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Numerical Investigation of Dual-Fuel Engine Improvements Using Split Injection Natural Gas Coupled with Diesel Injection Timings at Low Load Condition

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The dual-fuel engine improvements using natural gas and diesel fuels are attractively conducted in recent years to overcome the emissions issues with high engine performance. Unfortunately, the dual-fuel engine has low combustion characteristics and forms high HC emissions at low load conditions. This study optimizes engine combustion and emissions with some diesel injection configurations with split injection natural gas strategies. However, the natural gas split injection is used in several dwelling times with proportional split injection ratios. Numerical works are conducted for this study with various validation data. The results found that long dwelling time with retarding diesel injection timing performs the optimum condition for the combustion characteristics. The ITE is higher than the other dwelling times with lower peak cylinder pressure. HC and CO emissions are improved with slightly higher NOx emissions with fewer differences than the other dwelling times.
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Diesel; Dual-Fuel; Emissions; Mixture; Natural Gas; Split Injection

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Santoso, A., Semin, S., Sampurno, B., Cahyono, B., Zaman, M., New Development of Piston Crown for Dual Fuel Diesel Engine to Improve Efficiency and Reduce NOx Emissions: a Review, (2020) International Journal on Engineering Applications (IREA), 8 (1), pp. 1-7.

A. Yousefi, H. Guo, M. Birouk, Effect of Diesel Injection Timing on The Combustion of Natural Gas/Diesel Dual-Fuel Engine At Low-High Load and Low-High Speed Conditions, Fuel, vol. 235. 2019, pp. 838–846.

A. Jain, A. P. Singh, A. K. Agarwal, Effect of Split Fuel Injection And EGR on Nox And PM Emission Reduction in A Low Temperature Combustion (LTC) Mode Diesel Engine, Energy, vol. 122, March 2017. pp. 249–264.

Y. Li, H. Li, H. Guo, Y. Li, M. Yao, A Numerical Investigation on Methane Combustion and Emissions from A Natural Gas-Diesel Dual Fuel Engine Using CFD Model, Applied Energy, vol. 205, November 2017, pp. 153–162.

H. Park, E. Shim, C. Bae, Injection Strategy in Natural Gas–Diesel Dual-Fuel Premixed Charge Compression Ignition Combustion under Low Load Conditions, Engineering, vol. 194, May 2019, pp. 186-198.

H. Huang, Z. Zhu, Y. Chen, Y. Chen, D. Lv, J. Zhu, T. Ouyang, Experimental and Numerical Study of Multiple Injection Effects on Combustion and Emission Characteristics of Natural Gas–Diesel Dual-Fuel Engine, Energy Conversion and Management, vol. 183, March 2019, pp. 84–96.

S. A. Ahmed, S. Zhou, Y. Zhu, Y. Feng, Performance and Emission Characteristics Analysis of Dual Fuel Compression Ignition Engine Using Natural Gas and Diesel, International Journal of Thermodynamics, vol. 21, no. 1, 2018, pp. 16–25.

J. Liu, J. Wang, H. Zhao, Optimization of the Combustion Chamber and Fuel Injection of a Diesel/Natural Gas Dual Fuel Engine, Energy Procedia, vol. 158, February 2019, pp. 1418–1424.

J. You, Z. Liu, Z. Wang, D. Wang, Y. Xu, Impact of Natural Gas Injection Strategies on Combustion and Emissions of a Dual Fuel Natural Gas Engine Ignited with Diesel at Low Loads, Fuel, vol. 260, January 2020, p. 116414.

H. Huang, D. Lv, J. Zhu, Y. Chen, Y. Pan, M. Pan, Development of a New Reduced Diesel/Natural Gas Mechanism for Dual-Fuel Engine Combustion and Emission Prediction, Fuel, vol. 236, January 2019, pp. 30–42.

J. Shu, J. Fu, J. Liu, L. Zhang, Z. Zhao, Experimental and Computational Study on the Effects of Injection Timing on Thermodynamics, Combustion and Emission Characteristics of a Natural Gas (NG)-Diesel Dual Fuel Engine at Low Speed and Low Load, Energy Conversion and Management, vol. 160, March 2018, pp. 426–438.

A. Yousefi, H. Guo, M. Birouk, B. Liko, On Greenhouse Gas Emissions and Thermal Efficiency of Natural Gas/Diesel Dual-Fuel Engine at Low Load Conditions: Coupled Effect of Injector Rail Pressure and Split Injection, Applied Energy, vol. 242, May 2019, pp. 216–231.

D. Yuvenda, B. Sudarmanta, A. Wahjudi, O. Muraza, Improved Combustion Performances and Lowered Emissions of CNG-Diesel Dual Fuel Engine Under Low Load by Optimizing CNG Injection Parameters, Fuel, vol. 269, June 2020, p. 117202.

Felayati, F., Semin, S., Cahyono, B., Bakar, R., Investigation of the Effect of Natural Gas Injection Timing on Dual-Fuel Engine Emissions Using Split Injection Strategies, (2019) International Review of Mechanical Engineering (IREME), 13 (11), pp. 645-654.

M. Gamma Technology, GT Power Manual. 2012.

F. M. Felayati, Semin, M. B. Zaman, A. P. Gusti, Consideration of Split Injection Strategy for Marine Diesel Engine Combustion Process, AIP Conference Proceedings, vol. 2088, no. 030021, March 2019, pp. 1-5.

R. Sindhu, G. Amba Prasad Rao, K. Madhu Murthy, Effective Reduction of NOx Emissions from Diesel Engine Using Split Injections, Alexandria Engineering Journal, vol. 57, no. 3, September 2018, pp. 1379–1392.

M. Kassa, T. Leroy, A. Robert, F. Vidal-Naquet, Analysis of In-Cylinder Pressure Oscillation and Its Effect on Wall Heat Transfer, International Journal of Engine Research, July 2020, p. 1468087420932364.

B. Henke, K. Schleef, B. Buchholz, S. Andree, E. Hassel, M. Hoff, R. Graumuller, Pilot Injection Strategies for Medium-Speed Dual Fuel Engines,- Heavy-Duty-, On- und Off-Highway-Motoren 2017, 2018, pp. 115–135.

P. Sharma, A. Dhar, Compression Ratio Influence on Combustion and Emissions Characteristic of Hydrogen Diesel Dual Fuel CI Engine: Numerical Study, Fuel, vol. 222, June 2018, pp. 852–858.

Semin, S., Felayati, F., Cahyono, B., Zaman, M., Improvement Approaches for the Combustion Process of Recent Diesel Natural Gas Dual Fuel Engines – A Technical Review, (2019) International Review of Mechanical Engineering (IREME), 13 (3), pp. 198-202.

Y. Chen, Z. Zhu, Y. Chen, H. Huang, Z. Zhu, D. Lv, M. Pan, X. Guo, Study of Injection Pressure Couple with EGR on Combustion Performance and Emissions of Natural Gas-Diesel Dual-Fuel Engine, Fuel, vol. 261, February 2020, p. 116409.

J. Cho, S. Park, S. Song, The Effects of the Air-Fuel Ratio on A Stationary Diesel Engine under Dual-Fuel Conditions and Multi-Objective Optimization, Energy, vol. 187, November 2019, p. 115884.

V. D. Chaudhari, D. Deshmukh, Diesel and Diesel-Gasoline Fuelled Premixed Low Temperature Combustion (LTC) Engine Mode for Clean Combustion, Fuel, vol. 266, April 2020, p. 116982.


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