×
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

Flow Accelerated Corrosion of Economizer Piping

Flow Accelerated Corrosion of Economizer Piping

Flow Accelerated Corrosion of Economizer Piping

(OP)
I'm looking for information concerning the failure of an economizer feedwater inlet line at Pleasant Prairie Power Plant in February 1995.  EYEC in particular seems to have information on this incident, based upon the following from an old post:

eyec (Industrial)      
1 Dec 03 7:56
there was a economizer feedwater inlet line that let go due to FAC in a Mid-west plant.  can't remember the name but i will see if i can find the article someone sent me and forward the info.

Any help would be appreciated.

RE: Flow Accelerated Corrosion of Economizer Piping

ThomF;
What exactly do you need to know about this failure? The FAC damage mechanism is well documented and is affected by pH, feedwater temperature and the chemical composition of the pipe (namely the chromium content). Yes, pipe geometry does play a role, however the real impact is the stability of the protective magnetite layer on the ID surface of the piping. If you chromium content in the pipe is in excess of 0.2 weight percent, the susceptibility to FAC will reduce by a factor of 20x.

RE: Flow Accelerated Corrosion of Economizer Piping

(OP)
I'm looking for the specific details related to this particular incident, including the particular chromium content of the pipe in question, its geometry, the feedwater chemistry used.  

I'm aware of the failure mechanism in general, but an also looking for more specific information.

ThomF

RE: Flow Accelerated Corrosion of Economizer Piping

Who do you know that belongs to EPRI?  They have printed a book on the subject.

= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
http://www.trent-tube.com/contact/Tech_Assist.cfm

RE: Flow Accelerated Corrosion of Economizer Piping

(OP)
I no longer have access to EPRI materials.  I'm not looking for a treatise on the subject -- just a short summary.

ThomF

RE: Flow Accelerated Corrosion of Economizer Piping

Does anyone have first hand knowledge about water side failures due to (FAC) Flow Accelerated Corrosion in recovery boiler economizers operationing in Pulp and Paper mills?????

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