×
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

E. Glycol as an anti- freeze for ice water.
2

E. Glycol as an anti- freeze for ice water.

E. Glycol as an anti- freeze for ice water.

(OP)
hi friends,
we are commisioning a new refrigiration plant  to form ice water using ammonia as a refrigerant. we have chosen to use ethylene glycol  as an anti freeze. the ice water basin is 105m3. how much ethylene glycol  do i need  since i have never used it.  is ther a better alternative?can someone help.
thanks
Kipkosgei D
Chemical engineer

RE: E. Glycol as an anti- freeze for ice water.

2
Seroney:

I don't know your location, your regulations/codes, and what you are using the ice water for.  If there is going to be any possibility of contaminating any foods for human consumption you would be far wiser to employ Propylene Glycol (PG) -which I consider to be a better anti-freeze - which is approved for food-grade uses.

For figuring out what concentration of aqueous PG to employ in your application go to:

http://www.engineeringtoolbox.com/propylene-glycol-d_363.html

I’m not going to do the simple math for you and identify how much you need.  As a Chemical Engineer you should be more than qualified for that task.

I hope this helps.

RE: E. Glycol as an anti- freeze for ice water.

(OP)
hi montemayor,
am very gratefull for your help. actually am using the ice water  in drying of bakers yeast  in the dryers.  propylene glycol would be the best alternative since its food grade.

thanks
D. Kipkosgei.

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