Experimental Investigation on Injection System of Diesel Engine for Material Compatibility with Waste Cooked Oil Biodiesel

Presently the whole globe is concerned about the effect of environmental pollution by the automobile vehicles. Biodiesel is the only alternative for diesel fuel due to its environment-friendly properties and easy availability. Biodiesel can be used directly in diesel engines without modifying the design of present engine but automotive companies are not ready to implement because of less research available about material compatibility issues of biodiesel. In this, experimental investigation is carried to study impacts of waste cooked oil biodiesel and diesel fuels on the injection system of diesel engine. This is done on fuel filter, fuel injectors, and fuel pump with both fuels i.e. diesel fuel and WCO biodiesel, engine was run for 100 h test period. Wear and pitting corrosion is observed around the needle tip after 100 h test run with diesel but not in case of waste cooked oil biodiesel and nozzle holes were affected nearly similar in both fuels.