Investigation of the use of fuel and diethyl ether obtained from waste tires in diesel engines

Continuous population growth and industrialization have brought about a rapid increase in world energy consumption, and as a result, researchers have started to work on alternative fuels in order to reduce the dependence on fossil fuels. Researchers have focused on recycling of waste materials in order to recover waste materials that cause serious problems in terms of human and environmental health and to find alternative fuels in agriculture, transportation and industry. In addition to the use of diesel + waste tire oil mixtures as an alternative fuel for diesel engines, many additives with high oxygen ratios such as ethanol, butanol, methanol, diethyl ether are used. In this thesis, diethyl ether additive was used in addition to diesel fuel + waste tire oil fuel mixtures. It is aimed to examine the effects on engine performance and emission characteristics as a result of the use of fuel mixtures prepared in certain proportions by volume in diesel engines. If waste tire oil + diesel fuel mixtures are used in a diesel engine, there was an increase in CO, NOx and HC emissions compared to operating with diesel oil. While engine power remained approximately the same, specific fuel consumption decreased. All emission values were improved in waste tire oil + diesel fuel + diethyl ether mixtures. While the specific fuel consumption decreased with the diethyl ether mixture, no significant change was observed in the engine power The effects of the mixtures prepared at the ratios determined by volume on the parts of a single cylinder diesel engine were investigated. It was observed that the amount of residue on the engine parts increased after the waste tire oil mixture, which was used at a high rate in the study. When the effect of the diethyl ether additive on the engine parts in the prepared fuel mixtures was examined, it was observed that it reduced the residue rate in a low amount.