Sustainability improvement by utilizing polymer waste as an energy source for a diesel engine with alcohol additives

Abstract

Energy and fossil fuel supplies have been threatened by the depletion of fossil fuels on a global scale, as well as by the constant rise in oil prices and the continual increase in environmental degradation. On the other hand, polymer waste has increased due to its usage in a daily lifestyle because of its cheap cost, ease of production, and adaptability. Indirectly, these polymer wastes are causing some major problems for the ecosystem and other living things. By transforming waste polymers into usable energy, can address for both the non-biodegradability of polymers and the need for an alternative fuel. This research paper aims to evaluate the performance of fuel produced by the pyrolysis of polyethylene polymer. Three distinct alcohol additive blends with polymer fuel were investigated in a single-cylinder direct injection diesel engine for their performance and emission characteristics. The engine efficiency of pentanol was found to be about 3.4% higher than that of base diesel, and with 7% better fuel consumption. Additionally, alcohol additives reduced CO emissions by 3.6%–3.8% and HC emissions by 3.5%–3.8%. The results were further analysed using the design of experiment tool, "Full Factorial Design" to determine the most optimal running condition with fuel consumption of 0.4508 kg/kWh, hydrocarbon of 49 ppm and carbon monoxide 0.265% at half load conditions.

Keywords

• Waste to energy
• polyethylene polymer
• diesel engine
• emission
• full factorial design
• alcohol additives.

References

1. [1] V. Gnanamoorthi and M. Murugan, “Effect of DEE and MEA as additives on a CRDI diesel engine fueled with waste plastic oil blend,” Energy Sources, Part A Recover. Util. Environ. Eff., vol. 0, no. 0, pp. 1–16, 2019, doi: 10.1080/15567036.2019.1657206.
2. [2] P. Bridjesh, P. Periyasamy, A. V. Krishna Chaitanya, and N. K. Geetha, “MEA and DEE as additives on diesel engine using waste plastic oil diesel blends,” Sustain. Environ. Res., vol. 28, no. 3, pp. 142–147, 2018, doi: 10.1016/j.serj.2018.01.001.
3. [3] J. Gong, X. Chen, and T. Tang, “Recent progress in controlled carbonization of (waste) polymers,” Prog. Polym. Sci., vol. 94, pp. 1–32, Jul. 2019, doi: 10.1016/J.PROGPOLYMSCI.2019.04.001.
4. [4] H. Y. Kim, J. C. Ge, and N. J. Choi, “Effects of Ethanol–Diesel on the Combustion and Emissions from a Diesel Engine at a Low Idle Speed,” Applied Sciences, vol. 10, no. 12. 2020. doi: 10.3390/app10124153.
5. [5] S. Ravi and A. Karthikeyan, “Effect of propanol addition on the performance and emissions characteristics of a direct injection diesel engine fuelled with waste plastic oil,” Int. J. Ambient Energy, pp. 1–6, Oct. 2019, doi: 10.1080/01430750.2019.1670728.
6. [6] N. Jeyakumar and B. Narayanasamy, “Investigation of performance, emission, combustion characteristics of municipal waste plastic oil fueled diesel engine with nano fluids,” Energy Sources, Part A Recover. Util. Environ. Eff., vol. 00, no. 00, pp. 1–22, 2020, doi: 10.1080/15567036.2020.1745958.
7. [7] P. R. Srivathsan, P. Terrin Babu, V. N. Banugopan, S. Prabhakar, and K. Annamalai, “Experimental investigation on a low heat rejection engine,” Proc. Int. Conf. Front. Automob. Mech. Eng. - 2010, FAME-2010, pp. 122–127, 2010, doi: 10.1109/FAME.2010.5714815.
8. [8] S. Ellappan and B. Pappula, “Utilization of unattended waste plastic oil as fuel in low heat rejection diesel engine,” Sustain. Environ. Res., vol. 1, no. 1, pp. 1–9, 2019, doi: 10.1186/s42834-019-0006-7.

