Effects of titanium oxide coating on performance and emission characteristics of bio-diesel (Flaxseed oil) fuelled diesel engine

Diesel Engines are the major source of Transportation, Power generation, Marine applications etc., hence diesel engines are being used extensively for fuel economy but due to gradual depletion of world Petroleum resources and the impact on the environment by increase in exhaust gas emissions, there is an urgent need for suitable alternative fuels for the Diesel Engines. In view of this, the various vegetable oils like Flaxseed oil, Jatropa, Palm oil, Sunflower oil, Neem oil, Cotton seed oil etc., are considered as the alternative fuels for the diesel engines. Ceramic coatings like Titanium Oxide on piston crown are increasingly used to provide protection, helping to increase wear resistance, reduce friction, and improve heat shielding. These factors have a significant influence on horsepower ratings, and augmenting them through ceramic coating can often enhance an automobile's performance. Hence an attempt is made to analyze the performance and emission characteristics of diesel and different blends of flaxseed oil using Titanium oxide coated piston on a four stroke single cylinder water cooled Diesel Engine test rig in I.C Engines Laboratory. Experiments were carried out on a diesel engine using different blends of flaxseed oil namely B10, B20, B30 and B40 on volume basis. Performance parameters such as brake power, specific fuel consumption, and thermal efficiencies are calculated based on experimental analysis of the engine. Emissions such as carbon monoxide, carbon dioxide, NOX and unburned hydrocarbon are measured. The results obtained for flaxseed oil and their blends with diesel were compared with the results of diesel