International Scientific Journal


This research work investigates the use of neat paradise tree oil in a 4-stroke natural aspirated direct injection compression ignition engine assisted with the help of super-heated hydrogen (hydrogen in gaseous state or above its saturation temperature) as a combustion improver. The high calorific gaseous fuel hydrogen gas was used as a combustion improver and admitted into the engine during the suction stroke. A 4-stroke single cylinder Diesel engine was chosen and its operating parameters were suitably modified. Neat paradise tree oil was admitted through standard injector of the engine and hydrogen was admitted through induction manifold. Inducted super-heated hydrogen was initiated the intermediate compounds combustion of neat paradise tree oil. This process offers higher temperature combustion and results in complete combustion of heavier molecules of neat paradise tree oil within shorter duration. The results of the experiment reveal that 40% higher NOx, 20% lower smoke, 5% lower CO, and 45% lower HC than that of neat paradise tree oil fuel operation and the admission of superheated hydrogen has improved the combustion characteristics of neat paradise tree oil. The investigation successfully proved that the application of neat paradise tree oil with 15% of hydrogen improver is possible under a regular Diesel engine with minimal engine modification.
PAPER REVISED: 2016-01-12
PAPER ACCEPTED: 2016-02-04
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THERMAL SCIENCE YEAR 2016, VOLUME 20, ISSUE Supplement 4, PAGES [S1137 - S1144]
  1. Avinash, K. A., Rajamanoharan, K., Experimental Investigations of Performance and Emissions of Karanja Oil and Its Blends in a Single Cylinder Agricultural Diesel Engine, Appl. Energy, 86 (2009), 1, pp. 106-112
  2. Hossein, H., et al., Grey Relational Analysis to Determine the Optimum Process Parameters for Open-End Spinning Yarns, Journal of Engineered Fibers and Fabrics, 7 (2012), 2 , pp. 81-86
  3. Kalam, M. A., et al., Exhaust Emission and Combustion Evaluation of Coconut Oil-Powered Indirect Injection Diesel Engine, Renewable Energy, 28 (2003), 15, pp. 2405-2415
  4. Deepak, A., Avinash, K. A., Performance and Emission Characteristics of Jatropha Oil (Preheated and Blends) in a Direct Injection Compression Ignition, Applied Thermal Engineering, 27 (2007), 13, pp. 2314-2323
  5. Elango, T., Senthilkumar, T., Performance and Emission Characteristics of CI Engine Fuelled with Non Edible Vegetable Oil and Diesel Blends, Journal of Engineering Science and Technology, 6 (2011), 2, pp. 240-250
  6. Hazar, H., Aydin, H., Performance and Emission Evaluation of a CI Engine Fuelled with Preheated Raw Rapeseed Oil (RRO)-Diesel Blends, Appl. Energy, 87 (2010), 3, pp. 786-790
  7. Babu, A. K ., Devaradjane, G., Vegetable Oils and Their Derivatives as Fuels for CI Engines: An Overview. SAE Technical paper 2003-01-0767, 2003
  8. Agarwal, D., Agarwal, A. K., Performance and Emissions Characteristics of Jatropha Oil (Preheated and Blends) in a Direct Injection Compression Ignition Engine, Appl. Therm. Eng., 27 (2007), 13, pp. 2314-2323
  9. Chauhan, B. S., et al., Performance and Emission Study of Preheated Jatropha Oil on Medium Capacity Diesel Engine, Energy, 35 (2010), 6, pp. 2484 - 2492
  10. Cheng, C. H., et al., Comparison of Emissions of a Direct Injection Diesel Engine Operating on Biodiesel with Emulsified and Fumigated Methanol, Fuel, 87 (2008), 10-11, pp. 1870-1879
  11. Deepanraj, B., et al., Performance and Emission Characteristics of Diesel Engine Fuelled with Rice Bran Oil Methyl Ester Blends, Daffodil University Journal Science and Technology, 7 (2012), 2, pp. 51-55
  12. Karthikayan, S., Sankaranarayanan, G., Influence of Engine Parameters Optimization in the Neat Non-Edible Oil + LSD Fuel Combustion Analysis: Measurement of Cylinder Pressure and Heat Release at Various Loads, International Journal of Applied Engineering Research, 9 (2014), 22, pp. 12741-12756
  13. He, Y., Bao, Y. D., Study on Cottonseed Oil as a Partial Substitute for Diesel Oil in Fuel for Single-Cylinder Diesel Engine, Renewable Energy, 30 (2005), 5, pp. 805-813
  14. Yilmaz, N., Morton, B., Effects of Preheating Vegetable Oils on Performance and Emission Characteristics of Diesel Engines, Biomass and Bioenergy, 35 (2011), 5, pp. 2028-2033
  15. Karthikayan, S, Sankaranarayanan, G., Study of Air Intake System of Turbo Charged Diesel Engines, Proceedings, Frontiers in Automobile and Mechanical Engineering, Chennai, India, 2010, pp. 175-178
  16. Senthil, K. M., et al., Use of Hydrogen to Enhance the Performance of a Vegetable Oil Fuelled Compression Ignition Engine, Int. J. Hydrogen Energy, 28 (2003), 10, pp. 1143-1154
  17. Shahid, E. M., Jamal, Y., Production of Biodiesel: A Technical Review, Renewable and Sustainable Energy Reviews, 15 (2011), 9, pp. 4732-4745
  18. Banapurmath, N. R., et al., Performance and Emission Characteristics of a DI Compression Ignition Engine Operated on Honge, Jatropha and Sesame Oil Methyl Ester, Renewable Energy, 33 (2008), 9, pp. 1982-1988
  19. Sukumar, P. N., et al., Performance and Emission Study of Mahua Oil (Madhuca Indica Oil) Ethyl Ester in a 4-Stroke Natural Aspirated Direct Injection Diesel Engine, Renewable Energy, 30 (2005), 8, pp. 1269-1278
  20. Suryawanshi, J. G., Deshpandel, N., Experimental Investigation on a Pongamia Oil Methyl Ester Fuelled Diesel Engine, SAE paper 2004-28-008, 2004
  21. ***,
  22. Saravanan, N., Nagarajan, G., Performance and Emission Studies on Port Injection of Hydrogen with Varied Flow Rates with Diesel as an Ignition Source, Applied Energy, 87 (2010), 7, pp. 2218-2229
  23. Sankaranarayanan., et al., Performance and Emission Studies on DI Diesel Engine Using Madhuca Indica Oil and Hydrogen as Dual Fuel, Proceedings, 19th National Conference on I. C. Engines and Combustion, Annamalai University, Chidambaram, Tamil Nadu, India, 2005, Vol. 1, pp. 83-86

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