In the high tension field, the excitation and ionization of particles on the fuel drop surface only need the lower cylinder temperature to realize the better second atomization.

When lighting happens, especially dry lighting, which bring little precipitation, surface temperature growing and fuel drying, these lead to fires easily.

Infrared radiation of the systems are caused by high temperature due to fuel combustion, and can be grouped into two kinds, radiation from solid surface and radiation from exhausted gases.