ENERGY SCANNING IN A PALM OIL MILL

Abstract

This study analyzes energy scanning at the PTPN-IV Pabatu Palm Oil Mill to evaluate the efficiency and sustainability of energy use in palm oil processing. Field observations were conducted to assess key energy components, including water, steam, heat, electricity, and boiler fuel derived from fiber and shell. The results show that feedwater quality significantly affects boiler performance, where proper treatment successfully reduced alkalinity, hardness, and silica to acceptable levels. However, the malfunction of deaerator instruments caused a decrease in feedwater temperature to 80 °C, leading to additional fuel consumption and energy losses. Analysis of superheated steam temperature demonstrated a positive correlation with boiler and turbine efficiency, where higher temperatures improved performance. Furthermore, the underutilization of shell fuel resulted in substantial financial losses, estimated at Rp. 344,190,000 per month. The findings highlight the importance of continuous monitoring, maintenance, and optimization of thermal parameters to strengthen energy balance, minimize losses, and enhance the sustainability of palm oil mill operations.