Major tech MT948 Gebruiksaanwijzing - Pagina 8

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Major tech MT948 Gebruiksaanwijzing

Useful Equations and Conversions

Area equation for rectangular or square ducts
Width (W)
Area equation for circular ducts
Radius
Cubic equations
CFM (ft
CMM (m
must be converted to feet or meters before using the above formulae.
Unit of Measure Conversion Table
m/s
1 m/s
1 ft/min
0.00508
1 knot
0.5144
1 km/h
0.2778
1 MPH
0.4464
Height (H)
Area (A) = Width (W) x Height (H)
Area (A) =
Where
3
/min) = Air Velocity (ft/min) x Area (ft
3
/min) = Air Velocity (m/sec) x Area (m
NOTE: Measurements made in inches
ft/min
1
196.87
1
101.27
54.69
87.89
2
x r
2
= 3.14 and r
= radius x radius
knots
km/h
1.944
3.6
0.00987
0.01829
1
1.8519
0.54
1
0.8679
1.6071
8
2
)
2
) x 60
MPH
2.24
0.01138
1.1523
0.6222
1