Honeywell SMV 3000 Manuale Utente
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SMV 3000 Transmitter User’s Manual
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Parameters
A’d................................................................................................................................... Area of orifice
A’u...................................................................................................................................... Area of pipe
C .................................................................................. Flow coefficient or orifice discharge coefficient
d1 ...................................................................................................................... Inside diameter of pipe
d2 ........................................................................... Orifice plate bore diameter at flowing temperature
do ................................................................................................................... Inside diameter of orifice
Ev................................................................................................................Velocity of approach factor
Fpv ............................................................................................................ Super compressibility factor
g ......................................................................................................................... Acceleration of gravity
Kq........................................................................... Scaling factor for volumetric flow in PV4 algorithm
Kw .................................................................................. Scaling factor for mass flow in PV4 algorithm
Nc......................................................................................................................Units conversion factor
P.............................................................................................................................................. Pressure
Pa.......................................................................................Measured static pressure in PV4 algorithm
Pc..................................................................................................Absolute critical pressure of the gas
Pd................................................................................................. Static pressure at downstream point
Pdp........................................................... Measured differential pressure in Pascals in PV4 algorithm
Pf....................................................................................................... Absolute pressure of flowing gas
Pr ............................................................................................................................. Reduced pressure
Pu......................................................................................................Static pressure at upstream point
Qh .......................................................................................... Volumetric rate of flow in PV4 algorithm
Qs ...................................................................................................................................... Rate of flow
R ...................................................................................................................................... Gas constant
T .......................................................................................................................... Absolute temperature
Ta............................................................................... Measure process temperature in PV4 algorithm
Tc ............................................................................................ Absolute critical temperature of the gas
Tf.................................................................................................. Absolute temperature of flowing gas
Tr.........................................................................................................................Reduced temperature
Tref............................................................... Absolute temperature of reference flow in PV4 algorithm
v ................................................................................................................................... Specific volume
Vd.................................................................................................... Fluid velocity at downstream point
Vu.........................................................................................................Fluid velocity at upstream point
Wh...................................................................................................Mass rate of flow in PV4 algorithm
Y..................................................................................................................................Expansion factor
Z .......................................................................................................................... Compressibility factor
A’u...................................................................................................................................... Area of pipe
C .................................................................................. Flow coefficient or orifice discharge coefficient
d1 ...................................................................................................................... Inside diameter of pipe
d2 ........................................................................... Orifice plate bore diameter at flowing temperature
do ................................................................................................................... Inside diameter of orifice
Ev................................................................................................................Velocity of approach factor
Fpv ............................................................................................................ Super compressibility factor
g ......................................................................................................................... Acceleration of gravity
Kq........................................................................... Scaling factor for volumetric flow in PV4 algorithm
Kw .................................................................................. Scaling factor for mass flow in PV4 algorithm
Nc......................................................................................................................Units conversion factor
P.............................................................................................................................................. Pressure
Pa.......................................................................................Measured static pressure in PV4 algorithm
Pc..................................................................................................Absolute critical pressure of the gas
Pd................................................................................................. Static pressure at downstream point
Pdp........................................................... Measured differential pressure in Pascals in PV4 algorithm
Pf....................................................................................................... Absolute pressure of flowing gas
Pr ............................................................................................................................. Reduced pressure
Pu......................................................................................................Static pressure at upstream point
Qh .......................................................................................... Volumetric rate of flow in PV4 algorithm
Qs ...................................................................................................................................... Rate of flow
R ...................................................................................................................................... Gas constant
T .......................................................................................................................... Absolute temperature
Ta............................................................................... Measure process temperature in PV4 algorithm
Tc ............................................................................................ Absolute critical temperature of the gas
Tf.................................................................................................. Absolute temperature of flowing gas
Tr.........................................................................................................................Reduced temperature
Tref............................................................... Absolute temperature of reference flow in PV4 algorithm
v ................................................................................................................................... Specific volume
Vd.................................................................................................... Fluid velocity at downstream point
Vu.........................................................................................................Fluid velocity at upstream point
Wh...................................................................................................Mass rate of flow in PV4 algorithm
Y..................................................................................................................................Expansion factor
Z .......................................................................................................................... Compressibility factor
γ (
gamma
)
........................................................................................................................... Fluid density
ρ ..............................................................................................................................................................
Density
ρ
act
..................................................................................................................
Actual density in PV4 algorithm
ρ
des
...............................................................................................................
Design density in PV4 algorithm
ρ
r ........................................................................................ Density of fluid under reference conditions