Effects of Pyrolysis Fuel Blend, Ethanol-Pentanol Additives, and Injection Pressure Variations on Diesel Engine Performance
Pengaruh Campuran Bahan Bakar Pirolisis, Aditif Etanol-Pentanol, dan Variasi Tekanan Injeksi terhadap Kinerja Mesin Diesel
DOI:
https://doi.org/10.21070/r.e.m.v11i2.1878Keywords:
Pyrolysis Oil; Ethanol and Pentanol Additives;Injection Pressure; Engine Performance; Diesel Engine.Abstract
Diesel engines have high thermal efficiency and produce substantial torque, making them widely used across various sectors. However, dependence on fossil fuels and increasing exhaust emissions have driven the need for the development of more environmentally friendly alternative fuels. One of the solutions being developed is the utilization of pyrolysis oil derived from plastic waste as an alternative fuel. Nevertheless, the use of pyrolysis oil still has limitations in combustion quality, thereby requiring the addition of additives. This study was conducted experimentally using a single-cylinder diesel engine operated at a constant speed of 1500 rpm under load variations of 1000, 1500, 2000, 2500 and 3000 W. The tested fuels included solar diesel fuel, a P20 blend (20% plastic waste pyrolysis oil and 80% diesel fuel), and P20 blends supplemented with ethanol and pentanol at specified proportions. The performance parameters evaluated were brake power, torque, Brake Thermal Efficiency (BTE), Specific Fuel Consumption (SFC), and smoke oppacity. The research findings showed that increasing the injection pressure from 180 to 210 bar improved engine performance and reduced emissions across all fuel blends. Diesel at 210 bar achieved the highest power (3.70 kW), torque (23.55 N·m), BTE (22.53%), and lowest SFC (0.38 kg/kWh). Among the pyrolysis oil blends, P20E10Pn10 at 210 bar demonstrated the best performance, with 3.60 kW power, 22.93 N·m torque, 21.67% BTE, and 0.39 kg/kWh SFC, while producing the lowest smoke opacity (3.50–18.67%). Thus, P20E10Pn10 at 210 bar was identified as the optimum condition, providing a favorable balance between engine performance and emission reduction.
References
[1] T. Burhanuddin Sitorus et al., “Performansi Mesin Diesel Menggunakan Biodiesel Dari Campuran Biji Karet-Minyak Pirolisis Limbah Plastik-Minyak Solar,” Jurnal Rekayasa Mesin, vol. 16, no. 1, pp. 489–506, Jun. 2025, doi: 10.21776/JRM.V16I1.1765.
[2] D. Yuvenda, B. Sudarmanta, R. P. Putra, M. Martias, and E. Alwi, “Pengaruh Tekanan Injeksi Gas Terhadap Konsumsi Bahan Bakar dan Efisiensi Termal pada Mesin Diesel Dual Fuel,” INVOTEK: Jurnal Inovasi Vokasional dan Teknologi, vol. 19, no. 1, pp. 35–42, Apr. 2019, doi: 10.24036/INVOTEK.V19I1.349.
[3] A. Murdieono and N. Aklis, “Kinerja Mesin Diesel dengan Bahan Bakar Minyak Hasil Pirolisis Sampah Plastik,” Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri, pp. 98–108, 2024.
[4] K. Winangun, W. T. Putra, N. S. Akhmad, and T. Prasetyo, “Pengaruh bahan bakar campuran minyak plastik LDPE dengan biosolar terhadap kinerja dan emisi mesin diesel Effect of LDPE plastik oil mixed fuel with biosolar on diesel engine performance and emissions,” vol. 3, pp. 89–95, 2022.
[5] A. Aulia, I. Abdullah, and A. H. Sebayang, “Evaluation of diesel engine performance and emissions fueled with waste cooking oil biodiesel-plastic pyrolysis oil blends,” Disseminating Information on the Research of Mechanical Engineering-Jurnal Polimesin, vol. 24, no. 1, 2026.
[6] H. Yaqoob, H. M. Ali, U. Sajjad, and K. Hamid, “Investigating the potential of plastic pyrolysis oil-diesel blends in diesel engine: Performance, emissions, thermodynamics and sustainability analysis,” Results in Engineering, vol. 24, p. 103336, Dec. 2024, doi: 10.1016/J.RINENG.2024.103336.
[7] K. Winangun, W. T. Putra, N. S. Akhmad, and T. Prasetyo, “Pengaruh bahan bakar campuran minyak plastik LDPE dengan biosolar terhadap kinerja dan emisi mesin diesel,” JTTM : Jurnal Terapan Teknik Mesin, vol. 3, no. 2, pp. 89–95, Oct. 2022, doi: 10.37373/JTTM.V3I2.300.
