The ambiance of combustion including things that need to be controlled during the combustion process. To produce the desired product then we have to set the right atmosphere combustion. Because of the importance of this, the atmosphere is the burning of special attention. There are 3 types of combustion atmosphere ie oxidation, reduction, and neutral.
a. Combustion oxidation
Is a combustion process in which the amount of oxygen required redundant, meaning that all elements of the fuel burned out, but the combustion gas still contains oxygen. In the oxidation combustion flame tends to be shorter and clearer.
b. Arson reduction or called the incomplete combustion
Is a combustion process in which the amount of oxygen required less and within the combustion gases still contain fuel elements, so that lack of oxygen is taken from the existing oxygen in the body is burned. The flame tends to be longer and sometimes smoky (black).
Figure 34. Results of burning the glaze with a reduction atmosphere
c. Burning neutral
Neutral combustion is a combustion process that goes perfectly. In this combustion, comparison of the number of molecules of fuel material burned out and no excess oxygen. Combustion will take place perfectly when the ratio between the number of fuel molecules and oxygen right.
Figure 35. Combustion oxidation atmosphere