Research Article Open Access

Modeling of Nitric Oxide Formation in Single Cylinder Direct Injection Diesel Engine Using Diesel-Water Emulsion

K. Kannan1 and M. Udayakumar1
  • 1 ,
American Journal of Applied Sciences
Volume 6 No. 7, 2009, 1313-1320

DOI: https://doi.org/10.3844/ajassp.2009.1313.1320

Submitted On: 6 February 2009 Published On: 31 July 2009

How to Cite: Kannan, K. & Udayakumar, M. (2009). Modeling of Nitric Oxide Formation in Single Cylinder Direct Injection Diesel Engine Using Diesel-Water Emulsion. American Journal of Applied Sciences, 6(7), 1313-1320. https://doi.org/10.3844/ajassp.2009.1313.1320

Abstract

Problem statement: Water injection into the combustion chamber of diesel engine found to be one of best method for in-cylinder control of NOx formation. Approach: The combustion of water-diesel emulsion in diesel engine was simulated using a computer program to estimate the heat release rate, cylinder pressure, brake thermal efficiency, brake specific fuel consumption and NO formation. Results: The numerical simulation was performed at different equivalence ratios, engine speeds and water percentages. The numerical simulation was preferred to study the combustion behavior and emission of diesel engine because the experimental investigations were time consuming and costly affair. Conclusion/Recommendations: Experiments also conducted to validate the predicted results of computer simulation. Though the zero dimensional simulation models predicted NO formation during combustion process, the first appearance of NO could not be identified using this method which can be solved by CFD technique.

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Keywords

  • Diesel engine
  • emulsion
  • micro-explosion
  • heat release rate
  • nitric oxide emission