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!

*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.

Jobs

High Pump Nozzle Loads & Use Of Stiffness Coeff. on CNode's On Anchors

High Pump Nozzle Loads & Use Of Stiffness Coeff. on CNode's On Anchors

(OP)
I am currently running a model at quite low temps (45'C), but still high nozzle loads are experienced due to the short lines (obviously not a lot of flexibility in the system with lines between tanks and pumps).

It has been mentioned that there are some flange/gasket distortion that takes place and thus if a stiffness coeff. is used on the anchor it will definitely improve loads/moments.

My question thus, what kind of stiffness coeff. can one use for typical 1.5mm thick PTFE non-metal flat gaskets?  And can one make use of CNodes on all rigids where the gaskets will be situated in order to give more flexibility to the system.

Any comments welcome!

Regards,

E

RE: High Pump Nozzle Loads & Use Of Stiffness Coeff. on CNode's On Anchors

I have not heard something like this until now.

RE: High Pump Nozzle Loads & Use Of Stiffness Coeff. on CNode's On Anchors

The best solution would be to model in the Tank flexibility.  Just select NOZZLE in your input and enter the tank parameters.

RE: High Pump Nozzle Loads & Use Of Stiffness Coeff. on CNode's On Anchors

Introducing nozzle flexibility or inputting flexible anchor at the nozzle will reduce nozzle loads.
However if your nozzle loads are still high then you might need to modify the pipe routing to give addititional flexibility to the system and also look at your pipe support positioning and selection (type of supports used). Another option is to install expansion joint at the nozzle if your system run at low pressure.

Good luck and have fun modelling  

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


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close