Flame temperature based on colour

  • Context: Undergrad 
  • Thread starter Thread starter richard_z
  • Start date Start date
  • Tags Tags
    Colour Temperature
Click For Summary
SUMMARY

The discussion centers on the relationship between flame color and temperature estimation, highlighting that while general classifications exist (e.g., yellow flames around 1000°C), precise temperature measurement requires advanced techniques. Participants emphasize the importance of measuring continuum wavelength distributions rather than relying solely on color, as emission lines can mislead interpretations. The conversation suggests that accurate temperature analysis of flames is more effectively conducted through quantitative methods rather than visual color assessments.

PREREQUISITES
  • Understanding of flame color temperature relationships
  • Familiarity with continuum wavelength distribution measurement
  • Knowledge of emission lines and their effects on flame color
  • Experience with spectroscopic analysis tools
NEXT STEPS
  • Research methods for measuring continuum wavelength distributions in flames
  • Explore spectroscopic tools for accurate temperature measurements
  • Study the impact of emission lines on flame color interpretation
  • Investigate academic papers on flame spectroscopy and temperature analysis
USEFUL FOR

Researchers in thermodynamics, chemists studying combustion, and engineers involved in flame analysis will benefit from this discussion.

richard_z
Messages
1
Reaction score
0
So I've been wondering, is it possible to determine how hot a flame is based on the colour? I know that you can classify it into general groups (yellow ~= 1000*C, etc.), but is there any way to get a more accurate temperature estimation? Any papers on this?
 
Science news on Phys.org
You'd need a device to very accurately measure the wavelengths, but I can't think of anything stopping you.

However I feel like there are more accurate and easy ways to measure temperature. Generally speaking I think it's more common to use color to analyze temperature distributions of a specific object.
 
I think you need to be more quantitative - i.e. measuring the continuum wavelength distribution and fitting it. Otherwise you can be fooled by emission lines - put a tiny bit of a sodium salt in a blue flame and it turns yellow.
 

Similar threads

Undergrad How do emissivity and absorptivity affect thermal imaging results?"
  • · Replies 3 ·
Replies
3
Views
4K
Undergrad Estimate thickness of an object based on radiative heat flux decay curve
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Can adding a second peltier cooler help lower temperatures even further?
  • · Replies 4 ·
Replies
4
Views
2K
Can a Candle Flame be Improved for Better Efficiency?
  • · Replies 23 ·
Replies
23
Views
3K
Undergrad Do smells travel farther in colder or hotter temperatures?
  • · Replies 8 ·
Replies
8
Views
4K
Undergrad How did Charles obtain his law when absolute temperature wasn't define
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Processes that determine the color of fire
  • · Replies 10 ·
Replies
10
Views
3K
Undergrad Empirical temperature scales using different thermometers
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad Getting a sauna to a certain temperature - faster with more rocks?
  • · Replies 25 ·
Replies
25
Views
6K
Correlating albedo with temperature?
  • · Replies 6 ·
Replies
6
Views
3K