| dc.description.abstract | A small diesel engine is a machine that has high efficiency but
causes a high level of pollution. The most widely used fuel so far is
fossil energy which is unrenewable energy. The fruit of the
Calophyllum inophyllum plant has great potential to be developed
as alternative energy for small diesel engines. In this study, the test
fuel used was D100, B100, E5, E10, and E15. The small engine
diesel used TG-R180 Diesel with a compression ratio of 20:1 at
engine turns 1500, 1800, 2100, and 2400 rpm, and the braking load
at a constant prony disc brake is 1,5 kg/cm2
. The result of the study
using E10 fuel can improve engine performance and can reduce the
opacity of the exhaust gas. The highest power in the D100 fuel at
2100 rpm is 8,06 PS. The highest thermal efficiency of E10 fuel is
50,29%. The use of Calophyllum inophyllum biodiesel (B100) can
reduce exhaust gas opacity in small diesel engines when compared
to the use of D100. E10 fuel has the lowest exhaust gas opacity rate
of 4,1%. | en_US |
