The fire refers to the process of generating a flame from the start of combustion of the combustible material, and the ignition is divided into two types of spontaneous ignition and forced ignition. The former can be a fire caused by a rapid increase in the reaction speed caused by a chain fire or a thermal ignition. The latter is often ignited with a high temperature heat source such as a small flame, an electric spark or a hot solid.
The minimum temperature at which fuel starts to burn is called ignition temperature when the fuel is heated in the presence of air rather than ignited from the outside. Most of the industrial furnaces are ignited. Ignition temperature refers to the temperature of the ignition heat source when forced to catch fire. The ignition temperature is slightly higher than the ignition temperature. Ignition temperature is related not only to fuel properties, fuel and oxidant performance parameters, but also to external factors such as heat dissipation conditions of combustion chamber.
