The neutral flame temperature when using oxygen and acetylene is approximately what Celsius value?

The neutral flame temperature when using oxygen and acetylene is approximately what Celsius value?

• A. 3090 C (5600 F)
• B. 2500 C (4520 F)
• C. 3500 C (6330 F)
• D. 2000 C (3630 F)

Answer: (A)

Neutral flame temperature is the heat at the tip of an oxy-fuel flame when the fuel and oxidizer are mixed in exact stoichiometric proportions, giving complete combustion without excess fuel or oxygen. For acetylene burned with oxygen under those conditions, the adiabatic flame temperature is about 3100 C. That makes the closest value 3090 C. This is the standard reference for a neutral oxy-acetylene flame. Other values would correspond to flames that are fuel-rich, oxygen-rich, or use different fuels, which is why they don’t match the neutral acetylene-oxygen temperature.

Neutral flame temperature is the heat at the tip of an oxy-fuel flame when the fuel and oxidizer are mixed in exact stoichiometric proportions, giving complete combustion without excess fuel or oxygen. For acetylene burned with oxygen under those conditions, the adiabatic flame temperature is about 3100 C. That makes the closest value 3090 C. This is the standard reference for a neutral oxy-acetylene flame. Other values would correspond to flames that are fuel-rich, oxygen-rich, or use different fuels, which is why they don’t match the neutral acetylene-oxygen temperature.