as problem
Background - previous research efforts
Approach
Variables which influence the sound insulation do double facades with openings
Experimental double wall
Opening size, Distance
Cavity sound absorption
An example of a sequence of configurations.
Laboratory measurements
Field measurements
Simulations
Results
Initial measurements
Impact of the size of the openings
Impact of distance
Impact of cavity sound absorption
Behavior of the system throughout frequency spectrum
Multivariable analysis and prediction models
Comparison of prediction results
Field measurement results
Simulation results
Discussion
Conclusion

Introduction
Goal of the study; Motivation
Sound insulation of compound partitions; Noise as problem
Background - previous research efforts
Approach
Variables which influence the sound insulation do double facades with openings
Experimental double wall
Opening size, Distance
Cavity sound absorption
An example of a sequence of configurations.
Laboratory measurements
Field measurements
Simulations
Results
Initial measurements
Impact of the size of the openings
Impact of distance
Impact of cavity sound absorption
Behavior of the system throughout frequency spectrum
Multivariable analysis and prediction models
Comparison of prediction results
Field measurement results
Simulation results
Discussion
Conclusion

Noise control, Facade Technology, Ventilation, Acoustical Insulation;

Project Head Ardeshir Mahdavi:
Innovative Fassaden für natürliche Raumlüftung und optimierten Schallschutz ¿ LEIse_WAND