A Study on the Effect of Squish Area on Engine Performance of Single Cylinder Natural Gas Converted Engine
Main Article Content
Abstract
Today, the prices of fossil fuels such as gasoline and diesel are skyrocketing, oil depletion and air pollution are major challenges for us and the auto industry in particular. Natural gas has known as a potential alternative fuel of internal combustion engines because of its advantages such as the research octane number is higher than that of gasoline, the low heat value is higher in comparison with gasoline and diesel, the safety in use. This paper presents a study on the influence of squish area on engine performance of single cylinder natural gas converted engine. The obtained results indicated that the increase of compression ratio only augmented the risk of knocking for single cylinder natural gas converted engine. Conversely, the modification of bowl-in-piston is directly varied squish area, thus the turbulent kinetic energy of the gas flows at the end of the compression stroke increased in comparison with the flat head piston of the original engine.
Keywords
Natural gas, Piston geometry, Engine performance, Converted engine
Article Details
References
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[12] Young-Wook Chin, Ronald Douglas Matthews, Steven P. Nichols, Thomas M. Kiehne, Use of fractal geometry to model turbulent combustion in SI engines, Combustion Science and Technology, 1992, Vol. 86, no. 1-6, pp. 1-30. https://doi.org/10.1080/00102209208947185
[2] Muhammad ImranKhan, TabassumYasmin, Abdul Shakoor, Technical overview of compressed natural gas (CNG) as a transportation fuel, Renewable and Sustainable Energy Reviews, Vol. 51, November 2015, pp. 785-797.
[3] Busch, S., Zha, K., Perini, F., Reitz, R. et al., Bowl Geometry Effects on Turbulent Flow Structure in a Direct Injection Diesel Engine, SAE Technical Paper 2018-01-1794, 2018.
[4] Barbouchi, Z & Bessrour, Jamel. (2021). Turbulence study in the internal combustio engine. Journal of Engineering and Technology Research Vol.1 (9), pp. 194-202, December, 2009, Available online at http://www.academicjournals.org/jetr
[5] Bhasker, Pradeep, Krishnaiah, Ravi, E, Porpatham. Krishnaiah, R., Ekambaram, P., Jayapaul, P., Investigations on the effect of Piston Squish Area on Performance and Emission Characteristics of LPG fuelled Lean Burn SI Engine, SAE Technical Paper 2016-28-0123, 2016. https://doi.org/10.4271/2016-28-0123
[6] Chauhan Bhupendra Singh & Cho, Haeng-Muk., A study on experiment of CNG as a clean fuel for automobiles in korea, Journal of Korean Society for Atmospheric Environment, 2010 https://doi.org/10.5572/kosae.2010.26.5.469
[7] Dass, Jeevan, Lakshminarayanan, P A., Conversion of Diesel Engines for CNG Fuel Operation. In book: Design and Development of Heavy Duty Diesel Engines, 2020, pp.341-392 https://doi.org/10.1007/978-981-15-0970-4_9
[8] James Sevik, Michael Pamminger, Thomas Wallner, Riccardo Scarcelli, Steven Wooldridge, Brad Boyer, Scott Miers, Carrie Hall, Influence of charge motion and compression ratio on the performance of a combustion concept employing in-cylinder gasoline and natural gas blending, Journal of Engineering for Gas Turbines and Power, December 2018, Vol. 140/121501-1 https://doi.org/10.1115/1.4040090
[9] Krishna, R S., Conversion of diesel engine to CNG engine of commercial vehicles and emission control, International Journal of Mechanical and Production Engineering, ISSN(p): 2320-2092, ISSN(e): 2321-2071 Volume- 6, Issue-11, Nov.-2018, https://doi.org/10.13140/rg.2.2.34701.49125
[10] Lee, K.H., Lee, C.S., Effects of tumble and swirl flows on turbulence scale near top dead centre in a four-valve spark ignition engine, Proceedings of the Institution of Mechanical Engineers Part D, Journal of Automobile Engineering, January 2005, 217(7), pp. 607-615 https://doi.org/10.1243/095440703322114988
[11] Muhammad ImranKhan, Tabassam Yasmeen, Muhamma Ijaz Khan, Muhammad Farooq, Muhammad Wakeel, Research progress in the development of natural gas as fuel for road vehicles: A bibliographic review (1991–2016), Renewable and Sustainable Energy Reviews, Vol. 66, December 2016, pp. 702-741. https://doi.org/10.1016/j.rser.2016.08.041
[12] Young-Wook Chin, Ronald Douglas Matthews, Steven P. Nichols, Thomas M. Kiehne, Use of fractal geometry to model turbulent combustion in SI engines, Combustion Science and Technology, 1992, Vol. 86, no. 1-6, pp. 1-30. https://doi.org/10.1080/00102209208947185