STUDI EKSPERIMENTAL PENGARUH PENAMBAHAN BIOETANOL PADA BAHAN BAKAR PERTAMAX TERHADAP UNJUK KERJA MOTOR BENSIN
ABSTRACT: An experimental
study was conducted to investigate the effect
of bioethanol blending in pertamax
to the performance of four-stroke spark ignition engine. The engine was
tested in dynamometer bench. The performance parameters investigated were
torque, brake power and specific fuel consumption (SFC).
The engine performance test used pertamax 100% (E 0), pertamax
95%-bioethanol 5% (E 5), pertamax 90%-bioethanol 0% (E 10), pertamax
85%-bioethanol 15% (E 15), pertamax
80%-bioethanol 20% (E 20). The experimental results showed that torque and brake power were higher when
pertamax-bioethanol blending was used as fuel
on low to medium engine speeds for
all cases investigated. The higest torque and brake power was reached
when the engine fueled by E 20. On the other hand, for high engine speeds,
torque and brake power were reduced by increasing percentage of bioethanol,
even E 15 % and E 20% were lower than E 0. In this engine speeds, the higest
torque and brake power was reached when the engine fueled by E 5. The results also showed that the use of
pertamax-bioethanol blend caused
lower SFC throughout all the engine speeds range studied. The lowest SFC power
was reached when the engine fueled by E 2.
Penulis: Joko Winarno
Kode Jurnal: jptmesindd110190
