Abstract:
This study aims to analyze the characteristics of the combustion of a mixture of rubber
seed oil with methanol using droplets. The observed characteristics are flame temperature,
ignition delay time, combustion rate, and visualization (high heat and flame colour). The
variation of the mixture used in this study was a mixture of rubber seed oil and methanol with
mixed percentages of 0%, 10%, 20%, 30%, 40%, and 50%. The droplet tool used for research
is a tool designed by the researcher. The results showed that the highest flame temperature
value was found in the 0% mixture, 114ºC, and the lowest was in the 50% mixture, namely
79.67ºC. The highest Ignition delay time value is in the 0% mixture, which is 3.33 s, and the
lowest is at 50%, which is 2.21 s. The highest combustion rate value at 50% mixture is 0.517
mm
2
/s and the lowest at 0% is 0.317 mm2
/s. The highest flame height in the 0% mixture was
42.6 mm, and the lowest at 50% was 23 mm.
Keywords: Droplets, Rubber Seed Oil, Ignition Delay Time, Characteristics ofCombustion.
