×
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

Horizontal ammonia liquid vapor separators: which is the k?

Horizontal ammonia liquid vapor separators: which is the k?

Horizontal ammonia liquid vapor separators: which is the k?

(OP)
I've read many threads about the topic of the vapour-liquid separation. ? have to size a liquid vapour separator for ammonia flooded evaporator and I've used the charts of the handbook "Industrial Refrigeration" of W. Stoecker for drop diameters from 0.20 mm (0.008 in) to 0.38 mm (0.015 in)to get the separating velocities. I obtain a velocity from 0,45 (1.48 ft/s) to 1 m/s (3.28 ft/s).

To make a check I used the Souders-Brown equation with a k = 0.107 m/s(0.35 ft/s) I get a velocity higher.
I suppose the equation can be applied also to the horizontal separators and I found a value of k = 0.120 m/s (0.40 ft/s).

In these two cases I get a velocity of 1.27 m/s (4.17 ft/s) for k=0.107 and 1.42 m/s (4.66 ft/s) for k=0.120. Unfortunately the k coeficients I found are not correlated to the drop diameters so do not know if they're really valid.

My question is wether I can use this equation also for the horizontal separators and which is the proper coefficient I can use.
The separator will be mounted on a large size chiller and I cannot use a vertical one for height problem so I must reduce the dimensions as possible but which is the velocity limit that I have to consider?

Does anybody can give me an help?

many thanks in advance
   

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