Thermo Scientific DensityPRO NAI Series, Руководство пользователя

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Density Calculation
Temperature Compensated Density
C-32 DensityPRO User Manual Thermo Scientific
– Percent by volume solute (Reference
Units for Measurement #1 )
– Percent by volume solvent
Units for Measurement #1 )
– Temperature – The temperature measured by the temperature input.
– Flow Velocity – The velocity of the solution calculated using Equation 22 with the
terms defined as follows.
– Qv = Volumetric flow rate of the solution in cubic centimeters per second;
measured by the gauge using an analog input.
– L = Inside diameter of the pipe in centimeters. V = Flow Velocity of the emulsion.
Temperature
Compensated
Density
Temperature
Compensated
Calculation
The temperature compensation formula will compensate single phase, the carrier for
slurry, solvent for solution, or fluid 1 for emulsion. Use the formula a second time for
the solid, solute or fluid 2.
– ∆
ρ
– Change in density of carrier/solvent/fluid 1 or bulk density with
temperature.
– A, B, C – Coefficients of the single phase, carrier, solvent, or fluid one
characterization polynomial.
– ∆T – Difference in process temperature and reference temperature.
– ∆T = TProcess – TReference
– TProcess – The temperature of the material in the process.
– TReference – The temperature of the material the density is corrected to.
–
ρ
Tref =
ρ
Bulk + ∆
ρ
–
ρ
Tref – The density of the material at the reference temperature.
–
ρ
Bulk – The density of the material measured in the process at the process
temperature.
∆ρ A
∗
∆T B
∗
∆T2 C
∗
∆T3
Equation 35