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Effect of fuel injection timing on CI engine fuelled with neem biodiesel blends–a comparative study of experimental and numerical simulation

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Abstract

The present work illuminates numerical evaluation of neem biodiesel’s (NBD) potentiality for energizing the modern diesel engines. The blends were prepared of NBD and diesel and were mixed in various volumetric percentages (20%, 50%, and 100%). The paper explains the effect of injection timing and blends ratios on the performance and emission of a compression ignition engine. The results were obtained from Diesel-RK software were validated experimentally. The simulation study performed on the software comprehends the fuel spray characteristics at varying fuel injection timings. The simulation study flag-posts that fuel injection at 19 deg. bTDC provided a considerable reduction in Nitrogen emissions and NBD20 blend as the best choice when performance and emission parameters were considered.

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Abbreviations

BTHE:

Brake thermal efficiency

BSFC:

Brake specific fuel consumption

NBD:

Neem biodiesel

EGT:

Exhaust gas temperature

NOx:

Nitrogen oxides

HSU:

Hartidge smoke units

SMD:

Sauter mean diameter

FIT:

Fuel injection timing

V:

Fuel spray velocity (m/s)

VO :

Initial fuel spray velocity (m/s)

X:

Spray length (meter)

Xm :

Fuel penetration distance (meter)

t:

Travel time for the fuel to reach distance x from injector nozzle

T:

Current soot concentration in cylinder

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Authors and Affiliations

  1. Department of Mechanical Engineering, Nitte Meenakshi Institute of Technology, Bangalore, India

    Campli Srinidhi, A. Madhusudan & Kiran Aithal

  2. Faculty of Electrical and Mechanical Engineering, College of Military Engineering, Pune, India

    Campli Srinidhi

  3. Department of Mechanical Engineering, PVG’s College of Engineering, Pune, India

    Pratik Kshirsagar, Moreshwar Joshi, Anish Kulkarni & Shivaji Gawali

  4. Department of Mechanical Engineering, D.Y. Patil College of Engineering, Ambi, Pune, India

    S. V. Channapattana

Authors
  1. Campli Srinidhi
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  2. Pratik Kshirsagar
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Correspondence to Campli Srinidhi.

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Srinidhi, C., Kshirsagar, P., Joshi, M. et al. Effect of fuel injection timing on CI engine fuelled with neem biodiesel blends–a comparative study of experimental and numerical simulation. Int J Energy Environ Eng 13, 395–406 (2022). https://doi.org/10.1007/s40095-021-00429-6

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