%A Safana 	 	Frizilla 
%T ANALISA PENGGUNAAN BIODIESEL MINYAK JAGUNG TERHADAP
KINERJA MESIN DIESEL DAN EMISI GAS BUANG 
%X Biodiesel merupakan bahan bakar yang dipakai sebagai alternatif bagi bahan bakar
mesin Diesel dan terbuat dari sumber terbaharui seperti minyak nabati antara lain
minyak jagung. Ketersediaan bahan bakar minyak yang sangat terbatas dapat diatasi
dengan melakukan pencampuran menggunakan biodiesel. Penggunaan energi
alternatif biodiesel minyak jagung ini diharapkan nantinya dapat mengatasi
ketergantungan penggunaan bahan bakar fosil. Penelitian ini bertujuan untuk
mengetahui pengaruh variasi campuran bahan bakar solar dan biodiesel terhadap
prestasi mesin dan emisi gas buang mesin Diesel 4 Langkah. Penelitian ini
menggunakan variasi bahan bakar solar murni, B5, B10 dan B15 pada putaran
mesin 1.000 rpm, 2.000 rpm dan 3.000 rpm dengan variasi bukaan katup beban laju
aliran beban dinamometer 0,5; 1; dan 1,5 putaran. Penelitian ini dilakukan di
Laboratorium Motor Bakar dan Propulsi Teknik Mesin, Universitas Lampung
dengan manggunakan alat uji prestasi mesin yaitu mesin Diesel HATZ empat
Langkah TD202 dan alat uji emisi gas buang yaitu mesin Stargas 898. Berdasarkan
data dari hasil pengujian, diperoleh campuran terbaik pada penggunaan bahan
bakar B15 dengan peningkatkan nilai torsi sebesar 66,15%, daya engkol sebesar
55,10% dibandingkan dengan bahan bakar solar murni. Sedangkan untuk
penurunan konsumsi bahan bakar spesifik engkol (bsfc) yang paling hemat
diperoleh pada campuran bahan bakar B5 sebesar 83,33% dibandingkan bahan
bakar solar murni. Penurunan opacity emisi gas buang pada variasi campuran bahan
bakar B15 bukaan katup 0,5 putaran yaitu diperoleh sebesar 49,3% dibandingkan
dengan opacity emisi gas buang pada solar. Sedangkan penurunan opacity emisi
gas buang pada bukaan katup 1,5 putaran yaitu diperoleh sebesar 4,16%
dibandingkan dengan opacity emisi gas buang pada bahan bakar solar.
Kata kunci: solar-biodiesel, biodiesel minyak jagung, prestasi mesin, emisi gas
buang Biodiesel is a fuel used as an alternative to diesel engine fuel and is made from
renewable sources such as vegetable oils, including corn oil. The very limited
availability of fuel oil can be overcome by blending it using biodiesel. It is hoped
that the use of alternative energy such as corn oil biodiesel will be able to overcome
dependence on the use of fossil fuels. This research aims to determine the effect of
variations in diesel and biodiesel fuel mixtures on engine performance and exhaust
emissions of 4 stroke diesel engines. This research uses variations of pure diesel
fuel, B5, B10 and B15 at engine speeds of 1,000 rpm, 2,000 rpm and 3,000 rpm
with variations in valve openings, dynamometer load flow rate of 0.5; 1; and 1.5
turns. This research was carried out at the I n t e r n a l Combustion Engine and
Propulsion Laboratory, Mechanical Engineering D e p a r t m e n t , University of
Lampung using engine performance test equipment, namely the TD202 four-stroke
HATZ Diesel engine and exhaust gas emission test equipment, namely the Stargas
898 engine. Based on data from the test results, the best mixture of fuel was
obtained. B15 with an increase in torque value of 66.15%, cranking power of
55.10% compared to pure diesel fuel. Meanwhile, the most economical reduction
in brake specific fuel consumption (bsfc) was 83 .33 %, obtained with the B5 fuel
mixture compared to pure diesel fuel. The reduction in exhaust gas emission
opacity in variations of the B15 fuel mixture with a valve opening of 0.5 revolutions
was 49.3% compared to the exhaust gas emission opacity in diesel. Meanwhile, the
reduction in exhaust gas emission opacity at a valve opening of 1.5 revolutions was
obtained by 4.16% compared to the exhaust gas emission opacity in diesel fuel.
Keywords: Diesel-biodiesel, corn oil biodiesel, engine performance, exhaust
emissions.
%C UNIVERSITAS LAMPUNG
%D 2024
%I TEKNIK
%L eprints87219