This calculation is used to calculate flow rate using a choice of algorithms commonly used by distributed control systems (DCS).
Honeywell – Advanced Process Manager Control Functions and Algorithms – AP09-600
Kelton calculation reference C195
FLOCALC calculation reference F052
KIMS calculation reference K195
Select option based on desired flow parameter.
- Linear Value
- % Linear
- % Square root
Select option based on whether the uncompensated flowrate is a linear or square rooted term.
- A: Liquids
- B: Gasses and Vapours
- C: Gasses and Vapours with Specific Gravity
- D: Volumetric Flow of Gasses and Vapours
- E: Steam
Select option based on properties of the measured fluid.
Flow compensation term
The flow compensation term is calculated by:
|A, B, C, D, E||=||Refer to the calculation method for which the formula is employed|
|RG||=||Design Specific gravity|
|RX||=||Design Steam Compressibility|
|Q||=||Steam Quality Factor|
|RQ||=||Design Steam Quality Factor|
Note: If input method is linear square root is not necessary.
Compensated flow rate
The flow rate is calculated by:
|C1||=||1st correction constant|
|C2||=||2nd correction constant|
|F||=||Uncompensated flow input|
|COMPTERM||=||Flow compensation term|