Prediction of Noise Transmission Loss and Acoustic Comfort Assessment of a Ventilated Window using Statistical Energy Analysis

Document Type: Original Article

Authors

Department of Mechanical and Aerospace Engineering, Shiraz University of Technology, Shiraz, Iran

Abstract

In this paper, a novel analytical method was developed based on statistical energy analysis framework to evaluate sound transmission loss through ventilated windows. The proposed method was compared to numerical and analytical models available in the literature. Results showed the success and advantage of the proposed model in predicting the acoustic performance of the ventilated window and the proposed method proved itself as a low-cost and high-accurate method. Considering the slit-like effect of the inlet and outlet of the ventilated window and channel attenuation is the distinct feature of the proposed method compared to the existing analytical models. This paper also discussed the effectiveness of the ventilated window in the provision of indoor acoustic comfort according to the different types of the outdoor traffic noise spectra and sound transmission loss. The results showed the acceptance of the indoor noise level made by the ventilated window. To recognize how the effective factors improve the acoustic performance of the ventilated window, the effect of window aspect ratio, channel thickness and opening size on Sound Transmission Class (STC) were studied. The results revealed that the ventilated window with higher aspect ratio and wider airflow channel has a higher STC while widening the opening size reduces the sound insulation.

Keywords


1.     Hossain, M.U., Meng, L., Farzana, S., Thengolose, A. L., ''Estimation and prediction of residential building energy consumption in rural areas of Chongqing''. International Journal of Engineering Transaction C: Aspects, Vol. 26, (2013), 955–962.

2.     Erell,E., Etzion,Y., Carlstrom,N., Sandberg, M., Molina, J., Maestree, I., Maldonado, E., Leal, V., Gutschker ,O., ''‘SOLVENT’: Development of a reversible solar-screen glazing system''. Energy and Buildings, Vol. 36, (2004), 467–480.

3.     Dhassa,AD., Natarajana, E., Lakshmi, P.,''An investigation of temperature effects on solar photovoltaic cells and modules''. International Journal of Engineering Transaction B: Applications, Vol. 27, (2014), 1713–1722.

4.     Kerry,G., Ford, RD.,''The field performance of partially open dual glazing''. Applied Acoustics, Vol. 7, (1974), 213–227.

5.     Kang, J., Brocklesby, MW.,''Feasibility of applying micro-perforated absorbers in acoustic window systems''. Applied Acoustics, Vol. 66, (2005), 669–689.

6.     Tong, Y.G., Tang, S.K.,''Plenum window insertion loss in the presence of a line source — A scale model study'' The Journal of the Acoustical Society of America, Vol. 133, No. 3 (2013): 1458-1467.

7.     Yu, X., Lau, S.-K.K., Cheng, L., Fangsen, C.,''A numerical investigation on the sound insulation of ventilation windows''. Elsevier Ltd, Applied Acoustics, Vol. 117, (2017), 113–121.

8.     Bajraktari, E., Lechleitner, J., Mahdavi, A.,''Estimating the sound insulation of double facades with openings for natural ventilation'', Energy Procedia, Vol. 78, (2015), 140–145.

9.     Craik, RJM., Smith, S.,''Non-resonant sound transmission through lightweight double walls using statistical energy analysis''. Applied Acoustics, Vol. 64, No. 3 (2003), 325-341.

10.   Wang, T., Li, S., Rajaram, S., Nutt, S.,''Predicting the Sound Transmission Loss of Sandwich Panels by Statistical Energy Analysis Approach''. Journal of Vibration and Acoustics, Vol. 132, (2010), 011004.

11.   Price, AJ., Crocker, MJ.,''Sound Transmission through Double Panels Using Statistical Energy Analysis''. The Journal of the Acoustical Society of America, Vol. 47, (1970), 683–693.

12.   Heckl, M., Lewit, M.,''Statistical Energy Analysis as a Tool for Quantifying Sound and Vibration Transmission Paths''. Philosophical Transactions: Physical Sciences and Engineering, Vol. 346, (1994), 449–464.

13.   Bies, DA., Hamid, S.,''In situ determination of loss and coupling loss factors by the power injection method''. Journal of Sound and Vibration, Vol. 70, (1980), 187–204.

14.   Beranek, LL., Acoustics. the American Institute of Physics for the Acoustical Society of America, (1986).

15.   Barron, RF., Industrial Noise Control and Acoustics. Industrial Noise Control and Acoustics, (2003). Epub ahead of print 2003. DOI: 10.1201/9780203910085.

16.   Cremer, L., Heckl, M., Ungar, EE., Structure-borne sound. Second. Berlin: Springer Verlag, (1988).

17.   Maidanik, G.,''Response of Ribbed Panels to Reverberant Acoustic Fields''. Journal of Acoustic Society of America, Vol. 34, (1962), 809–826.

18.   Fahy, F.,''Transmission of Sound through Partitions''. Sound and Structural Vibration, (1985), 143–215.

19.   Gomperts, M. C., Kihlman, T.,''The Sound Transmission Loss of Circular and Slit-Shaped Apertures in Walls''. Acta Acustica united with Acustica, Vol. 18, (1967), 144–150.

20.   Howell, JR.,''A Catalog of Radiation Heat Transfer Configuration Factors'', www.thermalradiation.net/ indexCat. html (accessed 14 September 2018).

21.   Søndergaard, LS., Olesen, HS.,''Investigation of sound insulation for a Supply Air Window''. Forum Acusticum 2011, (2014), 1411–1416.

22.   Sandberg, U., Kropp, W., Larsson, K.,''The Multi-Coincidence Peak around 1000 Hz in Tyre / Road Noise Spectra''. Euronoise Naples 2003, Vol. 89, (2003),1–8.

23.   Buratti, C., Moretti, E.,''Traffic Noise Pollution : Spectra Characteristics and Windows Sound Insulation in Laboratory and Field Measurements''. Journal of Environmental Science and Engineering, Vol. 4, (2010), 28–36.

24.   Mesihovic, M., Rindel, JH., Milford, I.,''The need for updated traffic noise spectra , used for calculation of sound insulation of windows and facades''. (2016), 3890–3897.

25.   John, L., Davy.,''Insulating Buildings Against Transportation Noise''. In: transportation noise and vibration : the new millennium. Gold Coast, Australia, Transportation Noise and Vibration : the new millennium, (2004).

26.   Federal Aviation Administration,''Review and Evaluation of Aircraft Noise Spectra used to Estimate Noise Level Reduction for Airport Sound Insulation Programs based on the Loudspeaker Test Method''. (2016).

27.   ANSI Standard S12.2,''Criteria for  Evaluating Room Noise'', (2008).

28.   Ryherd ,EE., Wang, LM.,''Implications of human performance and perception under tonal noise conditions on indoor noise criteria''. The Journal of the Acoustical Society of America, Vol. 124, (2008), 218–226.