Abstract
Thailand has had the policies supporting the production and uses of renewable and alternative energies in order to reduce the imports of the fuels from other countries. Producing the fuels from plastic wastes can lower the pollution and energy problems in the country in order to ensure that the fuels can actually be the alternatives. The purpose of this research study is to compare the effects of using the diesel fuel from the plastic wastes on the single cylinder engines by comparing the performances and wears of the engines with the commercial diesel fuel and waste plastic oil. There were two tests: 1) the engine performance test and 2) the engine wear test. According to the results of the engine performance test, it was found that the waste plastic oil resulted in the torque and brake power lower than those of the commercial diesel fuel for about 3% at 2,200 revolutions per minute. However, the waste plastic oil had the lower fuel consumption rate than that of the commercial diesel fuel. As a result, the waste plastic oil had the specific fuel consumption that was lower than that of the commercial diesel fuel for about 2%. Regarding the engine wears, it was found that the waste plastic oil caused slightly more wears than the commercial diesel fuel. It was concluded that the waste plastic oil was an alternative energy that had the potentials of the commercial diesel fuel without modifying the engines.
Highlights
Thailand had to mainly rely on importing energies from other country
The tested diesel fuel was commercial according to the standard of the Department of Energy Business [14]. By comparing it to the diesel fuel produced from 100% plastic wastes through pyrolysis from the waste plastic oil refinery of Suranaree University of Technology, the properties of most oil were consistent with the announcements of the department
Regarding the specific fuel consumption (SFC), it was found that the engine using the waste plastic oil (WPO) had the lowest average SFC of 0.44 g/kW-hr
Summary
Thailand had to mainly rely on importing energies from other country. It was found that 60 percent of the demands for commercial energies were initially from the imports. Adding values to the wastes in order to produce renewable energies such as electric power, heat or fuels was an alternative that did solve the environmental problems, but it would overcome the country’s energy crisis [6]. The properties of the waste plastic oil were similar to that of the diesel fuel [11]-[13] This oil could be a commercially renewable fuel, the qualities were diversely dependent on various factors such as technologies, production systems and raw materials. It was necessary to have supporting data about performances and engine wears in order to efficiently use the waste plastic oil and to perfectly replace the commercial diesel fuel without affecting engines
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