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Öğe Analysis of combustion, performance and emission characteristics of a diesel engine using low sulfur tire fuel(Elsevier, 2015-03-01) Aydın, Hüseyin; İlkılıç, CumaliAn alternative fuel for diesel engines was produced from waste vehicle tires by the method of pyrolysis. In order to reduce sulfur content of produced the liquid fuels, during the reaction Ca(OH) 2 was used. Then, H 2 SO 4 were used after the reaction and the sulfur content of the product was reduced by 83.75%. The properties of diesel fuel, low sulfur tire fuel and fuel mixtures of low sulfur tire fuel and diesel fuel were found. Then the prepared fuel blends and diesel fuel were tested in a diesel engine. Performance, combustion and emission parameters of the engine when using each fuel were obtained and comparisons were made with D2 fuel. Power, torque and mean effective pressure, mass fuel consumption, effective efficiency and bscf values presented. Results justify that the performance of the engine slightly lowers by using blends of LSTF. Cylinder pressure and heat release rate values of the test fuels usage were quite similar with those of D2. CO, HC, and smoke emissions were slightly higher while NOx emissions were lower for LSTF blends. All of these results indicate that desulfurized tire fuels with low percentages can be used as alternative fuel in diesel engine.Öğe Optimization of fuel production from waste vehicle tires by pyrolysis and resembling to diesel fuel by various desulfurization methods(Elsevier, 2012-12) Aydın, HüseyinIn this study, an alternative fuel for diesel engines was produced from waste automobile tires by the method of pyrolysis. In order to reduce the high sulfur content of the fuel, CaO, Ca(OH) 2, and NaOH catalysts were used. In addition, effects of variables such as temperature, the catalyst ratio and the N2 flow rate on yield were investigated. The highest product yield was obtained with temperature of 500 °C and 200 cm 3/min N 2 flow rate. When compared with the products obtained from initial pyrolysis, the sulfur content of the product was found to be 34.25% lower with the utilization of 5% Ca(OH) 2 in the reaction. In order to make the sulfur content of the product closer diesel fuel, the acetic acidH 2O 2, formic acidH 2O 2 and H 2SO 2 were used in different proportions. Although, the other acids were also very effective, the use of 10% H 2SO 4 reduced sulfur content of the product by 75.27%. Thus, with 5% Ca(OH) 2 and then with addition of 10% H 2SO 4, the sulfur content of the product was reduced by 83.75%. The properties of diesel fuel (DF), liquid fuel derived from waste vehicle tires (TF), low sulfur tire fuel (LSTF) and fuel mixtures of LSTFDF were analyzed. It was found that, the density and sulfur content of LSTF fuel were slightly higher than that of diesel fuel, but other features and distillation curves were very close to diesel fuel.
