×
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

Equivalent Fluid Pressure Due to Fertilizer

Equivalent Fluid Pressure Due to Fertilizer

Equivalent Fluid Pressure Due to Fertilizer

(OP)
Have a project involving fertilizer storage bins.  Having trouble making my client's idea work...I know, it is backward anyway.  But he has a bunch of material on-hand that he ordered prior to getting the building engineered.  Anyway, this project is a rebuild of a building that burned.  What is going back up (on the surface) appears to be MUCH better than what was there.  The problem I'm having is understanding how the other building didn't have major issues.  The bins were separated by walls comprised of various sizes of wood poles (5" to 8").  They were spaced at 5 feet on center and connected with tongue and groove decking (full-height).  The fertilizer can reach up about 9 feet on the poles (fertilizer is dumped in from roof - so there would also be some slope at the top).  The tallest poles are around 20 feet tall.  My calcs show that those poles would have been overstressed by an inordinate amount.  Any thoughts on what I should use for an EFP?  I used 30 pcf.

RE: Equivalent Fluid Pressure Due to Fertilizer

You might look at ASABE EP545, "Loads exerted by free flowing grain". ASABE may have other more appropriate references that I am not familar with too.

RE: Equivalent Fluid Pressure Due to Fertilizer

Is it because the fertilizer is dry?

RE: Equivalent Fluid Pressure Due to Fertilizer

surely you can get the bulk density and measure the angle of repose of these prills.

Wiki gives the bulk density of ammonium nitrate prills as: "bulk density of approximately 840 kg/m3."

Michael.
Timing has a lot to do with the outcome of a rain dance.

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