I want to measure flame temperature inside a gas turbine combustor with optical access. How do i do that without interacting with the combustor environment?
Dear Mr. Rifat.
For these cases, the thermal cameras are recommended.
You can find some similar equipment using the site http://www.flir.com/home.
I hope you can perform good case studies.
Best Regards,
Harley S. Alencar
Dear Rifat
Thermal camera can't give you data with high response because fps is not high enough
can you locate the position of measurements
how many positions you want, what is the distance of wall
Which frequency an spatial resolution you need you need?
if you know the temperature in some region of the chamber (ej: freh gases) you can use shadowgraphy and shlieren methods. These give you first and second derivatives of the optical density with space; this density is nearly proportional to temperature because usually pressure have very low impact in the flame. The optical density is proportional to mass density but depends also on composition (though in fuel-air combustions the effect is usually lower than 10%).
Fluorescence methods can give you also information on the temperature local but are far more complex and expensive.
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