ORIFICE DIMENSIONS
Supply pressure pS
10
6
Pa
Restrictor pressure pR
10
6
Pa
Ambient pressure pA
10
6
Pa
Flow rate Q
10
-3
liter/min
Temperature T
K
Viscosity η
10
-6
Pa·s
Gas constant R
m
2
/s
2
K
Density ρ
kg/m
3
Specific heat κ
Coefficient of discharge Cd
Number of orifices ni
Total cross section area A
10
-6
m
2
Diameter orifice d
10
-3
m
Flow rate Q:
expressed in liter per minute at normal pressure pA
Temperature T:
K = ºC+273
Gas properties:
η, R, ρ and κ are listed in Table 14.1 page 415.
Coefficient of discharge Cd:
eq.14.2 page 416 where Cd(d/l) is specified.
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