Abstract
Pyrolyzed waste plastic-based green fuel has been reported to be used as an alternate fuel for diesel engines. Some of the main challenges for implementing this in current automotive technology include evaluating engine performance, emission, noise vibration harshness (NVH), and knock characteristics of this fuel. This study focuses on the engine performance of poly-ethylene terephthalate (PET)-based waste plastic oil (WPO) at varying engine speed conditions. The pyrolysis of mixed-waste plastic was carried out at 300 °C in a fixed-bed reactor. Physicochemical properties such as viscosity, density, calorific value, sulfur, and research octane number (RON) of the plastic fuel and its blends with gasoline were analyzed using ASTM standard test methods. The WPO was blended with two different types of gasoline (RON88 and RON90) at 10, 20, and 30%, and was tested in a spark-ignition (SI) engine. The experimental results showed that different WPO–gasoline blends can be used in an SI engine without any engine modifications, and the performance indicators for different blends were found to be close to that of pure gasoline. The brake power and brake specific fuel consumption (BSFC) were found to be 4.1 kW and 0.309 kg/kW h, respectively. The 10% WPO and 90% RON90 blend produced optimal engine performance at 3500 rpm.
Highlights
Increasing world energy demand is causing an increase in the consumption of fossil fuels, which causes a negative impact on global warming and the overall environment
This study examines the suitability of gasoline– waste plastic oil (WPO) blend fuel for an SI engine as a potential renewable fuel source for future energy supply
The results show that the characteristics of WPO are close to the standards of gasoline fuels that have been set by the Indonesian government
Summary
Increasing world energy demand is causing an increase in the consumption of fossil fuels, which causes a negative impact on global warming and the overall environment. One of the advantages of PET plastic waste is that it can be recycled into various types of goods that have economic value such as clothing, bags, furniture, and carpet Another use of PET plastic is to convert it to fuel oil via pyrolysis [14]. Many researchers have investigated techniques that would reduce plastic waste in a short time, which is to convert plastic waste into fuel oil via pyrolysis [17], by heating the polymer material without or using only a little oxygen [18,19]. Condensation occurring in the heat-exchange process produces plastic poginiaylstrheowselyiiht.sheei.sa,.ttCh-TeeOhx2ecchshaeanenmdagriCeecaOpolri,loaf,congerdasmsso,uptalhranoeddrCumc1c3hi.e8saHscrep2,3ll.wl5aa6snht[eii2cco3huo].isilshTwvyhiadethlrrueotachbaaelrreecbhofteonhmrsr.eiincFeadulmurftsohatrjeromirermus,ploaerroesCp,d1ce3uo.c8cniHtasdl2le3ypn.5rsp6oar[dto2iuo3dcn]u.ecodTtcihcodeunurrerraiiannnrdgge rthefrieneemrieasjo[2r4p–r2o6d].ucts produced during pyrolysis These are oil, gas, and char, which is valuable for industries, especially production and refineries [24,25,26]. This study examines the suitability of gasoline– WPO blend fuel for an SI engine as a potential renewable fuel source for future energy supply
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