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O. Cakir, J. Lechleitner, A. Mahdavi:
"Simulation model assessment of a sound insulating double facade system with openings for natural ventilation under guidance of laboratory measurements";
Talk: architecture technology - ICONARCh - International Congress of Architecture, Konya, Türkei; 2012-11-15 - 2012-11-17; in: "architecture technology - ICONARCh - International Congress of Architecture", A. Alkan et al. (ed.); Selcuklu Municipality of Konya, (2012), 35 - 42.

Noise control and natural ventilation are two main building physics issues which have contradictory principles. While natural ventilation needs opeings on the facade in order to let fresh air in, the desired acoustic insulation is provided with minimum openings or without any opening on the wall. This paper presents a comparison between the simulation model results and laboratory measurements of a double facade system which is proposed in order to minimize outdoor noise coming through facade openings in naturally ventilated buildings. The double facade with twenty five openable equal-size particleboard panels on each side was constructed as a full scale model in the laboartory and the same setup was modeled in a computer simulation program. Different parts from these two parallel walls were taken out and the effect of the distance between these openings on the sound reduction value of the system has been analyzed. After the measurements, materials, their sound absorption coefficients and the reverbation times of two rooms were calibrated in the simulation program accordingly and simulations were run in order to check if it would be possible to continue this research only with computer models. The results are compared and difference between the simulation and laboratory measruments are stated in this paper.

none - see english version

Noise control, natural ventilation, acoustics, sound insulation, simulation