| 目次へ角ダクト合流_隅切り直付け�B→�A |
空気調和衛生工学便覧 |
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合流損失係数 f |
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f |
0.34 |
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3 |
2 |
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辺長a |
50 |
100 |
mm |
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辺長b |
50 |
100 |
mm |
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面積A=a*b |
0.0025 |
0.01 |
m2 |
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Q3/Q2 |
0.4 |
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v3/v2 |
1.33 |
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合流による圧力損失 hf |
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hf=f*v2^2*ρ/2 |
14.22 |
Pa/個 |
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流速 v |
13.333 |
8.333 |
m/s |
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流量 Q |
2.00 |
5 |
m3/min |
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気体密度 ρ |
1.205 |
kg/m3 |
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v2(m/s) |
Q3/Q2 |
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0.10 |
0.20 |
0.30 |
0.40 |
0.50 |
0.60 |
0.70 |
0.80 |
0.90 |
1.00 |
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< 6 |
-0.83 |
-0.68 |
-0.30 |
0.28 |
0.55 |
1.03 |
1.50 |
1.93 |
2.50 |
3.03 |
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> 6 |
-0.72 |
-0.52 |
-0.23 |
0.34 |
0.76 |
1.14 |
1.83 |
2.01 |
2.90 |
3.63 |
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3.159 |
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