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Effect of manifold injection of n-decanol on neem biodiesel fuelled CI engine

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  • Vinodkumar, V.
  • Karthikeyan, A.

Abstract

This research aims to achieve low temperature combustion by premixing n-decanol with the air in the intake manifold in a diesel engine along with biodiesel as a primary fuel. In this experiment, neem oil methyl ester has been utilised as a primary fuel through the main injector in the volumetric ratio of 80% diesel and 20% biodiesel namely NB20 along with the manifold injection of n-decanol through a secondary injector at various concentrations such as 10%, 20%, and 30%. It is observed from the experiment that the 30% n-decanol injection produced a brake thermal efficiency of 34.5%, which was comparable to diesel fuel due to its better combustion, as evidenced by a higher heat release rate. Oxides of nitrogen and smoke were reduced simultaneously for biodiesel-n-decanol combinations due to their LTC and the maximum reduction was found for a 30% injection rate of n-decanol. It was about 11.80% for NOX, 9.57% for smoke compared to NB20. It is clearly seen that the 30% injection rate of n-decanol produced lower emissions and better performance than 10% and 20% injection rate of n-decanol. This research suggests that the NB20-n-decanol combinations in premixed combustion mode can be an attractive replacement for diesel fuel.

Suggested Citation

  • Vinodkumar, V. & Karthikeyan, A., 2022. "Effect of manifold injection of n-decanol on neem biodiesel fuelled CI engine," Energy, Elsevier, vol. 241(C).
    • Handle: RePEc:eee:energy:v:241:y:2022:i:c:s0360544221031054
    DOI: 10.1016/j.energy.2021.122856
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    References listed on IDEAS

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