Performance, energy balance, and emission characteristi-cs of a spark ignition engine fueled with gasoline and LPG

Marthen Paloboran; Thesya Atarezcha Pangruruk; Ismail Rahim; Juhamri Juhamri; Auliya Rahmatul Ummah; Erlyne Nadhilah Widyaningrum

doi:10.30811/jpl.v24i3.8906

Performance, energy balance, and emission characteristi-cs of a spark ignition engine fueled with gasoline and LPG

Marthen Paloboran, Thesya Atarezcha Pangruruk, Ismail Rahim, Juhamri Juhamri, Auliya Rahmatul Ummah, Erlyne Nadhilah Widyaningrum

Abstract

Efforts to reduce greenhouse gas emissions continue to encourage the transition from liquid fossil fuels to gaseous fuels, as gaseous fuels are expected to provide cleaner combustion and lower hydrocarbon emissions. This study aimed to evaluate the performance of a spark ignition engine with a carburetor fuel system operated using gasoline and Liquefied Petroleum Gas (LPG), and to analyze its energy balance based on the First Law of Thermodynamics. The energy balance consisted of input energy from air and fuel, useful output energy, and energy losses during combustion. The engine was operated at speeds ranging from 2000 to 5000 rpm. Fuel consumption was measured after the engine consumed 50 mL of gasoline and 50 g of LPG. The results showed that emissions of HC, CO, and CO2 from LPG were lower than those from gasoline. The useful energy produced by LPG combustion was lower than that of gasoline; however, LPG showed higher thermal efficiency due to lower Specific Fuel Consumption (SFC) and reduced energy losses. The conversion from gasoline to LPG in a carburetor system reduced emissions by approximately 7–73%, whereas the average reduction in an electronic fuel injection system was reported at 11–15%.

Keywords

Carburetor injection system; hydrocarbon emission; liquid petroleum gas; fuel economy; energy balance

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References

S. Chen, C. Zhang, and X. Lu, “Energy Conversion from Fossil Fuel to Renewable Energy,” In: Akimoto, H., Tanimoto, H. (eds) Handbook of Air Quality and Climate Change, 2023, Springer, Singapore, https://doi.org/10.1007/978-981-15-2760-9_42

A. C. Adhi, N. W. Priambodo, Muchammad, T. S. Utomo, and R. K. A. S. Abdrian, “Unlocking Indonesia’s Critical Minerals for Renewable Energy: Challenges and Pathways to Net-zero Emissions,” Advance Sustainable Science, Engineering and Technology (ASSET), vol. 7, no. 4, pp. 1–36, 2025, https://doi.org/10.26877/asset.v7i4.2005

T. B. S. Zulfan, and T. B. Nur, “Performance Gasoline Generator Engine Fueled Liquid Petroleum Gas,” Journal of Physics: Conference Series, vol. 1566, pp. 1–6, 2020, https://doi.org/10.1088/1742-6596/1566/1/012025

O. M. Yamin, D. M. S. Nasution, Z. Noer, H. Lubis, and T. M. Sofie, “Comparative Analysis of Gasoline and Liquefied Petroleum Gas (LPG) on Motorcycle Engine Performance,” Journal of Technomaterial Physics, vol. 6, no. 2, pp. 127-131, 2024, https://doi.org/10.32734/jotp.v6i2.18270

M. K. Mohammed, H. H. Balla, Z. M. H. Al-Dulaimi, and A. M. Sadeq, “The Effect of Using LPG in a SI engine instead of using Gasoline fuel,” IOP Conference Series: Materials Science and Engineering, vol. 928, pp. 1-20, 2020, https://doi.org/10.1088/1757-899X/928/2/022089

Semin, and R. A. Bakar, “A Technical Review of Compressed Natural Gas as an Alternative Fuel for Internal Combustion Engines,” American Journal of Engineering and Applied Sciences, vol. 1, no. 4, pp. 302-311, 2008, https://doi.org/10.3844/ajeassp.2008.302.311

