Optimizing the Quantity of Diesel Fuel Injection by Using 25HHOCNG Gas Fuel Mixture


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Injection behaviors of internal combustion engines are very substantial fact that provides developments to future strategies about optimizing the engine and fuel parameters. During the combustion process, pilot diesel injection technique is more preferable option while using alternative gas fuels in a diesel engine. In this experimental study, a 3.6 L commercial, four stroke, four cylinders and mechanical fuel pump non-modified diesel test engine operated with hydroxy (HHO) and compressed natural gas (CNG) fuel mixtures under 25% and 75% (vol/vol), respectively. Diesel fuel injection quantities were reduced with the help of steeping motor devices which mounted on mechanical fuel pump plunger pin. Sensitive removes of steeping motor, plunger pin twisted clockwise 360°, 720° and 1080°, respectively. Comparisons of engine performance and exhaust emissions were explained briefly and illustrated via graphs. As a result, 720° clockwise twisted pin is the optimum point for experimental fuel pump plunger while using 25HHOCNG fuel mixtures.






H.̇n T. Arat et al., "Optimizing the Quantity of Diesel Fuel Injection by Using 25HHOCNG Gas Fuel Mixture", Advanced Engineering Forum, Vol. 14, pp. 36-45, 2016

Online since:

October 2015




* - Corresponding Author

[1] Mansor W. N. W. (2014). Dual Fuel Engine Combustion and Emissions – An Experimental Investigation Coupled With Computer Simulation, PhD Thesis, Colorado State University.

[2] Smallwood, J.S., (2013). Investigation of the Dual-Fuel Conversion of a Direct Injection Diesel Engine, MSc thesis, West Virginia University.

[3] Chengke L., (2006). An Experimental and Analytical Investigation into the Combustion Characteristics of HCCI and Dual Fuel Engines with Pilot Injection, PhD Thesis, University of Calgary.

[4] Mtui P. and Hill, P., (1996). Ignition Delay and Combustion Duration with Natural Gas Fueling of Diesel Engines, SAE Technical Paper 9, 61933.

DOI: https://doi.org/10.4271/961933

[5] Miyake M., Biwa T., Endoh Y., Shimotsu M., Murakami S., Komoda T., (1983). The development of high output, highly efficient gas burning diesel engines. 15th CIMAC Conference Proceedings; A2: 1193–1216.

[6] Langness C. N., (2014). Effects of Natural Gas Constituents on Engine Performance, Emissions, and Combustion in Compressed Natural Gas-Assisted Diesel Combustion, MSc Thesis, University of Kansas.

[7] Guerry E.S., (2014). Injection timing effects of diesel-ignited methane dual fuel combustion in a single cylinder research engine, MSc Thesis, Mississippi State University.

[8] Arat H.T., Baltacıoğlu M., Ozcanlı M., Aydın K., (2015). Effect of using hydroxy-cng fuel mixturesin a non-modified diesel engine by substitution of diesel fuel. 6th International Conference on Hydrogen Production; 1: 423–430.

DOI: https://doi.org/10.1016/j.ijhydene.2015.11.183

[9] Henein N., Lai M., Singh I., Zhong L. et al., (2002). Characteristics of a Common Rail Diesel Injection System under Pilot and Post Injection Modes. SAE Technical Paper 2002-01-0218.

DOI: https://doi.org/10.4271/2002-01-0218

[10] Tangoz S, et al., (2015), Effects of compression ratio on performance and emissions of a modified diesel engine fueled by HCNG, International Journal of Hydrogen Energy http: /dx. doi. org/10. 1016/j. ijhydene. 2015. 02. 058.

DOI: https://doi.org/10.1016/j.ijhydene.2015.02.058

[11] Liu J. , Zhang X , Wang T , Zhang J , Wang H., (2015). Experimental and numerical study of the pollution formation in a diesel/CNG dual fuel engine. Fuel; 159: 418–429.

DOI: https://doi.org/10.1016/j.fuel.2015.07.003

[12] Hora T.S., Agarwal A. K, (2015). Experimental study of the composition of hydrogen enriched compressed natural gas on engine performance, combustion and emission characteristics, Fuel; 160: 470–478.

DOI: https://doi.org/10.1016/j.fuel.2015.07.078

[13] Pichayapat K., Sukchai S., Thongsan S., Pongtornkulpanich A. (2014).