Answer to Question #263214 in Molecular Physics | Thermodynamics for Ayesha

Question

Many gas appliances such as ovens and heaters use a small flame to ignite the main burner .In order to make sure that the small flame is burning, a temperature-measuring device is inserted into the flame. What is the most suitable device to use?

Answer 1

The thermocouple is the most suitable device;

used in flame temperature measurements ;

due to several reasons like;

1.low cost,

2.high measurement accuracy (error in the range of 1–5%),

3. very small dimensions,

4.high resistance on temperatures and gases, etc.

thus, thermocouple used in oven and flames.