Phenolic composite duct middle tier for phenolic foam, both inside and outside layer for embossing aluminum foil.
| wind speed
Project |
4 |
6 | 8 | 10 | 12 | 14 | 16 |
18 |
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| Friction resistance per meter(Pa/m) |
1.00 |
2.20 | 3.67 | 5.67 | 8.08 | 11.02 | 14.27 |
18.05 |
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| Coefficient of friction resistance |
0.0223 |
0.0217 | 0.0213 | 0.0210 | 0.0208 | 0.0208 | 0.0206 |
0.0206 |
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| Static pressure of inside duct(Pa) |
medium voltage system
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|
500 |
800 | 1000 | 1200 |
1500 |
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| Qa(m3/m2.h) | Standard Value |
2.00 |
2.71 | 3.14 | 3.53 |
4.08 |
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| Test Value |
0.57 |
0.87 | 1.05 | 1.24 |
1.51 |
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| Pa (Ps) | Standard Value |
500 |
800 | 1000 | 1200 |
1500 |
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| Test Value |
523 |
812 | 1023 | 1218 |
1522 |
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| Deflection of wall | Standard Value |
– |
– | – | – |
– |
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| Test Value |
0.11 |
0.18 | 0.27 | 0.39 |
0.75 |
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