Leak Rate Calculator Advanced

Atmospheric Leak Flow Rate Calculator with Result Unit Conversion


Identification Data

Tagname
Site
Area
Notes

Fluid Data

Fluid
State of matter
Density
Kg/m3
Molecular Weight g
Operating Temperature
C
Operating Pressure
bar
Atmospheric Pressure
bar
Dynamic Viscosity
cP
Ratio of Sp.Heats N/A

Pipe Data

Pipe Diameter
mm
Orifice Diameter
mm
Leakage Time
seg

Common intermediate results for liquids and gases

Pressure Drop Discharge Coefficient -
Velocity in pipe Velocity in orifice
Reynolds Number N/A Reynolds Flow Regime N/A
Beta Ratio - Volumetric Flow
Mass Flow Mass Flow (sec)

Intermediate results for gases only

Critical P Ratio N/A Critical P Out N/A
Expansion Factor N/A Molar Vol m3/Kmol
Match Number N/A Match Flow Regime N/A

Calculation Results

Leakage Quantity

How the Leak Rate Calculator Advanced works?

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NEW FEATURE - Result Unit Conversion: This advanced version allows you to select output units for all calculation results in real-time. After clicking Calculate!, you can change the units for pressure drop, velocity, flow rates, and mass using the dropdown selectors next to each result field. The values will automatically convert to your selected units without recalculating.
All of our calculators work in a similar way. First you will find a block of information called "Identification Data". In this block we ask you to indicate the Tag, the Plant where the instrument is located and the Area. You also have the possibility to add some notes. This information will be attached to the report if you wish to provide it. It is not necessary to perform the calculation.
The next block of information is called "Fluid Data". In this block we ask you to indicate the the name of your fluid, state of matter, and other properties of your fluid. If you select gas, density is calculated based on the Pressure, Molecular Weight and Temperature properties.
The last input block is called "Pipe Data". Here we will need to provide the Pipe Diameter and the Oririce Diameter (usually estimated) and the amount of time elapsed since the first leakage.
Once everything is set you must click on Calculate! button. Then, all the resulting cells will be calculated. You can press this button until your results are inline with your expectations. NEW: You can now change the output units for each result using the unit dropdowns. Once everything is correct you can export your work to an ISA S20 format spreadsheet containing all your parameters and results. To be able to obtain this file you must click on Download button.
We hope you enjoy using this advanced calculator.