Experimental Investigation on a Compression Ignition Engine with Blends of Plastic Oil and Diesel as Fuel
01 Nov 2019-pp 85-97
Abstract: Waste plastic is a conventional source of energy. It can be transformed into oil by thermal degradation method such as pyrolysis. In this work, pyrolysis plastic oil (PPO) was prepared by microwave pyrolysis method using waste plastic. The plastic oil was analysed, tested and used as the properties of it were similar to that of diesel. The single cylinder direct injection diesel engine was fuelled with different blends at different loads from no load to full load condition. The performance, combustion characteristics and emissions were recorded and compared with that of diesel. Based on the results, it is found that the brake thermal efficiency for blends PPO20, PPO40, PPO60, PPO80 and PPO100 at 90% of full load condition were lower by 3.9, 6.8, 8.3, 9 and 9.7%, respectively, with respect to diesel when the engine was operated at a constant speed of 1500 rpm. Specific fuel consumption for blends PPO20, PPO40, PPO60, PPO80 and PPO100 at 90% of full load were higher by 0.4, 1.2, 2, 3.6 and 6%, respectively, as compared to diesel at constant speed (1500 rpm). The NOx emissions for blends PPO20, PPO40, PPO60, PPO80 and PPO100 at 90% of full load were higher by 7.65, 13, 17, 23 and 24.2%, respectively, as compared to diesel while engine was running in constant speed (1500 rpm). The CO emissions for PPO blends PPO20, PPO40, PPO60, PPO80 and PPO100 at 90% of full load were lower by 6.5, 17.4, 26, 30.4 and 7.6%, respectively, as compared to diesel at constant speed (1500 rpm). The UHC emissions for PPO blends PPO20, PPO40, PPO60, PPO80 and PPO100 at 90% of full load were lower by 6.5, 17.4, 26, 30 and 39%, respectively, as compared to diesel at constant speed (1500 rpm). It can be concluded that the plastic oil could be used as a substitute fuel in diesel engine.
References
More filters
01 Jan 1977
TL;DR: In this paper, the relative contribution of "prompt NOx" to the final NOx levels increases with decreasing equivalence ratio and the rate of NOx formation in the reaction zone is found to be higher than in laminar flames.
Abstract: NOx formation has been studied in lean, premixed, turbulent flames stabilized by perforated plates. The burner pressure was atmospheric, but other parameters were representative of gas turbine operating conditions. Prevaporized Jet A fuel was injected into preheated unvitiated air and thoroughly mixed prior to combustion. Mixture inlet temperature was 750°K and total residence times were approximately 4 msec. NOx, CO, CO2 and hydrocarbon levels were measured along the jet and recirculation zone axes. Results show a very rapid increase in NOx in the reaction zone which cannot be accounted for by O-atom radical overshoot. Post-flame zone NOx formation rates agree with the predictions of equilibrium theory. The relative contribution of “prompt NOx” to the final NOx levels increases with decreasing equivalence ratio. The rate of NOx formation in the reaction zone is found to be higher than in laminar flames. Turbulent transport processes are believed to be the dominant effect. NOx formation via nitrous oxide intermediate does not appear to be important under the present experimental conditions. Large amplitude temperature oscillations observed in turbulent premixed flames were found not to affect NOx formation rates.
32 citations
01 Jan 2013
TL;DR: In this article, the effect of using waste plastic oil in a diesel engine without any engine modification was studied and the test results showed the specific fuel consumption of waste plasticoil blends were higher than diesel fuel.
Abstract: The objective of this research was to study the effect of using waste plastic oil in a diesel engine without any engine modification. The engine used in this study is 6 cylinders naturally aspirated 4-stroke diesel engine (Compress Ignition) "Hino Wo6d". In present work , the engine fueled with blends of diesel fuel with plastic oil in the ratio of diesel to waste plastic oil 75:25(blend25%), 50:50(blend50%) and 25:75(blend75%) are experimentally measured and analyzed and compared with that of diesel fuel. The test results showed the specific fuel consumption of waste plastic oil blends were higher than diesel fuel. Amount of Carbon dioxide carbon monoxide hydrocarbon and nitrogen oxide from waste plastic oil were higher than diesel operation.
20 citations