9. [9] B. Govinda Rao, Y. Datta Bharadwaz, C. Virajitha, and V. Dharma Rao, “Effect of injection parameters on the performance and emission characteristics of a variable compression ratio diesel engine with plastic oil blends – An experimental study,” Energy Environ., vol. 29, no. 4, pp. 492–510, 2018, doi: 10.1177/0958305X17753208.
10. [10] D. Damodharan, A. P. Sathiyagnanam, D. Rana, S. Saravanan, B. Rajesh Kumar, and B. Sethuramasamyraja, “Effective utilization of waste plastic oil in a direct injection diesel engine using high carbon alcohols as oxygenated additives for cleaner emissions,” Energy Convers. Manag., vol. 166, no. April, pp. 81–97, 2018, doi: 10.1016/j.enconman.2018.04.006.
11. [11] A. K. Das, D. Hansdah, A. K. Mohapatra, and A. K. Panda, “Energy, exergy and emission analysis on a DI single cylinder diesel engine using pyrolytic waste plastic oil diesel blend,” J. Energy Inst., vol. 93, no. 4, pp. 1624–1633, 2020, doi: 10.1016/j.joei.2020.01.024.
12. [12] M. Chandran, S. Tamilkolundu, and C. Murugesan, “Characterization studies: waste plastic oil and its blends,” Energy Sources, Part A Recover. Util. Environ. Eff., vol. 42, no. 3, pp. 281–291, 2020, doi: 10.1080/15567036.2019.1587074.
13. [13] R. K. Singh, B. Ruj, A. K. Sadhukhan, P. Gupta, and V. P. Tigga, “Waste plastic to pyrolytic oil and its utilization in CI engine: Performance analysis and combustion characteristics,” Fuel, vol. 262, no. October, p. 116539, 2020, doi: 10.1016/j.fuel.2019.116539.
14. [14] T. R. Praveenkumar, P. Velusamy, and D. Balamoorthy, “Pyrolysis oil for diesel engines from plastic solid waste: a performance, combustion and emission study,” Int. J. Ambient Energy, vol. 0, no. 0, pp. 1–21, 2020, doi: 10.1080/01430750.2020.1818124.
15. [15] A. K. Das, M. R. Padhi, D. Hansdah, and A. K. Panda, “Optimization of Engine Parameters and Ethanol Fuel Additive of a Diesel Engine Fuelled with Waste Plastic Oil Blended Diesel,” Process Integr. Optim. Sustain., vol. 4, no. 4, pp. 465–479, 2020, doi: 10.1007/s41660-020-00134-7.
16. [16] 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, 2022, doi: https://doi.org/10.1016/j.matpr.2021.10.310.
17. [17] S. Padmanabhan et al., “An analysis of environment effect on ethanol blends with plastic fuel and blend optimization using a full factorial design,” Sci. Rep., vol. 12, no. 1, p. 21719, 2022, doi: 10.1038/s41598-022-26046-9.
18. [18] D. Damodharan, K. Gopal, A. P. Sathiyagnanam, B. Rajesh Kumar, M. V. Depoures, and N. Mukilarasan, “Performance and emission study of a single cylinder diesel engine fuelled with n-octanol/WPO with some modifications,” Int. J. Ambient Energy, vol. 42, no. 7, pp. 779–788, May 2021, doi: 10.1080/01430750.2018.1563824.
19. [19] K. Murthy, R. J. Shetty, and K. Shiva, “Plastic waste conversion to fuel: a review on pyrolysis process and influence of operating parameters,” Energy Sources, Part A Recover. Util. Environ. Eff., vol. 00, no. 00, pp. 1–21, 2020, doi: 10.1080/15567036.2020.1818892.
20. [20] P. Saravanan, D. Mala, V. Jayaseelan, and N. M. Kumar, “Experimental performance investigation of Partially Stabilized Zirconia coated low heat rejection diesel engine with waste plastic oil as a fuel,” Energy Sources, Part A Recover. Util. Environ. Eff., vol. 00, no. 00, pp. 1–14, 2019, doi: 10.1080/15567036.2019.1683647.
