0/1 Dimensional Simulation of Combustion Timing Effects on Performance and Emissions in a Methane-Hydrogen Fueled Engine

Year 2025, Volume: 9 Issue: 1, 114 - 120, 31.03.2025

Fatih Aktaş , Yaşarata Korkmaz , Gonca Kethudaoglu

https://doi.org/10.30939/ijastech..1630842

Abstract

Natural gas has gained attention as a promising alternative fuel to reduce emissions and reliance on petroleum-based fuels. However, its combustion limitations, such as a low lean air-fuel mixture limit and high ignition energy requirements, can be improved by adding hydrogen. This study aims to address these limitations and investigate how adding hydrogen can improve the combustion properties of natural gas. In this study, a 3-cylinder diesel heavy-duty engine with a compression ratio of 17.5:1 was converted to a spark-ignition engine using natural gas with 10% hydrogen by mass. The effects of different start of combustion (SOC) timings (0°, -5°, -10°, -15°, and -20° CA) on engine performance and emissions were analyzed under full-load conditions at 2300 rpm using a 0/1-dimensional combustion simulation program. The best SOC timing was -5° CA, producing the highest brake power (BP) of (78.8 kW) and lowest brake specific fuel consumption(BSFC) of (168.37 g/kWh), improving brake power (BP by 1.18% and reducing (BSFC) by 1.42% compared to the baseline. SOC timings of -5° and -10° CA are operated safely without knocking, with maximum pressure rise rate (MPRR) values of 0.61 MPa/°CA and 0.87 MPa/°CA, respectively, while 15° and -20° CA exceeded the knock limit of 1 MPa/°CA. Advancing SOC to -20° CA increased nitrogen oxides (NOX) emissions by 1.52 times due to higher in-cylinder temperatures. These results demonstrate that optimizing SOC timing and incorporating hydrogen into methane can enhance engine performance while managing emissions and avoiding knock, contributing to the development of sustainable fuel technologies. Careful calibration of SOC is necessary to avoid damaging components while maximizing performance.

Keywords

Alternative fuels, ; Engine performance, Hydrogen enriched-CNG fuel, Start of combustion

