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ITS » Undergraduate Theses » Teknik Mesin Posted by dewi007 at 05/12/2008 11:23:15 • 15153 Views
STUDI EKSPERIMENTAL TENTANG PENGARUH
TIMING INJEKSI TERHADAP UNJUK KERJA ENGINE
ISUZU PANTHER C233 BERBAHAN BAKAR BIODIESEL
CPO B30
EXPERIMENTAL STUDY ABOUT EFFECTS OF
INJECTION TIMING IN BIODIESEL CPO B30 FUELED
ISUZU PANTHER C233 ENGINE PERFORMANCE
Author : YOHANES BRAM E. F.
ABSTRAK
Biodiesel adalah bahan bakar alternatif yang masih jarang
digunakan khususnya di bidang otomotif. Spesifikasi engine diesel yang
ada saat ini kebanyakan didesain untuk bahan bakar solar. Untuk
menggunakan bahan bakar biodiesel diperlukan beberapa perubahan
pada settingan engine. Salah satunya adalah perubahan pada timing
injeksi. Pengujian ini bertujuan untuk mengetahui pengaruh perubahan
timing injeksi terhadap unjuk kerja dan emisi gas buang engine diesel
multisilinder.
Pada penelitian ini akan dilakukan pengujian kelompok
kontrol dan kelompok uji. Kelompok kontrol adalah unjuk kerja dari
engine standar dengan bahan bakar solar. Sedangkan kelompok uji
adalah unjuk kerja engine dengan bahan bakar biodiesel CPO 30
B30 dan dengan variasi timing injeksi retard dan advance 40 20 .
Pengujian akan dilakukan dengan engine Isuzu Panther C233 dan
dengan pembebanan Water Brake Dynamometer buatan VEB
Machinenwerks type D4. Pengujian dilakukan di Laboratorium Motor
Pembakaran Dalam Teknik Mesin FTI ITS.
Dengan pengujian ini didapatkan perubahan unjuk kerja dan
emisi gas buang yang lebih jelek daripada engine diesel multisilinder
berbahan bakar solar. Unjuk kerja terbaik biodiesel didapatkan pada
timing injeksi advanced 20 dengan persentase penurunan daya torsi
bmep sfc effisiensi thermal dan soot masing masing 10.24
22.71 22.71 -22.15 14.89 dan 51.69.
ABSTRACT
Biodiesel is a fuel that rarely used especially in automotive
technology. Many engines are desgined to use diesel oil. Regular engine
can use biodiesel with a few changes on its setting. Changes on
injection timing is one of them. This experiment has aim to measure the
effects of injection timing on diesel engine performance especially
multicylnder engine. On the previous research it is said that biodiesel
use in diesel engine will decrease the engine performance. In this
experiment performance of biodiesel fueled engine is compared with
diesel oil fueled one.
There are two groups in this experiment control group and
tested group. Control group is diesel oil fueled engine with standard
timing injection. Tested groups are biodiesel fueled engine with
standard advanced and retarded timning injection. Experiment was
done with Isuzu Panther C233 engine connected to water brake
dynamometer VEB type D4 at Fuel and Internal Combustion Engine
Laboratory FTI ITS.
The result of this experiment is diesel oil fueled engine
performance is better than biodiesel fueled one in tested timing
injections. But the best biodiesel fueled engine performance is found on
2 degree advanced timing injection with decreasing percentage of
power torque bmep sfc thermal efficiency and soot as 10.24
22.71 22.71 -22.15 14.89 and 51.69.
Keywords:
biodiesel CPO; unjuk kerja; timing injeksi; emisi gas
buang; water brake dynamometer
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