EXPERIMENTAL INVESTIGATION OF ETHANOL BLENDED WITH WASTE PLASTIC OIL AS AN ALTERNATIVE BIOFUEL IN A DIESEL ENGINE
Keywords:
Waste plastic oil, ethanol, diesel engine, performance, emissionsAbstract
The present study aimed to investigate and compare the effects of waste plastic oil/ethanol blends focusing on physical-chemical properties of the fuel and performance, combustion characteristics, and emissions of a diesel engine. Waste plastic oil produced by the pyrolysis process was mixed with ethanol. Experiments were conducted on WE10 (10% ethanol and 90% waste plastic oil, v/v) at four engine loads and a constant engine speed of 2,500 rpm. The experimental results showed that the blended fuel possessed higher cetane index, lower viscosity, density, flash point, and heating value when compared with diesel fuel. The engine test revealed that the use of WE10 led to an increase in indicated specific fuel consumption and a reduction in indicated thermal efficiency. The addition of ethanol to waste plastic oil led to increase in peak of heat release rate in consequence of the retarded start of combustion. The WE10 tended to increase NOX, CO, and HC with respect to diesel fuel. However, lower NOX was found for the combustion of WE10 when compared with WPO.
References
Bridjesh, P., Periyasamy, P., Krishna Chaitanya, A.V., and Geetha, N.K. (2018). MEA and DEE as additives on diesel engine using waste plastic oil diesel blends. Sustain. Environ. Res., 28(3):142-147.
Choi, B. and Jiang, X. (2015). Individual hydrocarbons and particulate matter emission from turbocharged CRDI diesel engine fueled with n-butanol/diesel blends. Fuel, 154:188-195.
Gowtham, M., Mohan, C.G., and Prakash, R. (2019). Effect of n-butanol fumigation on the regulated and unregulated emission characteristics of a diesel engine. Fuel, 242:84-95.
Jamrozik, A. (2017). The effect of the alcohol content in the fuel mixture on the performance and emissions of a direct injection diesel engine fueled with diesel-methanol and diesel-ethanol blends. Energ. Convers. Manage., 148:461-476.
Jeevahan, J., Sriramanjaneyulu, G., Durairaj, R.B., and Mageshwaran, G. (2018). Experimental investigation of the suitability of 1-butanol blended with biodiesel as an alternative biofuel in diesel engines. Biocatal. Agr. Biotec., 15:72-77.
Kalargaris, I., Tian, G., and Gu, S. (2017). Combustion, performance and emission analysis of a DI diesel engine using plastic pyrolysis oil. Fuel Proces. Technol., 157:108-115.
López, A.F., Cadrazco, M., Agudelo, A.F., Corredor, L.A., Vélez, J.A., and Agudelo, J.R. (2015). Impact of n-butanol and hydrous ethanol fumigation on the performance and pollutant emissions of an automotive diesel engine. Fuel, 153:483-491.
Maithomklang, S., Sukjit, E., Liplap, P., and Arjharn, W. (2017). Combustion and emission characteristics of a diesel engine filled with waste plastic oil- oxygenated blends. Proceeding of the 11th South East Asian Technical University Consortium; March 13-14, 2017; Ho Chi Minh City, Vietnam., p. 1-6.
Miandad, R., Barakat, M.A., Aburiazaiza, A.S., Rehan, M., and Nizami, A.S. (2016). Catalytic pyrolysis of plastic waste: A review. Process Saf. Environ. Prot., 102:822-838.
Miandad, R., Barakat, M.A., Aburiazaiza, A.S., Rehan, M., Ismail, I.M.I., and Nizami, A.S. (2017). Effect of plastic waste types on pyrolysis liquid oil. Int. Biodeter. Biodeg., 119:239-252.
Sukjit, E., Herreros, J.M., Dearn K.D., García Contreras, R., and Tsolakis, A. (2012). The effect of the addition of individual methyl esters on the combustion and emissions of ethanol and butanol diesel blends. Energy, 42(1):364-374.
Sukjit, E., Liplap, P., Maithomklang, S., and Arjharn, W. (2017). Experimental investigation on a DI diesel engine using waste plastic oil blended with oxygenated fuels. In: Proceeding of the 13th International Conference on Engines & Vehicles; Sept 10-14, 2017; Capri, Napoli, Italy, p. 1-6.
Sukjit, E., Maithomklang, S., Trirak, N., and Klinkaew, N. (2018). Emission Benefits from the use of castor oil in a compression ignition engine fuelled with diesel-ethanol blends. Int. J. Electr. Energy, 6(2):57-63.
Wei, L., Cheung, C.S., and Ning, Z. (2018). Effects of biodiesel-ethanol and biodiesel-butanol blends on the combustion, performance and emissions of a diesel engine. Energy, 155:957-970.
Yilmaz, N. and Davis, S.M. (2016). Polycyclic aromatic hydrocarbon (PAH) formation in a diesel engine fueled with diesel, biodiesel and biodiesel/n-butanol blends. Fuel, 181:729-740.
