Calculation of Predictable of noise level made by operating machine：Single source

Calculation of Predictable of noise level made by operating machine：Single source

1Width of roomw1：(m),w2：(m)-
2Size of partitiona：(m),b：(m)Width：a,Height：b.
3Average sound absorption coefficientα1：,α2：0＜α＜1
4Distancer1：(m)r1≦(w1-1)
5Power level of sound source machine：Lw(dB)-
6Directivity coefficient：Q1,2,4 or 8. If source will be set on the floor,Q=2.
7Transmission loss of partition：TL(dB)-
8GraphPlot Input Data： , Figure：
9Number of gridlines of Graph x-axis, y-axis -
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Keyword･Reference･Remarks･History

LaTex

Keyword

Predictable of noise level,operating machine,Single source,Average sound absorption coefficient,Power level of sound source machine,Directivity coefficient,Transmission loss of partition：TL

Reference

[1]：社団法人全国都市清掃会議：『ごみ焼却施設環境アセスメントマニュアル』,1986,pp.117-126.
[2]：環境省 大臣官房 廃棄物・リサイクル対策部：『廃棄物処理施設生活環境影響調査指針 平成18年9月』,pp資3-6-資3-10.
[3]:Website of Dr.Apple L.S.Chan：Transmission of Sound in Open Space

Remarks

・Noise level：L1in,L1out
・Average sound absorption coefficient：α
・Power level of sound source machine：Lw
・Directivity coefficient：Q
・Transmission loss of partition：TL
・Making Equation Image is powered by CODECOGS

History

・2011/01/13：Upload

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