×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Positive Displacement Twin Geared Pump

Positive Displacement Twin Geared Pump

Positive Displacement Twin Geared Pump

(OP)
Hey,
The Suction energy equation is set for the Centrifugal pumps.  But does anyone know the proper way to calculate the suction energy of a pump that has twin screws/gears?  The suction energy is actually the liquid momentum in the imperllor but the way that the pump is designed there is no real impellor just two twin screws.  API has standards of NPSHa divided by the NPSHr, (The Ratio), for High suction energy, Low suction energy and Very high suction energy pumps.  So I would first need to be able to calculate the suction energy for this type of pump.  Does anyone know of any good leads?  Thanks for all of the help.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources