The flame stability limit, which was involving the critical flow condition, lift off and blow out, could
be affected by the burner geometry in the combustion system installation. Consequently a flame holder should
be put in, to hold the flame as big as possible on a stable condition. The flame holder itself, is a device to hold
the flame, whereas the flame holder could disturb the air and fuel flow. The fluid flow will be disturbed if the
forces work on the fluid flow will be interrupting their stability. The fluid flow blockage by the flame holder will
generate vortex and this vortex will end up with a turbulence condition. This turbulence condition will shift the
critical stability limit and will produce a perfect combustion. In this research a concentric jet flow burner was
implemented and the fluid flow speed and air speed was variated. To achive a perfect result, it is necessary to
visualize the flow pattern using a schlieren photograph system. A thermocouple was introduce to measure the
flame temperature and to know the temperature distribution. It is recocnized that a flame holder could be able
to increase the flame stability zone. The hollow shaft flame holder was the one who could increase the stability
zone significantly, because this kind of flame holder could hold the flame excellently and no lift off take place.
The flame temperature distribution increase. The temperature increase has the smallest range compare with the
combustion using the other kind of flame holders.