Analisa Efisiensi Motor Bakar Diesel Traknus Type Pl 500 P Untuk Menggerakkan Generator di PT Unkindo Blankahan Oil Mill

Abstract

This research aims to analyze engine performance through parameters of indicated power, effective power, mechanical efficiency, and thermal efficiency under various loads and speeds. The tests were carried out with load variations ranging from 355.95 kW to 370.54 kW and engine speeds from 1489 rpm to 1550 rpm. The results show that the mechanical efficiency of the engine remains relatively stable at around 84.9% – 85%, indicating that mechanical losses are relatively small. Meanwhile, thermal efficiency increases as the load decreases, from 49.30% at the highest load to 64.27% at the lowest load. This indicates that fuel energy utilization is more optimal at lower loads. In addition, the engine that has been operating for a long time tends to experience an increase in temperature even at low loads, due to heat accumulation during operation. Overall, the engine performs well in terms of mechanical and thermal efficiency, although proper load management is required to achieve optimal performance.