Reciprocating Pump - Acceleration Head

Acceleration head is the energy required to change the velocity of the liquid in the system from an at rest, or zero condition, to some non-zero value. Low pressure situations occurring on the inlet side of the pump can have an adverse effect on fluid movement. If the inlet pressure for the pump drops too low, it can cause performance issues, and damage the pump if internal cavitation occurs.

𝐻_𝑎 − Acceleration Head [gpm]

𝐿 − Length of Suction Line [ft]

𝑣_𝑎 − Average Liquid Velocity in Suction Line [,ft-sec.]

𝐶 − Emperical Constant for Type of Pump

𝐾 − Factor Representing Relative Compressibility

𝑔 − Gravitational Constant (32.2 [ft/sec²])

   

Input Parameters

1. To create a new case, click the “Add Case” button
2. Select the Pump Specific Speed application from the Pipeline Pumps module.
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

• Pump Type (C – Empirical Constant for Type of Pump)
• Liquid Type (K – Factor Related to Liquid Compressibility)
• Length of Suction Line [ft]
• Average Liquid Velocity [ft/sec]
• Pump Speed [rpm]

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.

• Acceleration Head [ft]