Thermodynamics? Boiling point of NH3

Click For Summary
SUMMARY

The boiling point of ammonia (NH3) varies with pressure, and understanding this relationship is crucial for ammonia refrigeration systems. A phase diagram is an essential tool for visualizing the states of ammonia (solid, liquid, vapor) at different temperatures and pressures. Users can refer to specific resources, such as the provided links to phase diagrams and technical reports, to find accurate boiling point data. The discussion emphasizes the importance of instrumentation for measuring pressure and temperature in these systems.

PREREQUISITES
  • Understanding of phase diagrams and their components
  • Familiarity with ammonia refrigeration systems
  • Basic knowledge of thermodynamic principles
  • Ability to interpret pressure and temperature data
NEXT STEPS
  • Research "ammonia phase diagram" for detailed visual representations
  • Explore "thermodynamic properties of ammonia" for comprehensive data
  • Learn about "ammonia refrigeration system design" for practical applications
  • Investigate "pressure-temperature relationship of NH3" for specific calculations
USEFUL FOR

Refrigeration engineers, thermodynamics students, and professionals working with ammonia systems will benefit from this discussion.

Stevettt
Messages
1
Reaction score
0
Thermodynamics?? Boiling point of NH3

I hope I'm in the right place here, I'm no scientist, just a guy with a question. How can I find out the boiling point of ammonia at various pressures. :confused: I am dealing with an ammonia refrigeration system and trying to figure out where the ammonia stream is liquid and where it's gas. We have instrumentation telling us the pressures and temps at various points in the system, so if I only had a chart...
Anyway, any tips on where to look or the best way to Google this thing would be appreciated.
 
Science news on Phys.org
I would suggest to do a search for a "phase diagram." This will be a 2-D diagram with lines on it and usually at least three labeled regions (solid, liquid, vapor/gas). The axes of the diagram are Temperature and Pressure. However, in my 5 min. search on the internet, I could not find anything useful. I will persist for a bit longer, and, if I do find something, I will edit this post to include a link.

Maybe:
http://www.isis.rl.ac.uk/ISIS99/reports/9858B.PDF
http://bowfell.geol.ucl.ac.uk/~lidunka/papers/20.pdf
 
Last edited by a moderator:

Similar threads

Graduate Can Raoult's Law Determine Boiling Points of Fuel Oil?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Understanding Boiling Point Elevation: Real Gas Law and Its Impact on Molecules
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Dew point more important than boiling point
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Effects on Engine Overheating and Pressure Dynamics
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Ammonia Gas: Vapor Pressure > Atmospheric Pressure
  • · Replies 5 ·
Replies
5
Views
7K
Undergrad Empirical temperature scales using different thermometers
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Understanding the Boiling Point: Thermodynamic Proof
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Minimization of thermodynamic equilibrium
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Thermodynamic functions and state variables
  • · Replies 8 ·
Replies
8
Views
1K
Undergrad Confusion about the interpretation of specific volume
  • · Replies 18 ·
Replies
18
Views
4K