1. Micro-explosion can occur due to fuel bubbles that change from a liquid phase
to a gas phase that occurs in the droplet area. The fuel bubble evaporates in the
droplet area affected by the outside temperature (hot fire) which is too hot, then
the fuel bubble will break first before the droplet runs out during combustion.
When a fuel bubble bursts, the droplet will break into several small droplets.
Micro-explosion can also occur due to inhomogeneous fuel mixing or too much
methanol-(ethanol) mixing and homogeneous mixing (separation) has not
occurred.
2. To determine the constant rate of combustion is to measure the ratio of the
change in the initial diameter of the droplet and the change in the area of ​-​-the
flame.
Changes in burning time and temperature are read through the DAQ Master
software which has been connected to a thermocouple wire, for changes in flames
can be taken from video recordings that have been converted into an image in
units of milliseconds. The extent of the fire was measured using Image-J
software. The data will determine the constant burning speed of a fuel.
2. To determine the constant rate of combustion is to measure the ratio
change in the initial droplet diameter and change in area fire.
Changes in burning time and temperature are read through the DAQ Master
software that has been connected to the thermocouple cable, for the change of
flame can be taken from video recordings that have been converted into images on
millisecond units. Fire level was measured using Image-J software. The data will
determine the constant speed of burning a fuel.
