×
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

Ammonia Absorption Refrigeration

Ammonia Absorption Refrigeration

Ammonia Absorption Refrigeration

(OP)
In heating a 30% aqua-ammonia solution from ambient to 200 deg C @400psi, would the RATE of ammonai gas production ( Vol/time) be constant, or would it vary as the temperature rises ???.

RE: Ammonia Absorption Refrigeration

The NH3 vapor pressure difference between the liquid phase and the vapor phase is what drives the diffusion.  If you are designing an ammonia generator/ dephegmator, wouldn't you say that the operation temperature is constant? Maybe you are thinking about startup conditions.

Since the vapor pressures vary along with temperatures, it would be difficult to say that the diffusion rate would be constant.

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