References

• [1] Towoju O. Performance Optimization of Compression Ignition Engines: A Review. Engineering Perspective 2022;2:21–7. https://doi.org/10.29228/eng.pers.63291
• [2] Algayyim SJM, Saleh K, Wandel AP, Fattah IMR, Yusaf T, Alrazen HA. Influence of natural gas and hydrogen properties on internal combustion engine performance, combustion, and emissions: A review. Fuel 2024;362:130844.https://doi.org/10.1016/j.fuel.2023.130844
• [3] Bakkaloglu S, Hawkes A. A comparative study of biogas and biomethane with natural gas and hydrogen alternatives. Energy Environ Sci 2024;17:1482–96. https://doi.org/10.1039/d3ee02516k
• [4] Yasar MF, Ergen G, Cesur I. Investigating the Use of Methane as an Alternative Fuel in Diesel Engines: A Numerical Approach. International Journal of Automotive Science and Technology 2023;7:349–59. https://doi.org/10.30939/ijastech..1333612
• [5] Dam QT. Modeling and simulation of an Internal Combustion Engine using Hydrogen: A MATLAB implementation approach. Engineering Perspective 2024;3:108–18. https://doi.org/10.29228/eng.pers.76219
• [6] Liang F-Y, Ryvak M, Sayeed S, Zhao N. The role of natural gas as a primary fuel in the near future, including comparisons of acquisition, transmission and waste handling costs of as with competitive alternatives. Chem Cent J 2012;6:S4. https://doi.org/10.1186/1752-153X-6-S1-S4
• [7] IEA , The Role of Gas in Today’s Energy Transitions, IEA, Paris 2019
• [8] Klell M, Eichlseder H, Sartory M. Mixtures of hydrogen and methane in the internal combustion engine-Synergies, potential and regulations. Int J Hydrogen Energy 2012;37:11531–40. https://doi.org/10.1016/j.ijhydene.2012.03.067
• [9] Verma G, Prasad RK, Agarwal RA, Jain S, Agarwal AK. Experimental investigations of combustion, performance and emission characteristics of a hydrogen enriched natural gas fuelled prototype spark ignition engine. Fuel 2016;178:209–17. https://doi.org/10.1016/j.fuel.2016.03.022
• [10] Aktas F. Performance and emission prediction of hydrogen addition to natural gas powered engine using 0/1 dimensional thermodynamic simulation. Int J Energy Studies 2022;7:67–81.
• [11] Verhelst S. Recent progress in the use of hydrogen as a fuel for internal combustion engines. Int J Hydrogen Energy 2014;39:1071–85. https://doi.org/10.1016/j.ijhydene.2013.10.102
• [12] Aktas F. Numerical Investigation of Equivalence Ratio Effects on a Converted Diesel Engine Using Natural Gas. J Energy Resour Technol 2022;144:092305. https://doi.org/10.1115/1.4054404
• [13] AKTAŞ F. A 0/1-Dimensional Numerical Analysis of Performance and Emission Characteristics of the Conversion of Heavy-Duty Diesel Engine to Spark-Ignition Natural Gas Engine. International Journal of Automotive Science and Technology 2022;6:1–8. https://doi.org/10.30939/ijastech..980338
• [14] Aktas F. Spark ignition timing effects on a converted diesel engine using natural gas: A numerical study. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 2022;236:1949–63. https://doi.org/10.1177/09544070221081671
• [15] Aktas F. Three-Dimensional Computational Fluid Dynamics Simulation and Mesh Size Effect of the Conversion of a Heavy-Duty Diesel Engine to Spark-Ignition Natural Gas Engine. J Eng Gas Turbine Power 2022;144. https://doi.org/10.1115/1.4053717
• [16] Aktas F, Karyeyen S. Colorless distributed combustion (CDC) effects on a converted spark-ignition natural gas engine. Fuel 2022;317:123521. https://doi.org/10.1016/j.fuel.2022.123521
• [17] Liu J, Dumitrescu CE. Single and double Wiebe function combustion model for a heavy-duty diesel engine retrofitted to natural-gas spark-ignition. Appl Energy 2019;248:95–103. https://doi.org/10.1016/j.apenergy.2019.04.098
• [18] McTaggart-Cowan GP, Rogak SN, Munshi SR, Hill PG, Bushe WK. Combustion in a heavy-duty direct-injection engine using hydrogen-methane blend fuels. International Journal of Engine Research 2009;10:1–13. https://doi.org/10.1243/14680874JER02008
• [19] De Simio L, Iannaccone S, Guido C, Napolitano P, Maiello A. Natural Gas/Hydrogen blends for heavy-duty spark ignition engines: Performance and emissions analysis. Int J Hydrogen Energy 2024;50:743–57. https://doi.org/10.1016/j.ijhydene.2023.06.194
• [20] Bhasker JP, Porpatham E. Effects of compression ratio and hydrogen addition on lean combustion characteristics and emission formation in a Compressed Natural Gas fuelled spark ignition engine. Fuel 2017;208:260–70. https://doi.org/10.1016/j.fuel.2017.07.024
• [21] Aktas Fatih. Numerical investigation of the effects of the use of propane-diesel as a dual fuel in a diesel engine on the combustion regime, engine performance and emission values. PhD Thesis. Gazi University, 2021.
• [22] AKTAŞ F. A 0/1-Dimensional Numerical Analysis of Performance and Emission Characteristics of the Conversion of Heavy-Duty Diesel Engine to Spark-Ignition Natural Gas Engine. International Journal of Automotive Science and Technology 2022;6:1–8. https://doi.org/10.30939/ijastech..980338
• [23] Aktaş F, Yücel N. Investigation of the effects of propane usage at different ratios and start of combustion time on performance, emission, and in-cylinder combustion characteristics in converting a diesel engine to a reactivity-controlled compression ignition. Journal of the Faculty of Engineering and Architecture of Gazi University 2024;39:785–96. https://doi.org/10.17341/gazimmfd.1193551
• [24] Yang F, Yao C, Wang J, Ouyang M. Load expansion of a dieseline compression ignition engine with multi-mode combustion. Fuel 2016;171:5–17. https://doi.org/10.1016/j.fuel.2015.12.046
• [25] Chu S, Lee J, Kang J, Lee Y, Min K. High load expansion with low emissions and the pressure rise rate by dual-fuel combustion. Appl Therm Eng 2018;144:437–43. https://doi.org/10.1016/j.applthermaleng.2018.08.027
• [26] Kim K, Wang Z, Wang B, Shuai S, Yang H, Bae C. Load expansion of naphtha multiple premixed compression ignition (MPCI) and comparison with partially premixed compression ignition (PPCI) and conventional diesel combustion (CDC). Fuel 2014;136:1–9. https://doi.org/10.1016/j.fuel.2014.07.030
• [27] Curran S, Hanson R, Wagner R, Reitz R. Efficiency and emissions mapping of RCCI in a light-duty diesel engine. SAE Technical Papers, vol. 2, SAE International; 2013. https://doi.org/10.4271/2013-01-0289
• [28] Chen G, Kong W, Zhu W, Peng Y, Li Y, Yang S. Study on the impacts of injection parameters on knocking in HPDI natural gas engine at different combustion modes. Energy 2024;310. https://doi.org/10.1016/j.energy.2024.133278
• [29] Polat S, Serdar Yücesu H, Kannan K, Uyumaz A, Solmaz H, Shahbakhti M. Experimental Comparison of Different Injection Timings in an HCCI Engine Fueled with N-Heptane. International Journal of Automotive Science and Technology 2017;1:1–6. https://doi.org/https://doi.org/10.30939/ijastech..288015
• [30] Lim G, Lee S, Park C, Choi Y, Kim C. Effect of ignition timing retard strategy on NOx reduction in hydrogen-compressed natural gas blend engine with increased compression ratio. Int J Hydrogen Energy 2014;39:2399–408. https://doi.org/10.1016/j.ijhydene.2013.11.131
• [31] Properties and Selection: Irons, Steels, and High-Performance Alloys. ASM International; 1990. https://doi.org/10.31399/asm.hb.v01.9781627081610
• [32] Pierce D, Haynes A, Hughes J, Graves R, Maziasz P, Muralidharan G, et al. High temperature materials for heavy duty diesel engines: Historical and future trends. Prog Mater Sci 2019;103:109–79. https://doi.org/10.1016/j.pmatsci.2018.10.004
• [33] Megel M, Westmoreland B, Jones G, Phillips F, Eberle D, Tussing M, et al. Development of a structurally optimized heavy duty diesel cylinder head design capable of 250 bar peak cylinder pressure operation. SAE Int J Engines 2011;4:2736–55. https://doi.org/10.4271/2011-01-2232
• [34] Lim G, Lee S, Park C, Choi Y, Kim C. Effect of ignition timing retard strategy on NOx reduction in hydrogen-compressed natural gas blend engine with increased compression ratio. Int J Hydrogen Energy 2014;39. https://doi.org/10.1016/j.ijhydene.2013.11.131
• [35] Hu E, Huang Z. Optimization on ignition timing and EGR ratio of a spark-ignition engine fuelled with natural gas-hydrogen blends. SAE 2011 World Congress and Exhibition, 2011. https://doi.org/10.4271/2011-01-0918