RANCANG BANGUN KOMPOR JET STREAM BERBAHAN BAKAR CAMPURAN OLI BEKAS DAN SOLAR DENGAN VARIASI JUMLAH LUBANG NOZZLE

Abstract

This study examines the efficiency of a jet stream stove design using a fuel mixture of used oil and diesel, with nozzle hole variations of 1, 4, and 6. The research employed an experimental method, utilizing a cylindrical stove with a height of 639 mm and a diameter of 400 mm. The lower chamber functions to heat the fuel, while the upper chamber contains water that is heated to generate steam. This steam is directed into the combustion chamber to intensify the flame. Higher steam pressure produces greater heat output, while lower pressure results in reduced flame height and intensity.

Experimental results indicate that the single-hole nozzle delivers the highest heating efficiency compared to the four- and six-hole nozzles. The time required to boil 5 liters of water was 37 minutes for both the 1-hole and 4-hole nozzles, and 46 minutes for the 6-hole nozzle. Corresponding power outputs were 842 watts, 660 watts, and 530.8 watts, respectively.

The findings suggest that the 1-hole nozzle is the most effective for rapid boiling, despite incomplete combustion that prevented the production of a blue flame due to insufficient oxygen supply. Thus, the single-hole nozzle configuration is recommended for optimal heating performance.