Adiabatic Bulk Modulus of Hydrocarbons

The bulk modulus for a liquid is defined as the ratio of a change in pressure to the relative change in volume. Common uses for the bulk modulus include:

• Calculation of the speed of sound for liquids, which useful for applications where pressure waves are important like dynamics modelling and surge analysis.
• Determination of the lag in response time for hydraulic systems.

𝐾_𝑠 − Adiabatic Bulk Modulus

𝑃 − Pressure (psig)

𝑇 − Temperature (°𝑅) = (℉ + 460)

𝐴𝑃𝐼 − API gravity of liquid @ 60℉

𝐴 = 1.286×10⁶

𝐵 = 13.55

𝐶 = 4.122×10⁴

𝐷 = 4.53×10³

𝐸 = 10.59

𝐹 = 3.228

Input Parameters

1. To create a new case, click the “Add Case” button
2. Select the Adiabatic Bulk Modulus of Hydrocarbons application from the Miscellaneous module list.
3. Enter Case Name, Location, Date and any necessary notes.
4. Fill out all required fields.
5. Make sure the values you are inputting are in the correct units.
6. Click the CALCULATE button.

• Pressure (psig)
• Specific Gravity
• Product Type

Outputs/Reports

1. View the results.
2. If an input parameter needs to be edited be sure to hit the CALCULATE button after the change.
3. To SAVE, fill out all required case details then click the SAVE button.
4. To rename an existing file, click the SAVE As button. Provide all case info then click SAVE.
5. To generate a REPORT, click the REPORT button.
6. The user may export the Case/Report by clicking the Export to Excel/PowerPoint icon.
7. To delete a case, click the DELETE icon near the top of the widget.

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