Studi Komparasi Performa Motor Bakar 4 Tak Karburator dan Motor Bakar 6 Tak Mub-2 Karburator Berbahan Bakar Pertamax

Abstract

This paper describes the comparison of the performance of a 4 stroke carburetor motorbike with the MUB-2 six-stroke engine with additional combustion duration and two working strokes. The increase in combustion duration aims to re-burn combustible species that have not been completely burned in the first combustion. This study used a 4 stroke motor with a capacity of 125 cc and then modified it into a 6 stroke motorbike with twice the duration of combustion. The observed local atmospheric conditions at a relative humidity of about 76% RH, and the ambient temperature and pressure were around 24 ° C and 101.32kPa, respectively. Implementation of data retrieval with crankshaft rotation at 600 rpm intervals from 2400 rpm to 7200 rpm, with a braking load of 5 - 10 kg. The 6 stroke MUB-2 motor shows 8% effective power, 7.8% torque, 1.4% combustion efficiency, 4,3% duty cycle, 2% thermal efficiency and 7% greater fuel efficiency than conventional 4 stroke engines . The fuel consumption rate of the MUB-2 6-stroke engine is 43.5% lower than that of the conventional 4-stroke engine. This means that the performance on the 6 stroke MUB-2 motorbike is higher than the conventional 4 stroke motorbike.

Analisa Performa Heat Exchanger Dengan Penambahan Vortex Generator Tipe Delta Wing Dan Delta Winglet Tape Insert Guna Mengatasi Icing Pada Karburator Piston Engine

“…Menurut (Nurdiansyah et al, 2021) fungsi dari karburator itu sendiri adalah sebagai perangkat yang memadukan udara dengan bahan bakar untuk mesin pembakaran dalam (internal combustion). Pada dasarnya cara kerja karburator adalah dengan menggunakan prinsip kerja Bernoulli, yaitu semakin cepat udara yang bergerak maka akan semakin rendah juga tekanan statisnya, dan semakin tinggi tekanan dinamisnya.…”