Air

Fluid properties
		Inlet		Outlet
Mass flow					kg/s kg/h t/h lb/s lb/h
Nominal volumetric flow					Nm3/s Nft3/s
Pressure					Pa(g) psi(g)
Temperature					C K F
Moisture					kg H2O/kg air
Volumetric flow					m3/s ft3/s
Velocity					m/s ft/s
Density					kg/m3 lb/ft3
Kinematic viscosity					m2/s ft2/s
Specific heat					kJ/kg/C Btu/lb/F
Check
Duct parameters
		Inlet		Outlet
Elevation					m ft
Duct width					mm inch
Duct height					mm inch
Duct length					m ft
Heat loss					W/m Btu/h/ft
Resistance elements
Surface roughness					mm inch
Inflow, pcs				K =
Outflow, pcs				K =
Enlargement, pcs				K =
Contraction, pcs				K =
90° elbow, pcs				K =
45° elbow, pcs				K =
T-branch, pcs				K =
Y-joint (45°), pcs				K =
Damper, pcs				K =
Other equipment					Pa psi