[8] S. Sayyed, R. Kumar, K. Kulkarni, T. Alam, and S. M. Eldin, “Influence of additive mixed ethanol-biodiesel blends on diesel engine characteristics,” Alexandria Engineering Journal, vol. 71, pp. 619–629, 2023, doi: 10.1016/j.aej.2023.03.091.
[9] J. Liang, Q. Zhang, Q. Ma, Z. Chen, and Z. Zheng, “Effect of various ethanol / diesel cosolvents addition on combustion and emission characteristics of a CRDI heavy diesel engine,” Energy Reports, vol. 8, no. x, pp. 735–748, 2022, doi: 10.1016/j.egyr.2021.12.011.
[10] A. A. Rahim, I. Saad, N. W. M. Zulkifli, and M. N. A. M. Yusoff, “PERFORMANCE AND EMISSIONS OF DUAL ALCOHOL FUEL BLEND WITH B20 POME BIODIESEL IN DIESEL ENGINE,” J. Teknol., vol. 87, no. 3, pp. 455–463, May 2025, doi: 10.11113/JURNALTEKNOLOGI.V87.21791.
[11] “View of Pengaruh Penggunaan Eletrik Blower Terhadap Konsumsi Bahan Bakar Motor Diesel Satu Silinder.” Accessed: Jul. 27, 2026. [Online]. Available: https://ejournal.unesa.ac.id/index.php/aij/article/view/66444/49567
[12] M. Mariappan, M. S. Panithasan, and G. Venkadesan, “Pyrolysis plastic oil production and optimisation followed by maximum possible replacement of diesel with bio-oil/methanol blends in a CRDI engine,” J. Clean. Prod., vol. 312, p. 127687, Aug. 2021, doi: 10.1016/J.JCLEPRO.2021.127687.
[13] M. Bhargavi, T. Vinod Kumar, R. Ali Azmath Shaik, S. Kishore Kanna, and S. Padmanabhan, “Effective utilization and optimization of waste plastic oil with ethanol additive in diesel engine using full factorial design,” Mater. Today Proc., vol. 52, pp. 930–936, Jan. 2022, doi: 10.1016/J.MATPR.2021.10.310.
[14] A. K. Yadav, S. Maity, S. K. Yadav, V. Madav, G. N. Kumar, and S. Dutta, “Transforming plastic waste into liquid fuels: novel upgrading of polypropylene pyrolysis oil and its utilization in a diesel engine,” RSC Adv., vol. 16, no. 24, pp. 21693–21704, 2026, doi: 10.1039/d5ra09026a.
[15] M. Bhowmik, M. Deb, and G. R. K. Sastry, “Performance and emission assessment of an indirect ignition diesel engine fuelled with waste plastic pyrolysis oil and ethanol blends,” Frontiers in Thermal Engineering, vol. 5, Apr. 2025, doi: 10.3389/fther.2025.1548806.
[16] A. Pumpuang, N. Klinkaew, K. Wathakit, A. Sukhom, and E. Sukjit, “The influence of plastic pyrolysis oil on fuel lubricity and diesel engine performance,” RSC Adv., vol. 14, no. 14, pp. 10070–10087, 2024, doi: 10.1039/d3ra08150h.
[17] F. Faisal, M. G. Rasul, M. I. Jahirul, and A. A. Chowdhury, “Waste plastics pyrolytic oil is a source of diesel fuel: A recent review on diesel engine performance, emissions, and combustion characteristics,” Science of the Total Environment, vol. 886, Aug. 2023, doi: 10.1016/j.scitotenv.2023.163756.
[18] A. A. Yusuf et al., “Experimental study on emissions and particulate characteristics of diesel engine fueled with plastic waste oil, acetone-butanol-ethanol and diesel blends,” Process Safety and Environmental Protection, vol. 191, no. September, pp. 1419–1431, 2024, doi: 10.1016/j.psep.2024.09.060.
[19] M. K. YEŞİLYURT, B. DOĞAN, and D. EROL, “Experimental assessment of a CI engine operating with 1-pentanol/diesel fuel blends,” International Journal of Automotive Science and Technology, vol. 4, no. 2, pp. 70–89, Jun. 2020, doi: 10.30939/IJASTECH..708517.
