How can I calculate relative humidity in helium?

Click For Summary
SUMMARY

This discussion focuses on calculating relative humidity in helium using dew point temperature, gas temperature, and gas pressure. The user initially attempted to apply the Magnus and Antoine equations but expressed concerns regarding the precision of the Antoine equation. The conversation highlights the need for accurate methods to calculate humidity in helium, suggesting that existing equations may not yield reliable results.

PREREQUISITES
  • Understanding of thermodynamic properties of gases
  • Familiarity with the Magnus and Antoine equations
  • Knowledge of dew point temperature and its significance
  • Basic principles of psychrometrics
NEXT STEPS
  • Research accurate methods for calculating relative humidity in helium
  • Explore the use of psychrometric charts specific to helium
  • Investigate alternative equations for humidity calculations in non-standard gases
  • Study the impact of temperature and pressure on gas behavior in cryogenic applications
USEFUL FOR

Researchers, engineers, and scientists working with gas properties, particularly those focused on helium applications in thermodynamics and humidity measurement.

Telefunken123
Messages
1
Reaction score
0
Hello,
I want to calculate the relative humidity in Helium. I only have the variables "dew point temperature", "gas temperature" and "gas pressure". So I tried with Magnus and Antoine equation. But I read that the Antoine equation is very unprecise. So do you know how to calculate the relative humidity in Helium with these variables?

Best regards
Telefunken
 
Engineering news on Phys.org
Telefunken123 said:
I only have the variables "dew point temperature", "gas temperature" and "gas pressure".
You do, we don't. Are we talking milliKelvin cryogenics or STP here ?
 
  • Like
Likes   Reactions: Vanadium 50

Similar threads

Graduate How much liquid water do I need to get a relative humidity of 10%?
  • · Replies 9 ·
Replies
9
Views
2K
Relative humidity calculations.
  • · Replies 2 ·
Replies
2
Views
5K
Advice on approcah for humidity conversions in c#
  • · Replies 2 ·
Replies
2
Views
3K
Converting humidity ratio to specific humidity
  • · Replies 2 ·
Replies
2
Views
3K
How to Factor Vapor Retarders into Relative Humidity & thus Mold Risk
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Relative humidity question (cooling the air in a room)
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Calculate humidity raise/drop when opening a window
  • · Replies 2 ·
Replies
2
Views
3K
How do I compare indoor and outdoor relative humidity levels?
  • · Replies 2 ·
Replies
2
Views
3K
Need advice and hints for working with helium
  • · Replies 14 ·
Replies
14
Views
2K
High School What Interesting Topics Can Be Explored with Dew Points and Relative Humidities?
  • · Replies 3 ·
Replies
3
Views
1K