Open AccessUji Performa Mesin Bensin dengan Sistem Injeksi Berbahan Bakar HCNG
Author(s) -
Mega Nur Sasongko,
Abdi Afifuddin Zuhri
Publication year - 2021
Publication title -
rekayasa mesin
Language(s) - English
Resource type - Journals
eISSN - 2477-6041
pISSN - 2338-1663
DOI - 10.21776/ub.jrm.2021.012.01.8
Subject(s) - compressed natural gas , engine power , automotive engineering , gasoline , thermal efficiency , petrol engine , hydrogen , thrust specific fuel consumption , environmental science , materials science , waste management , fuel efficiency , power (physics) , chemistry , internal combustion engine , engineering , physics , mechanical engineering , combustion , thermodynamics , organic chemistry
Compressed Natural Gas (CNG) is an alternative renewable fuel gasoline replacement. However, due to the low heating value, the use of CNG in the engine will reduce its performance. The addition of hydrogen gas in CNG namely hydrogen-enriched compressed natural gas is expected to increase the power of the motor. This study aims to analyze the effect of hydrogen concentration on the performance of a CNG gasoline engine. The research was conducted on the engine with an indirect fuel injection system with a volume of 124,9 cc. The parameter of the engine that measured is torque, effective power, specific fuel consumption, and effective thermal efficiency. The results showed that the small percentage of hydrogen in CNG could increase the power of the gasoline engine. Power and efficiency reach a maximum of 10% hydrogen concentration. Increasing the proportion of hydrogen in CNG fuel above 10% will significantly reduce engine torque and power. Engine performance at optimal conditions with 10% hydrogen results in torque of 2.71 Kg.m at 670 rpm, effective power of 3.28 Ps at 1055 rpm, SFCe 0.17 Kg / Ps. Hours at 770 rpm and 33.62% effective thermal efficiency at 770 rpm