A130107

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Invention Journal of Research Technology in Engineering & Management (IJRTEM) ISSN: 2455-3689 www.ijrtem.com Volume 1 Issue 3 Ç May. 2016 Ç PP 01-07

Investigation Of Performance And Emission In A Single Cylinder Ci Di Diesel Engine Using Diesel Additives With Button Stud Bowl Piston Dr.K.Balasubramanian, S.Varadharajan, B.Manikandan MSEC, Chennai, Tamilnadu. MSEC, Chennai, Tamilnadu. Student, MSEC, Tamilnadu

Abstract This research is based on modifying the piston bowl. Button stud type bowl which increases the compression ratio which is one of the vital parameters controlling the complete combustion. Brake Thermal Efficiency, SFC HC,CO,Smoke level are improved significantly. Key words: SFC B TH Eff, HC,CO,Smoke

1. Introduction Shallow hemi spherical bowl is modified into a button stud type bowl in the piston by which the compression ratio is significantly increased. Pre mixing and atomization is controlled during the initial stages of combustion. Aspect ratio is the ratio of bowl diameter to bowl depth. This gives better spray penetration pressure which is critical for swirl velocity of the air and fuel spray. Re entrant is given in the bowl as a lip which prevents toroidal upward movement of the air ejecting fuel particles over the edge of the chamber rim into squish zone so that the majority of the mixing is

Fig. 1 Button stud bowl completed and burnt inside the piston bowl. At the same time lip tends to create and impose micro turbulence within the chamber. This will form a small direct injection combustion chamber promoting a moderate rotational swirl and a large compression squish which combine to form a toroidal swirl within the piston bowl. Injected fuel with this increased rate of turbulence cannot mix with the air which cause in complete combustion and a corresponding high level of emissions. Figure number 1 shows the button stud bowl design. Experimental setup is illustrated in the figure 2. TV1 Kirloskar single cylinder Diesel is chosen to conduct the research work. Modified piston with button stud bowl is assembled and is tested for both performance and emissions. Test Matrix is listed in the Table 2. Properties of the fuel with the additives blends is tabulated in the Table 3. Table 1 Engine specification Make Kirloskar TV 1 No. of cylinder One Type of cooling Water cooling Ignition Compression Fuel Diesel Bore 87.5 mm Stroke 110 mm Compression ratio 17.5 Speed 1500 rpm Rated power 5.2kW SFC 252 g/kW h | Volume 1| Issue 2 |

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