Determination of Sound Transfer Coefficient of Boron Added Waste Cellulosic and Paper Mixture Panels
Küçük Resim Yok
Tarih
2010
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ACADEMIC JOURNALS
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
When the studies about the effects of noise on the human health were investigated, it was determined that the noise has physiological, pathological, psychological and psycho-social results and affects sense organs, circulatory, respiration, digestion, excretory and nervous systems in terms of physiology. In this research, a sound insulation study was carried out in order to minimize the negative effects of sound on the people who work in enclosed spaces. For sound insulation, two unreflecting rooms were constructed by using boron-added cellulosic and pulverized paper mixture. However, alpha values (sound transfer coefficient) for the measured absolute values and the NRCs (Noise Reduction Coefficient) for 250, 500, 1000, 2000, 4000, 8000 Hz frequencies which are the most sensitive ones for human ear were calculated. The material used in the study was so efficient for high frequencies. The NRC and alpha value were obtained for clean paper mixture as 0.46 and 0.38, respectively and for waste paper mixture as 0.34 and 0.38, respectively with 3 cm thickness; for clean paper mixture as 0.55 and 0.81, respectively and for waste paper mixture as 0.31 and 0.72, respectively with 5 cm thickness. The mixture with 5 cm thickness can be easily used inside the walls of critical utilization areas like office, house, hospital, etc. that exist near and/or inside the traffic, bazaar, park, children park areas.
Açıklama
Anahtar Kelimeler
Sound, Noise Reduction, Insulation, Indoor
Kaynak
Scientific Research and Essays
WoS Q Değeri
Q3
Scopus Q Değeri
N/A
Cilt
5
Sayı
12
Künye
Kalıpçı, E., Ilgun, A., Çöğürcü, M. T., Özdemir, C., Şahinkaya, S., (2010). Determination of Sound Transfer Coefficient of Boron Added Waste Cellulosic and Paper Mixture Panels. Scientific Research and Essays, 5(12), 1530-1535.