A. Syafrinaldy, F. R. Saputro, B. Muharto, T. Anggoro, I. Masfuri, Siswanto, E. Rosyadi, H. Nolandy, and D. A. Sugeng, “Effect of Natural Gas Usage as Fuel in Gasoline-Based Vehicle Using 100% Substitution Method,” Research Square, pp. 1-21, 2023, https://doi.org/10.21203/rs.3.rs-2888668/v1

E. Singh, K. Morganti, and R. Dibble, “Dual-fuel operation of gasoline and natural gas in a turbocharged engine,” Fuel, vol. 237, pp. 694–706, 2019, https://doi.org/10.1016/j.fuel.2018.09.158

W. Alturki, “Four-Stroke and Two-Stroke Marine Engines Comparison and Application,” International Journal of Engineering Research and Application, vol. 7, no. 4, pp. 49-56, 2017, https://doi.org/10.9790/9622-0704034956

B. Erkuş, A. Sürmen, M. I. Karamangil, “A comparative study of carburation and injection fuel supply methods in an LPG-fuelled SI engine,” Fuel, vol. 107, pp. 511-517, 2013, https://doi.org/10.1016/j.fuel.2012.12.061

T. J. Kotas, “The Exergy Method of Thermal Plant Analysis,” p. 324, 1995, Florida: Krieger Publishing Company.

S. R. Turns, “An Introduction to Combustion: Concept and Applications,” p. 700, 2000, USA: McGraw-Hill Series in Mechanical Engineering.

M. J. Moran, and H. N. Shapiro, “Fundamentals of engineering thermodynamics,” 5th Edition, p. 831, 2006, John Wiley & Sons Ltd, England.

M. Paloboran, H. Syam, M. Yahya, Jamaluddin, “Energy and Exergy Analysis on Spark Ignition Engines Under Varying Ignition Timing Pure Bioethanol Fuel,” Herald of the Bauman Moscow State Technical University. Series Natural Sciences, vol. 107, no. 2, pp. 140-159, 2023, http://dx.doi.org/10.18698/1812-3368-2023-2-140-159

G. T. Hashem, M. F. Al-Dawody, and I. E. Sarris, “The characteristics of gasoline engines with the use of LPG: An experimental and numerical study,” International Journal of Thermofluids, vol. 18, no. 100316, pp. 1-14, 2023, https://doi.org/10.1016/j.ijft.2023.100316

A. Martin, A. Hidayatullah, Y. R. Ginting, A. W. Sari, “Experimental investigation of HHO blending in combustion engine performance”, SINERGI Journal, vol. 9, no. 3, pp. 625-632, 2025, https://dx.doi.org/10.22441/sinergi.2025.3.006

C. Park, Y. Kim, Y. Choi, J. Lee, and B. Lim, “The effect of engine speed and cylinder-to-cylinder variations on backfire in a hydrogen-fueled internal combustion engine,” International Journal of Hydrogen Energy, vol. 44, no. 39, pp. 22223-22230, 2019, https://doi.org/10.1016/j.ijhydene.2019.06.058

M. Aldhaidhawi, and O. K. Obayes, “Influence of gasoline and LPG fuel on the heat distribution of inside cylinder in SI engines at high engine speeds,” 2nd International Conference on Engineering and Science to Achieve the Sustainable Development Goals, vol. 3092, no. 1, pp. x-xx, 2024, https://doi.org/10.1063/5.0199620

L. K. Koay, M. J. Md. Sah, and B. O. Rusli, “Comparative Study of Fuel Consumption, Acceleration and Emission for Road Vehicle Using LPG or Gasoline,” Advanced Engineering for Processes and Technologies, Advanced Structured Materials, vol. 102, pp. 77-87, 2019, https://doi.org/10.1007/978-3-030-05621-6_6

J. K. Kim, S. Yeo, J. H. Choi, and W. J. Lee, “LPG, Gasoline, and Diesel Engines for Small Marine Vessels: A Comparative Analysis of Eco-Friendliness and Economic Feasibility,” Energies, MDPI, vol. 17, no. 450, pp. 1-17, 2024, https://doi.org/10.3390/en17020450

