tailieunhanh - The influence of cetane number and oxygen content in the performance and emissions characteristics of a diesel engine using biodiesel blends

The purpose was, firstly, to improve the combustion, ignition quality, performance and emission characteristics of the WPPO blends. Secondly, EHN has the potential to reduce emissions of CO, CO2, UHC, NOX and PM. | The influence of cetane number and oxygen content in the performance and emissions characteristics of a diesel engine using biodiesel blends International Journal of Mechanical Engineering and Technology IJMET Volume 10 Issue 03 March 2019 pp. 903 919 Article ID IJMET_10_03_093 Available online at http ijmet JType IJMET amp VType 10 amp IType 3 ISSN Print 0976-6340 and ISSN Online 0976-6359 IAEME Publication Scopus Indexed THE INFLUENCE OF CETANE NUMBER AND OXYGEN CONTENT IN THE PERFORMANCE AND EMISSIONS CHARACTERISTICS OF A DIESEL ENGINE USING BIODIESEL BLENDS Maroa Semakula and Freddie Inambao Department of Mechanical Engineering University of KwaZulu-Natal Durban South-Africa ABSTRACT Waste plastic pyrolysis oil WPPO and ethanol are attractive renewable energy sources as ethanol has a high content of oxygen. However for this particular study direct blending of conventional diesel WPPO ethanol and 2-ethyl hexyl nitrate EHN was attempted. The purpose was firstly to improve the combustion ignition quality performance and emission characteristics of the WPPO blends. Secondly EHN has the potential to reduce emissions of CO CO2 UHC NOX and PM. Thirdly ethanol improves viscosity and miscibility of biodiesel blends besides increasing the oxygen content of WPPO. Five mixing ratios were used in the following order 50 WPPO25 E25 60 WPPO20 E20 70 WPPO15 E15 80 WPPO10 E10 and 90 WPPO5 E5 for conventional diesel CD WPPO and ethanol and respectively. However for EHN the mixing ratio was determined by the total quantity of blended fuel and put at . Complete miscibility was observed with no phase separation allowed from the blended mixtures throughout the experiment. Performance and emission characteristics of a stationary single cylinder water-cooled diesel power generator were evaluated. The results obtained were compared carefully to ASTM standards and discussed using tables and graph figure curves. The conclusion was that ethanol and EHN can .