THERMAL SCIENCE

International Scientific Journal

EFFECT OF STEAM INJECTION ON NOX EMISSIONS AND PERFORMANCE OF A SINGLE CYLINDER DIESEL ENGINE FUELLED WITH SOY METHYL ESTER

ABSTRACT
Biodiesel attracts most of the researchers and automotive industries in recent years as an alternative fuel for diesel engines, because of its better lubricity property, higher cetane number, and less greenhouse gas emissions. The use of bio diesel leads to reduction in hydro carbons, carbon monoxide, and particulate matter, but increase in NOx emissions. Increase in biodiesel blends in standard diesel leads to increase in NOx emission. In this study, an attempt is made to reduce the NOx emissions of a diesel engine fueled with pure soy methyl ester (B100) with low pressure steam injection. Experiments were carried out and studied for both standard diesel and pure biodiesel of soy methyl ester with steam injection ratio of 5, 10, and 15% on mass ratio basis of air in the inlet manifold. The present study has shown that around 30% reduction in NOx can be achieved for the steam injection rate of 10% and considerable reduction for all other steam injection rates when compared to standard diesel and B100. It is also observed that steam injection having significant impact on reduction of other emissions such as HC, CO, and CO2. The study also noted marginal improvement in the engine brake power, brake thermal efficiency and reduction in specific fuel consumption at part loads and minor increase during peak load operation for the low pressure steam injection on B100.
KEYWORDS
PAPER SUBMITTED: 2017-03-16
PAPER REVISED: 2017-05-15
PAPER ACCEPTED: 2017-06-16
PUBLISHED ONLINE: 2017-12-16
DOI REFERENCE: https://doi.org/10.2298/TSCI17S2473M
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2017, VOLUME 21, ISSUE Supplement 2, PAGES [S473 - S479]
REFERENCES
  1. Adnan, R., et al., Performance and Emission Analysis of Hydrogen Fueled Compression Ignition Engine with Variable Water Injection Timing, Energy, 43 (2012), 1, pp. 416-426
  2. Xue, J., et al., Effect of Biodiesel on Engine Perfomances and Emissions. Renewable and Sustainable Energy Reviews, 15 (2011), 2, pp. 1098-1116
  3. Demirbas, A., Importance of Biodiesel as Transportation Fuel, Energy Policy, 35 (2007), 9, pp. 4661-4670
  4. ***, Global Soybean Production, www.globalsoybeanproduction.com
  5. Hoekman, S. K., Robbins, C., Review of the Effects of Biodiesel on NOx Emissions, Fuel Processing Technology, 96 (2012), Apr., pp. 237-249
  6. Piramanandhan, M., et al., Performance and Emission Characteristics of Diesel Engine Fuelled with Sunflower Bio Diesel, International Journal of Applied Environmental Sciences, 11 (2016), 1, pp. 267-277
  7. Ganesh, S. R., et al., Performance, Emission and Combustion Characteristics of a Diesel Engine Using Grape Seed Oil Methyl Ester-Based Fuels, International Journal of Applied Engineering Research, 10 (2011), 13, pp. 9839-9856
  8. Boretti, A., Water Injection in Directly Injected Turbocharged Spark Ignition Engines, Applied Thermal Engineering, 52 (2013), 1, pp. 62-68
  9. Tauzia, X., et al., Experimental Study of Inlet Manifold Water Injection on Combustion and Emissions of an Automotive Direct Injection Diesel Engine, Energy, 35 (2010), 9, pp. 3628-3639
  10. Kokkulunk, G., et al., Theoretical and Experimental Investigation of Diesel Engine with Steam Injection System on Performance and Emission Parameters, Applied Thermal Engineering, 54 (2013), pp. 161-170
  11. Mello, J. P., Mellor, A. M., NOx Emissions from Direct Injection Diesel Engines with Water/Steam Di-lution, SAE J. Automot. Eng. (1999), pp. 01- 0836
  12. Patnaik, P. P., et al., Experimental Investigation on CI Engine Performance Using Steam Injection and Ferric Chloride as Catalyst, Engineering Science and Technology, an International Journal, 19 (2016), 4, pp. 2073-2080
  13. Madhavan, V. M., Senthilkumar, D., Experimental Investigation of NOx Emission on a Single Cylinder Diesel Engine Using Low Pressure Steam Injection, Advances in Natural and Applied Sciences, 10 (2016), special 7, pp. 220-226
  14. Heywood, J. B., Internal Combustion Engine Fundamentals, McGraw-Hill Inc., New York, USA, 1998

© 2019 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence