Experimental Analysis of a Ci Engine with the Effect of Different Injection Pressures using (Nome) Biodiesel

The biodiesel production in our country has a large scope in the upcoming years and can be made available in plenty which has a main role in controlling the more number of uses of fossil fuels. By blending ethanol with the diesel the amount of usage of the fossil fuel can be reduced in a drastic level which can pave the way for development in producing biodiesel using more nonedible oils which is available in the different places of the country. In this paper experiments were done with the biodiesel which is produced from neem oil. The seeds of the neem tree contain certain % oil and this can be made into use by converting it in to non edible oil with the help of transesterification process. More number of studies has been already done by using the neem oil and so the current study gives the concert as well as also the various release characteristics of neem oil methyl ester by testing at different injection pressures. The specific injection pressure may be including 200 bar, 225 bar and also at 250 bar.

Study of Performance, Combustion and Emission Characteristics of DI Diesel Engine Fuelled with Neem Biodiesel with Carbon Nano Tube as Additive

To tackle one of the major environmental issues concerning modern day mankind, that is air pollution and to reduce dependency on other countries for conventional fuel, finding an alternative fuel is of high priority. Biodiesel is one such alternative. Adding nanoparticles like Carbon nanotubes (CNT) leads to reduction in emissions and enhancement in performance. In this context, in the present paper an experimental investigation was carried out on a computerized single cylinder water cooled diesel engine coupled with an eddy current dynamometer to determine the impact of blending CNT with biodiesel (Neem Oil Methyl Ester or NOME) and a comparative study of various blends using diesel as the baseline was done. The concentration of CNT used were 25 ppm, 50 ppm and 100 ppm CNT blended with B20 biodiesel. The blends were prepared using homogeniser. Readings were recorded for different loads for all the blends and comparative graphs were drawn for performance, combustion and emission characteristics. There was an improvement in the performance characteristics with 8.1% increase in BTE, lowered emissions with 0.0785% decrease in CO and 8.15% decrease in UBHC emissions along with improved combustion relative to diesel when CNT (50 ppm) was added to B20 biodiesel.