Q4. An Energy Manager plans to improve the Energy utilization by improving new technology-based Fuel Substitution technique as follows. Estimate the Annual Fuel Cost, Net Savings and Simple Pay Back Period. OLD SYSTEM Type of Fuel firing OIL FURNACE GCV 9600 Cal/kg Average Thermal Efficiency 82 % Heat Duty 12 Million kCal /hour Operating Hours per year 8760 hours Fuel Charges RM 4.20 per kg MODIFIED SYSTEM Type of Fuel firing Coconut Chips Furnace GCV 6400 kcal/kg Average Thermal Efficiency 74 % Heat Duty 12 Million kCal/hour Fuel Charges RM 1.25 per Kg Operating Hours per 8760 hours Additional Auxiliary Power + RM 125,000 Manpower Cost Investment for New Coconut RM 750,000 Fired Heater Q4. An Energy Manager plans to improve the Energy utilization by improving new technology-based Fuel Substitution technique as follows. Estimate the Annual Fuel Cost, Net Savings and Simple Pay Back Period. OLD SYSTEM Type of Fuel firing OIL FURNACE GCV 9600 Cal/kg Average Thermal Efficiency 82 % Heat Duty 12 Million kCal /hour Operating Hours per year 8760 hours Fuel Charges RM 4.20 per kg MODIFIED SYSTEM Type of Fuel firing Coconut Chips Furnace GCV 6400 kcal/kg Average Thermal Efficiency 74 % Heat Duty 12 Million kCal/hour Fuel Charges RM 1.25 per Kg Operating Hours per 8760 hours Additional Auxiliary Power + RM 125,000 Manpower Cost Investment for New Coconut RM 750,000 Fired Heater