EcoStruxure™ Control Expert - Flow Calculation Library
AGA Standard Gas Flow Calculation Library
Published by
Schneider Electric
EcoStruxure™ Control Expert - Flow Calculation Library
Published by
Schneider Electric
Features
Library Content
EcoStruxure Control Expert - Flow Control Library consist of Function blocks for below 3 family
AGA
API
Flow Calculation Extensions
![Library Content]()
AGA Family Block List
-
- AGA3: Orifice Meter Gas Calculation
- AGA5: Calculation of Gross Heating Value, Relative Density and Compressibility Factor for Natural Gas Mixtures
- AGA7: Turbine Meter Gas Calculation
- AGA8: Compressibility Factor Calculation of Natural Gas and Related Hydrocarbon Gases
- AGA9: Ultrasonic Meter Gas Calculation
- AGA11: Coriolis Meter Gas Calculation
- VCONE: V-Cone Meter Gas Volumes
API Family Block List
-
- API_C11_1: Calculations for Generalized Crude Oils, Refined Products, and Lubricating Oils
- API_C11_2: Calculations for NGL and LPG
- API2540CTL: Calculations Temperature Correction Factor for Liquids
- API2540CPL: Calculations Pressure Correction Factor for Liquids
Flow Calculation Extensions Family Block List
-
- TOTALS: Accumulation of Instantanious Flow Rate Input
- TOTALS_UDA: Accumulation of Instantanious Flow Rate
- MULTIPLIER: Converter for Meter Input
AGA#3 Orifice Meter Gas Calculation Function
The Orifice Meter Gas Calculation Function object
Uses the AGA Report #3 1995 standard
This function calculates gas volumes using an orifice plate along with input meters for temperature, pressure and differential pressure
![AGA#3 Orifice Meter Gas Calculation Function]()
AGA #7 Turbine Meter Gas Volume Calculation
This function is used to calculate Turbine Meter Gas Volumes for Pulse, Frequency and Analog Inputs using the AGA Report #7 2002 standard.
![AGA #7 Turbine Meter Gas Volume Calculation]()
AGA #8 Gas Compressibility Factor Calculation Function
AGA #8: Calculates the Compressibility Factor of Natural Gas and Related Hydrocarbon Gases - 1994 Detailed Method
The compressibility factors are ZFLOW, ZBASE, DFLOW, and DBASE and are calculated based on the "Gas Analysis" data entered into the "ANALYSIS" input data structure of the AGA8 EFB
The AGA8 EFB provides data to AGA3 EFB in order to adjust the AGA3 calculation to account for compressibility of the gas being measured
![AGA #8 Gas Compressibility Factor Calculation Function]()
TOTALS EFB for Totalization of Instantaneous Flow Values
Function block is used to totalize or accumulate the instantaneous flowing volume provided by AGA3 and AGA7. This can be used to totalize other process values as well, i.e. not limited to use with AGA3 and AGA7. The input value can be in units/hour or units/day and the value will be totalized over time
There are various types of outputs, these are:
running total
running total (with reset)
current day volume
previous day volume
![TOTALS EFB for Totalization of Instantaneous Flow Values]()
Library Content
EcoStruxure Control Expert - Flow Control Library consist of Function blocks for below 3 family
AGA
API
Flow Calculation Extensions
AGA Family Block List
-
- AGA3: Orifice Meter Gas Calculation
- AGA5: Calculation of Gross Heating Value, Relative Density and Compressibility Factor for Natural Gas Mixtures
- AGA7: Turbine Meter Gas Calculation
- AGA8: Compressibility Factor Calculation of Natural Gas and Related Hydrocarbon Gases
- AGA9: Ultrasonic Meter Gas Calculation
- AGA11: Coriolis Meter Gas Calculation
- VCONE: V-Cone Meter Gas Volumes
API Family Block List
-
- API_C11_1: Calculations for Generalized Crude Oils, Refined Products, and Lubricating Oils
- API_C11_2: Calculations for NGL and LPG
- API2540CTL: Calculations Temperature Correction Factor for Liquids
- API2540CPL: Calculations Pressure Correction Factor for Liquids
Flow Calculation Extensions Family Block List
-
- TOTALS: Accumulation of Instantanious Flow Rate Input
- TOTALS_UDA: Accumulation of Instantanious Flow Rate
- MULTIPLIER: Converter for Meter Input
AGA#3 Orifice Meter Gas Calculation Function
The Orifice Meter Gas Calculation Function object
Uses the AGA Report #3 1995 standard
This function calculates gas volumes using an orifice plate along with input meters for temperature, pressure and differential pressure
AGA #7 Turbine Meter Gas Volume Calculation
This function is used to calculate Turbine Meter Gas Volumes for Pulse, Frequency and Analog Inputs using the AGA Report #7 2002 standard.
AGA #8 Gas Compressibility Factor Calculation Function
AGA #8: Calculates the Compressibility Factor of Natural Gas and Related Hydrocarbon Gases - 1994 Detailed Method
The compressibility factors are ZFLOW, ZBASE, DFLOW, and DBASE and are calculated based on the "Gas Analysis" data entered into the "ANALYSIS" input data structure of the AGA8 EFB
The AGA8 EFB provides data to AGA3 EFB in order to adjust the AGA3 calculation to account for compressibility of the gas being measured
TOTALS EFB for Totalization of Instantaneous Flow Values
Function block is used to totalize or accumulate the instantaneous flowing volume provided by AGA3 and AGA7. This can be used to totalize other process values as well, i.e. not limited to use with AGA3 and AGA7. The input value can be in units/hour or units/day and the value will be totalized over time
There are various types of outputs, these are:
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