Effect of Biodiesel and Radiator Tube Heater on Fuel Consumption of Compression Ignition Engine

Abstract

The growing demand of CI engine for automobiles impacts to the increasing of diesel fuel consumption. The biodiesel fuel and heated fuel in diesel engine are considered as an alternative solution to addres the problems in increasing demand of diesel fuel. This research aims to investigate the effect of adding biodiesel into diesel fuel and fuel heating through a square finned tube in radiator upper tank on fuel consumption in the CI engine. The experimental studies were conducted on 4 cylinder CI engine car using SNI 7554:2010 standard test. The amount of biodiesel added into diesel fuel is varied with a percentage of 0% to 30%. This work also analyzed the effect of different values of the distance between square fin, which are 10 mm, 20 mm, and 30 mm. It can be concluded in this study that incorporating biodiesel in the diesel fuel improves the fuel efficiency. The most efficient consumption is in addition of 15% biodiesel in the amount of 266.7 ml/km. Moreover the fuel heating also affect fuel efficiency of the CI engine. It was found that utilizing a 30 mm square finned tube radiator result in greater fuel consumption rate. Fuel heating can affect the fuel savings resulting from the addition of biodiesel. The most cost-effective consumption is the addition of 20% biodiesel in diesel fuel and heating with 30 mm fin spacing of 206.4 ml/km. By knowing the effect of biodiesel in diesel fuel and fuel heating with the distance between square fin used, it is possible to design an engine system with high fuel efficiency CI engine car.