[20] L. So Khuong, N. Hashimoto, and O. Fujita, “Spray, droplet evaporation, combustion, and emission characteristics of future transport fuels for compression-ignition engines: A review,” Journal of Traffic and Transportation Engineering (English Edition), vol. 11, no. 4, pp. 575–613, Aug. 2024, doi: 10.1016/J.JTTE.2024.04.003.
[21] S. B. Ogunjide, W. Zhong, T. Pachiannan, and Y. Zhu, “Assessing the impacts of multiple injections of high n-pentanol blend on low load engine performance and emissions towards improved efficiency and a cleaner future,” Fuel, vol. 405, p. 136588, Feb. 2026, doi: 10.1016/J.FUEL.2025.136588.
[22] M. M. Khan, R. Chatterjee, S. M. M. Hasnain, J. Giri, and R. Zairov, “Effect of fuel injection parameters on the performance & emissions of biodiesel based CI engine-A review,” Results in Engineering, vol. 24, p. 103180, Dec. 2024, doi: 10.1016/J.RINENG.2024.103180.
[23] D. H. T. Prasetiyo, R. Sidartawan, A. Sanata, D. Yudhistiro, and R. Z. K. Nisak, “Analisis Biodiesel Sebagai Aditif Bahan Bakar Diesel Terhadap Kinerja dan Konsumsi Bahan Bakar Mesin Pembangkit Listrik,” Turbo : Jurnal Program Studi Teknik Mesin, vol. 13, no. 2, pp. 423–430, 2024, doi: 10.24127/trb.v13i2.3688.
[24] H. Venu, P. Appavu, V. R. M, and J. Jayaraman, “Influence of nanoparticles on emission and performance characteristics of biodiesel-diesel blends in a DI diesel engine,” Australian Journal of Mechanical Engineering, vol. 22, no. 2, pp. 371–386, 2024, doi: 10.1080/14484846.2022.2098574.
[25] M. Bhowmik, M. Deb, and G. R. K. Sastry, “Performance and emission assessment of an indirect ignition diesel engine fuelled with waste plastic pyrolysis oil and ethanol blends,” Frontiers in Thermal Engineering, vol. 5, Apr. 2025, doi: 10.3389/fther.2025.1548806.
[26] M. Wan, F. Huang, L. Shen, and J. Lei, “Experimental investigation on effects of fuel injection and intake parameters on combustion and performance of a turbocharged diesel engine at different altitudes,” Front. Energy Res., vol. 10, p. 1090948, Jan. 2023, doi: 10.3389/FENRG.2022.1090948/TEXT.
[27] Syarifudin, F. Fatkhurrozak, F. L. Sanjaya, E. Yohana, Syaiful, and A. Wibowo, “The Effect of Ethanol on Brake Torque, Brake Specific Fuel Consumption, Smoke Opacity, and Exhaust Gas Temperature of Diesel Engine 4JB1 Fueled by Diesel-Jatropha Oil,” Automotive Experiences, vol. 5, no. 2, pp. 230–237, Apr. 2022, doi: 10.31603/AE.6447.
[28] A. A. Rahim, I. Saad, N. W. M. Zulkifli, and M. N. A. M. Yusoff, “PERFORMANCE AND EMISSIONS OF DUAL ALCOHOL FUEL BLEND WITH B20 POME BIODIESEL IN DIESEL ENGINE,” J. Teknol., vol. 87, no. 3, pp. 455–463, May 2025, doi: 10.11113/JURNALTEKNOLOGI.V87.21791.
[29] S. Dey et al., “Optimization of CI Engine Performance and Emissions Using Alcohol–Biodiesel Blends: A Regression Analysis Approach,” Sustainability 2023, Vol. 15, Page 14667, vol. 15, no. 20, p. 14667, Oct. 2023, doi: 10.3390/SU152014667.
[30] N. Yilmaz, A. Atmanli, M. J. Hall, and F. M. Vigil, “Determination of the Optimum Blend Ratio of Diesel, Waste Oil Derived Biodiesel and 1-Pentanol Using the Response Surface Method,” Energies 2022, Vol. 15, Page 5144, vol. 15, no. 14, p. 5144, Jul. 2022, doi: 10.3390/EN15145144.
[31] F. Majedi, D. Setiyaningrum, S. M. T. Hidayahtullah, and A. Abbas, “Effects of Injection Pressure on Output Power, BTE, SFC and Opacity in a Typical Single-Cylinder Diesel Engine,” Automotive Experiences, vol. 3, no. 1, pp. 20–26, Apr. 2020, doi: 10.31603/AE.V3I1.3006.
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