J. W. Jeong, S. Baek, Y. Kim, S. Woo, Y. Lim, and K. Lee, “Investigation of CO2 and PN emission characteristics according to the propane content for a LPG engine,” Fuel, Elsevier, vol. 357, Part B, pp. x–xx, 2024, https://doi.org/10.1016/j.fuel.2023.129877

M. Usman, M. Farooq, M. Naqvi, M. W. Saleem, J. Hussain. S. R. Naqvi, S. Jahangir, H. M. J. Usama, S. Idrees, and A. Anukam, “Use of Gasoline, LPG and LPG-HHO Blend in SI Engine: A Comparative Performance for Emission Control and Sustainable Environment,” Processes, MDPI, vol. 8, no. 74, pp. 1-15, 2020, https://doi.org/10.3390/pr8010074

E. Kozłowski, A. Rimkus, M. Z. Laskowska, J. Matijošius, P. Wiśniowski, M. Traczyński, P. Laskowski, and R. Madlenak, “Energy and Environmental Impacts of Replacing Gasoline with LPG Under Real Driving Conditions,” Energies, MDPI, vol. 18, no. 20, pp. 5522, 2025, https://doi.org/10.3390/en18205522

T. Suthisripok, N. Phusakol, and N. Sawetkittirut, “Bi-fuel System - Gasoline/LPG in A Used 4-Stroke Motorcycle - Fuel Injection Type,” IOP Conference Series: Materials Science and Engineering, vol. 241, pp. 1-9, 2017, https://doi.org/10.1088/1757-899X/241/1/012021

A. Suyabodha, “Comparison the Rate of Energy Consumption between Gasoline95 and LPG in Spark Ignition Engine under Real Driving Conditions,” Energy Procedia, vol. 118, pp. 164-171, 2017, https://doi.org/10.1016/j.egypro.2017.07.035

Z. Zhang, M. Cheng, H. Wang, S. Zhou, S. Zhang, M. Pan, W. Guan, M. Li, and H. Sang, “Research on the Energy Conversion Mechanism of Engine Speed, Turbulence and Combustion Stability Based on Large Eddy Simulation,” Energies (MDPI), vol. 19, no. 1, pp. 1-22, 2025, https://www.mdpi.com/1996-1073/19/1/175

M. Paloboran, T. A. Pangruruk, Y. Tjandi, “Evaluation of Energy Conversion and Distribution on the SI-PFI Engine Fueled by A Gasoline-Bioethanol Blend with AFR Variations,” MECHANIKA, vol. 30, no. 5, pp. 430−437, 2024, https://doi.org/10.5755/j02.mech.37170

A. A. Eso, E. U. A. Eso, J. D. Enyia, and D. I. Igbong, “Performance of an SI Engine Operating on a Dual Gasoline and Liquefied Petroleum Gas (LPG) Fuel,” SPE Nigeria Annual International Conference and Exhibition, Paper Number: SPE-217229-MS, 2023, https://doi.org/10.2118/217229-MS

O. M. Yamin, Nasution, D. M. Sari, Z. Noer, H. Lubis, T. M. Sofie, “Comparative Analysis of Gasoline and Liquefied Petroleum Gas (LPG) on Motorcycle Engine Performance,” Journal of Technomaterial Physics, vol. 6, no. 2, pp. 127-131, 2024, https://doi.org/10.32734/jotp.v6i2.18270

F. Aydın, and I. Kırmaz, “Effects of Gasoline and LPG on the Performance and Emissions of a Turbocharged Direct-Injection Vehicle: A Response Surface Methodology Approach,” International Journal of Automotive and Mechanical Engineering, vol. 22, no. 4, pp. 12872-12886, 2025, https://doi.org/10.15282/ijame.22.4.2025.3.0980

DOI: http://dx.doi.org/10.30811/jpl.v24i3.8906