Abstract
Awareness of environmental pollution and fossil fuel depletion has necessitated the use of biofuels in engines which have a relatively cleaner emissions. Cardanol is a biofuel, abundantly available in India, which is a by-product of cashew processing industries. In this study performance of raw Cardanol blended with kerosene has been tested in diesel engine. Volumetric blend BK30 (30% kerosene and 70% Cardanol) has been used for the test. The properties like flash point, viscosity and calorific value of the blend have been determined. The test was carried out in four stroke diesel engine connected with an eddy current dynamometer. Performance of the engine has been analysed by finding the brake specific fuel consumption (BSFC) and brake thermal efficiency (BTE). The results showed that the brake thermal efficiency of the blend is 29.87%, with less CO and smoke emission compared to diesel. The results were also compared with the performance of Cardanol diesel blend and Cardanol camphor oil blend, which were already tested in diesel engines by other researchers. Earlier research work reveals that the blend of 30% camphor oil and 70% Cardanol performs very closer to diesel fuel with a thermal efficiency of 29.1%. Similarly, higher brake thermal efficiency was obtained for 20% Cardanol and 80% diesel blend.
Highlights
The reserves of fossil fuels were depleting due to their increased usage
Cardanol was blended with diesel and its performance and emissions were studied in a double cylinder CI engine
The raw Cardanol was blended with 30% kerosene and the blend was tested in diesel engine to find the feasibility of using it as a fuel
Summary
The reserves of fossil fuels were depleting due to their increased usage. The inventors in the field of fuels have to think about an alternative to fossil fuel, which is renewable in nature and green to environment. The B20M10 blend (20% Cardanol, 70% diesel and 10% methanol) showed lower emissions and improved BTE in CI engines [6]. In another study Cardanol was blended with camphor oil to reduce its viscosity and the blend has been tested in CI engine [8]. Some of the researchers have blended the biodiesel with kerosene and tested the possibility of usage of the blend as a fuel in diesel engines. They reported improvement in performance with lower emissions [9, 10]. In the present study Cardanol has been blended with kerosene to reduce the viscosity and the blend has been tested in diesel engine. The results were compared with the performance of diesel Cardanol blend and camphor oil Cardanol blend
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