ThaiScience
ThaiScience
THE JOURNAL OF KMUTNB
Volume 32, No. 02, Month APRIL, Year 2022, Pages 375 - 385
Influence of injection timing on performance, combustion and emission characteristics from diesel engine fueled with diesel-plastic pyrolysis oil blends
Anucha Krutthaphan, Wantana Chaowasin, Kampanart Theinnoi, Chonlakarn Wongkhorsub
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The objective of this research is to study the influence of the injection timing of plastic pyrolysis oil fuel blended with diesel-B7 that is suitable for diesel engine. The plastic pyrolysis oil was processes by a commercial plant oil without any fuel additive. The experiment fuels were the blend of diesel-B7 and pyrolysis oil at the ratio of 50 : 50, 60 : 40, 70 : 30, 80 : 20 and 90 : 10. The research condition were operated by a single cylinder diesel engine, at 50% load of the maximum workload, engine speed at 1,500 rpm. In addition, the injection timing were varied at –15.5, –16.5 and –17.5 Crank Angle Degree (CAD) in order to obtain the optimum injection timing for blended fuel. The result showed that the ratio of pyrolysis oil effects the ignition delay. Therefore, the adjustment of injection timing at –16.5 CAD enhances the combustion performance. The 60 : 40 fuel blended is the most suitable blended ratio for the engine performance by considering the combustion performance and the Brake specific fuel consumption; the emission is also reduced. Consequently, the injection timing adjustment is necessary to obtain best engine performance.
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Published by : King Mongkut's University of Technology North Bangkok
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