Effects of Fuel Replacement on the Performance and Fuel Consumption of Steam Power Plant

Analysis of fuel consumption is important in order to determine the performance of a Steam Power Plant. Excessive fuel consumption can reduce Power Plant efficiency. Efficiency of the Power Plant can be improved by replacing the type of fuel. The heating value of different fuels in each type will produce different combustion values. The heat of this combustion will affect the efficiency and fuel consumption. For this reason, an analysis of the effect of fuel replacement has been carried out on the performance and fuel consumption of the Steam Power Plant. This study analysis uses Cycle Tempo software. The fuel used is natural gas, residual oil or Marine Fuel Oil (MFO) and Biosolar B30. The results showed the highest efficiency produced by Biosolar B30 with value of 31.78%. The least fuel consumption is produced by natural gas fuel with total consumption of natural gas in 1 year of operations is 277.198 million liters/year. This study shows that although the highest efficiency is produced by Biosolar B30 fuel, the lowest amount of fuel consumption is produced by natural gas. The low calorific value of Biosolar B30 fuel causes the amount of fuel used during the combustion process to become more. High calorific value of natural gas fuel causes the amount of fuel consumption during 1 year of operation to be less. This causes the lowest fuel consumption value is produced by natural gas fuel.