Studies on titanium oxide nanoparticles as fuel additive for improving performance and combustion parameters of CI engine fueled with biodiesel blends

In the current investigation, dairy scum is transesterified to obtain biodiesel. The produced biodiesel is blended with petro diesel in 20% proportion. Titanium oxide nanoparticles are produced by sol gel technique and dispersed in various proportions in the produced fuel sample using a sonicator. The properties of prepared fuel samples are found out and it is very well inferred that they are within ASTM norms. Thermal efficiency of the produced samples was in a general sense higher than that of diesel. The biodiesel blends are tested in a 4S single cylinder diesel engine to get to the performance and outflow attributes. It is seen that most elevated thermal efficiency is acquired at B20 blend which is 1.04% more than that of diesel at full load. Addition of 125 PPM of titanium oxide nanoparticles showed highest efficiency of 33.18% which is 3.01% higher as compared to that of diesel. Hydrocarbon and carbon monoxide outflows of B20 mix was 6.17% and 20% lesser in comparision with diesel. Further adding 125 PPM of titanium oxide nanoparticles to B20 reduced Hydrocarbon and carbon monoxide outflows by 46%and 37.5% respectively. There was a marginal increase in NOx outflow in B20 as well as titanium oxide nanoparticle blended samples. Higher peak pressure and heat release rate is observed in titanium oxide nanoparticle blended samples. (c)& nbsp;2021 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Conference on Materials, Processing & Characterization.

Automated summary

In this study, dairy scum is transesterified to obtain biodiesel, which is then blended with petro diesel in a 20% proportion. Titanium oxide nanoparticles are produced using the sol-gel technique and dispersed in the fuel samples. The prepared fuel samples meet ASTM norms and demonstrate higher thermal efficiency compared to diesel.