×
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

lowering steam pressure to increase production

lowering steam pressure to increase production

lowering steam pressure to increase production

(OP)
Good day folks,

i have the following question:

nominal output 18 t/h @ 12 bar saturated steam
effective output 13 t/h @ 12 bar saturated steam (very old and bad maintained boiler)

Steam is reduced to 10 t/h 6 bar, 1 t/h 3 bar and 2 t/h 12 bar.

If i exchange the 12 bar steam with a thermooil unit, i may increase the production of 6 bar steam, is this correct ? I do not mean just the 2 t/h, but instead of pressureing up to 12 bar only to 6 bar, a higher yield should be makeable. Any guidelines on how to calculate this ?

thank you very much and best regards

Alex.

RE: lowering steam pressure to increase production

If the steam is used for heating, there is nothing to gain by producing at a lower pressure. Throttling steam is adiabatic; it does not change the heat content. You will not get more bang for your money this way. Also, your boiler is designed for 12 bars, not 6; The steam drum, nozzles, moisture separation and piping may not be adequate with the increased specific volume.

Using thermal fluid is a loaded proposition. The steam users must be examined for compatibility. Heat transfer is different with TF. TF is indicated when you need high temperatures and don't want to deal with the high pressure.

I am assuming you are using an oil fired boiler. If it is old, it is probably a conservative design and worth revamping. If it is badly maintained, chances are your new TF system will not be better cared for.

I hope this helps.

Providing more info on steam usage and existing equipment might be usefull

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