×
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

Mixing steam flows

Mixing steam flows

Mixing steam flows

(OP)
I have two steam streams which I have to mix together:

Properties of these streams
1: 480 °F, pressure 145 psi
2: 630 °F, pressure 435 psi

I'm not familiar with steam mixing systems/equipment. What is the best way to mix those streams? Could you tell me some sources (books, websites) from where I can get information?

Thank you!

RE: Mixing steam flows

Is there a resulting back pressure of interest ?

RE: Mixing steam flows

(OP)
Yes there is. It should be about 175 psi. The resulting temperature can be anything. The flow rates of the streams are almost equal.

RE: Mixing steam flows

Apparently a thermocompressing ejector would bring up the LP steam to the MP level with a motive HP steam mass ratio to LP steam of less than 1:1. If you prefer to use the whole mass of HP steam, then you simply add the rest thru a reducing valve into the MP line.

Look for a graph in Perry VI or Perry VII in the section of compressors to estimate the amount of motive HP steam needed to do the job. Use absolute, not gage pressures, in your calculations.

The internet can show you various manufacturers of thermocompressors.

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