The Effect of Nozzle-Opening Pressure on the Performance and Emission Parameters of a Diesel Engine Operated on Aphanizomenonflos Biodiesel-Titanium Dioxide (Tio2) Nanofluid-Diesel Blend
G.Jayabalaji1, P.Shanmughasundaram2

1G.Jayabalaji, Department of Mechanical Engineering, Karpagam Academy of Higher Education, Coimbatore, India.
2P.Shanmughasundaram, Department of Automobile Engineering, Karpagam Academy of Higher Education, Coimbatore, India.
Manuscript received on September 20, 2019. | Revised Manuscript received on October 05, 2019. | Manuscript published on October 30, 2019. | PP: 6163-6167 | Volume-9 Issue-1, October 2019 | Retrieval Number: A1428109119/2019©BEIESP | DOI: 10.35940/ijeat.A1428.109119
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Abstract: In the present investigation, titanium dioxide (TiO2 ) nano-fluid (5%, 10%, and 15%) was blended with AphanizomenonFlos (AF) biodiesel (20%)-diesel (80%) blend. Among all blends, AFD-10TiO2 blend was optimum, as per the authors earlier investigation. Hence, to find the optimum operating parameter of AFD-10TiO2 , the nozzle opening pressure of the existing diesel engine was varied in the range of 160 bar to 220 bar in steps of 20 bar. AFD-10TiO2 /200 gave optimized results compared to other test fuels. BSFC forAFD-10TiO2 /200 decreased with an increase in injection pressure of AFD-10TiO2 .The BTE of the engine increased about 1.5% to 5.5% more than in the case of diesel, and AF-D blend respectively. The tailpipe emissions for AFD-10TiO2 /200such as CO, HC, smoke reduced by about 16%, 12%, and 18% respectively. The NOx emission forAFD-10TiO2 /200increased by about 14% more than that for diesel.
Keywords: Diesel engine,  Biodiesel, Aphanizomenon Flos Biodiesel, Titanium Dioxide, Nano-fluid.