21. [21] D. Dillikannan et al., “Effective utilization of waste plastic oil/n-hexanol in an off-road, unmodified DI diesel engine and evaluating its performance, emission, and combustion characteristics,” Energy Sources, Part A Recover. Util. Environ. Eff., vol. 42, no. 11, pp. 1375–1390, 2020, doi: 10.1080/15567036.2019.1604853.
22. [22] M. Ranjbari et al., “Biofuel supply chain management in the circular economy transition: An inclusive knowledge map of the field,” Chemosphere, vol. 296, p. 133968, 2022, doi: https://doi.org/10.1016/j.chemosphere.2022.133968.
23. [23] M. Xu, M. Yang, H. Sun, M. Gao, Q. Wang, and C. Wu, “Bioconversion of biowaste into renewable energy and resources: A sustainable strategy,” Environ. Res., vol. 214, p. 113929, 2022, doi: https://doi.org/10.1016/j.envres.2022.113929.
24. [24] H. Y. Leong et al., “Waste biorefinery towards a sustainable circular bioeconomy: a solution to global issues,” Biotechnol. Biofuels, vol. 14, no. 1, p. 87, 2021, doi: 10.1186/s13068-021-01939-5.
25. [25] G. M. K. Jesus, D. Jugend, L. A. B. Paes, R. M. Siqueira, and M. A. Leandrin, “Barriers to the adoption of the circular economy in the Brazilian sugarcane ethanol sector,” Clean Technol. Environ. Policy, 2021, doi: 10.1007/s10098-021-02129-5.
26. [26] O. M. Butt, M. S. Ahmad, H. S. Che, and N. A. Rahim, “Usage of on-demand oxyhydrogen gas as clean/renewable fuel for combustion applications: a review,” Int. J. Green Energy, vol. 18, no. 13, pp. 1405–1429, Oct. 2021, doi: 10.1080/15435075.2021.1904944.
27. [27] G. Venkatesh, “Circular Bio-economy—Paradigm for the Future: Systematic Review of Scientific Journal Publications from 2015 to 2021,” Circ. Econ. Sustain., vol. 2, no. 1, pp. 231–279, 2022, doi: 10.1007/s43615-021-00084-3.
28. [28] B. Doğan, D. Erol, H. Yaman, and E. Kodanli, “The effect of ethanol-gasoline blends on performance and exhaust emissions of a spark ignition engine through exergy analysis,” Appl. Therm. Eng., vol. 120, pp. 433–443, 2017, doi: https://doi.org/10.1016/j.applthermaleng.2017.04.012.
29. [29] R. A. Stein, J. E. Anderson, and T. J. Wallington, “An overview of the effects of ethanol-gasoline blends on SI engine performance, fuel efficiency, and emissions,” SAE Int. J. Engines, vol. 6, no. 1, pp. 470–487, 2013, doi: 10.4271/2013-01-1635.
30. [30] J. E. Tibaquirá, J. I. Huertas, S. Ospina, L. F. Quirama, and J. E. Niño, “The Effect of Using Ethanol-Gasoline Blends on the Mechanical, Energy and Environmental Performance of In-Use Vehicles,” Energies, vol. 11, no. 1, pp. 1–17, 2018, doi: 10.3390/en11010221.
31. [31] S. Padmanabhan et al., “Sustainability and Environmental Impact of Ethanol and Oxyhydrogen Addition on Nanocoated Gasoline Engine,” Bioinorg. Chem. Appl., vol. 2022, p. 1936415, 2022, doi: 10.1155/2022/1936415.
32. [32] P. Sambandam, P. Murugesan, M. I. Shajahan, B. Sethuraman, and H. M. Abdelmoneam Hussein, “Sustainability and Environmental Impact of Hydroxy Addition on a Light-Duty Generator Powered with an Ethanol–Gasoline Blend,” J. Renew. Energy Environ., vol. 9, no. 2, pp. 82–92, 2022, doi: 10.30501/jree.2021.299136.1241.