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TECHNICAL ACCOUNTS
V= Air Speed (m/s) Q = V x A Equivalent Round Duct Equation:
A= Duct Section (m²) V = Q / A De = 1,30{(axb)0,625 /(a+b)0,25}
Q= Air Flowrate (m³/h) 
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KARAL® MACHINE & METAL TECHNOLOGY | ||||||||||||||||||||||||
| ROUND AIR DUCTS WITH SPIRAL
CLAMP TECHNICAL ACCOUNTS |
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V= Air Speed (m/s) Q = V x A Equivalent Round Duct Equation:
A= Duct Section (m²) V = Q / A De = 1,30{(axb)0,625 /(a+b)0,25}
Q= Air Flowrate (m³/h) |
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| * Written Source; ASHRAE Basic Manual | |||||||||||||||||||||||||
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