ENGINEERING JOURNAL : PENGARUH SUDUT PENGAPIAN DAN JENIS BENSIN TERHADAP UNJUK KERJA MOTOR BENSIN 4 LANGKAH

Jurnal Rekayasa Vol 6 No 2 Artikel 07

Muh Nurkoyim Kustanto
(Staf pengajar Jurusan Teknik Mesin, Fakultas Teknik, Universitas Jember)

ABSTRACT: The automotive technology growth very fast, the development need an engine performance optimalization. The engine performance influenced one of fuel properties , different octane number can be used by people for the application to improve engine performance. The application of fuel with a higher octane number was able to avoid self-burning or knocking which is decreasing the engine efficiency and cause engine damages. But in other case higher octane number not effect on engine perpormance for some reason. This research was conducted to comparison of using Premium, Pertamax, and Pertamax Plus that used in same engine that is 4 stroke Datsun GWE 80/100 . This research concerned to know an optimum of engine performance and the exhaust gas emission. The variables used in this research are Premium, Pertamax, and Pertamax Plus with engine rotation variation 1500, 2000, 2500, 3000, and 3500 rpm and an ignition timing variation 12,15, and 18 degrees BTDC. The result of research shows that using Premium as an engine fuel was produce an optimum of engine performance compared to Pertamax and Pertamax optimum ignition timing by the used of Premium on 15 degrees BTDC

Keywords: discrete Fourier transform, digital signal processing

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