Investigation on the Performance of Diesel Engine with Modified Piston Geometry and Using Waste Plastic Pyrolysis Oil Blend
R Siva Kumar1, K Tirupathi Reddy2, K Hema Chandra Reddy3

1R Siva Kumar, Research Scholar, Department of Mechanical Engineering, JNTUA College of Engineering, Anantapuramu (Andhra Pradesh), India.
2K Tirupathi Reddy, Professor, Department of ME, RGM College of Engineering and Technology Nandyal (Andhra Pradesh), India.
3K Hema Chandra Reddy, Professor, Department of ME, JNTUA College of Engineering, Anantapuramu (Andhra Pradesh), India.
Manuscript received on 19 May 2019 | Revised Manuscript received on 05 June 2019 | Manuscript Published on 15 June 2019 | PP: 84-89 | Volume-8 Issue-1S2 May 2019 | Retrieval Number: A00170581S219/2019©BEIESP
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Abstract: The performance evaluation of geometrically modified IC engine against pyrolysis blended diesel fuel was studied. The pyrolysis oil was derivative of waste plastic oil and blended with diesel at different weight ratios. The engine piston considered to be as the most predominant component towards contribution of engine performance and emissions. An attempt has been made to change the piston geometry by offering additional holes in the piston crown and making groves in the piston bowl. The modification in the piston geometry helped to attain the strengthening and boosting the inlet air swirl movement which further assisted improvement in the performance and engine emission characteristics. The experiments were successfully carried out with modified piston geometry based diesel engines with pyrolysis blended diesel oils. The outcome of the present work further proves that the pyrolysis blended diesel oil showing significantly improved performance in brake thermal efficiency and specific fuel consumption. The emission parameter confirms that the Unburnt hydrocarbon, Co and NOx levels also measurably reduced. The results further proves that it could be considered as rapidly emerging blended fuel in replacement of diesel fuels in near future.
Keywords: Grooved Piston, Swirling of Air, Tyre Pyrolosis Oil, Volumetric Efficiency (VE), NOX Emission.
Scope of the Article: Refrigeration and Air Conditioning