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Öğe Determination of performance and exhaust emissions properties of B75 in a CI engine application(Journals & Books, 2011-09) Aydın, Hüseyin; İlkılıç, CumaliIn this study, performance and exhaust emissions of biodiesel in a compression ignition engine was experimentally investigated. Therefore, biodiesel has been made by transesterification from cotton seed oil and then it was mixed with diesel fuel by 25% volumetrically, called here as B75 fuel. B75 fuel was tested, as alternative fuel, in a single cylinder, four strokes, and air-cooled diesel engine. The effect of B75 and diesel fuels on the engine power, engine torque and break specific fuel consumption were clarified by the performance tests. The influences of B75 fuel on CO, HC, NOx, Smoke opacity, CO2, and O2 emissions were investigated by emission tests. The engine torque and power, for B75 fuel, were lower than that of diesel fuel in range of 2–3%. However, for the B75, specific fuel consumption was higher than that of diesel fuel by approximately 3%. CO2, CO, HC, smoke opacity and NOx emissions of B75 fuel were lower than that of diesel fuel. The experimental results showed that B75 fuel can be substituted for the diesel fuel without any modifications in diesel engines.Öğe Biyodizelin hava kirliliğine etkisi(Batman Üniversitesi, 2012-06-01) Aydın, Hüseyin; Aydın, Selman; İlkılıç, CumaliBu çalışmada aspir yağından transesterifikasyon (yağın yeniden esterleştirmesi) yöntemi ile biyodizel üretilmiştir. %20 aspir biyodizeli %80 dizel karışımlı yakıt ile normal dizel yakıtı (D2) tek silindirli, dört zamanlı, direkt püskürtmeli ve hava soğutmalı bir dizel motorunda kullanılarak egzoz emisyonları karşılaştırmalı olarak incelendi. Yakıtların test sonuçları karşılaştırıldığında aspir yağı metil esterinin dizel yakıtına göre NOx ve O2 emisyonlarında artış HC, CO2 ve CO emisyonlarında ise azalmalar görülmüştür. Motor emisyonlarında metil ester karışımı (B80) genel itibari ile çevre açısından daha az zararlı olduğu görülmüştür.Öğe Exhaust emissions of a CI engine operated with biodiesel from rapeseed oil(Taylor & Francis, 2011-01-16) Aydın, Hüseyin; İlkılıç, CumaliIn this study, biodiesel was produced from rapeseed oil and was used in a single cylinder, naturally aspirated and direct-injected diesel engine as pure biodiesel (B100) and as a blend with standard diesel fuel by 20% biodiesel to 80% diesel fuel (B20). The diesel engine emissions and some performance parameters were investigated at fully loaded engine conditions. The effects of pure biodiesel and its blend with diesel fuel on emissions of carbon monoxide (CO), nitrogen oxides (NOx), carbon dioxide (CO2), and sulfur dioxide (SO2) were clarified. Results showed that biodiesel fuel is environmentally friendly since it reduced the emissions of CO, SO 2, and CO2 of engines at all speeds. Results also indicated that the pure biodiesel gave about 12% lower power and 20 to 25% higher fuel consumption as compared to diesel. However, the results were almost the same or slightly different from a blend of biodiesel-diesel and petroleum diesel fuel.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 Bir dizel motorunda kanola yağı kullanımında ön-ısıtma işleminin egzoz emisyonlarına etkilerinin deneysel araştırılması(e-Journal of New World Sciences Academy, 2009-03-01) Aydın, Hüseyin; Öner, Cengiz; İlkılıç, Cumali; Hazar, HanbeyBu çalışmanın amacı; bitkisel yağlardan olan kanola yağının önceden ısıtılarak bir dizel motorunda kullanımından kaynaklanan egzoz emisyonlarının nasıl değiştiğini incelemektir. Bu amaçla saf kanola yağı %20 ve %50 oranlarında dizel yakıtı ile karıştırılmış ve bu karışım yakıtlar dört zamanlı, tek silindirli ve hava soğutmalı bir dizel motorda kullanılmıştır. Karışım yakıtlar kullanım sırasında 100o C sıcaklığa kadar ısıtıldıktan sonra kullanılmış ve bu ön ısıtma işleminin dizel motorda ısıl verim, egzoz gazı sıcaklığı, NOx, CO ve duman emisyonlarına etkileri araştırılmıştır. Ön ısıtma işleminin CRO’ nun viskozitesini azalttığı ve daha uygun bir yakıt akışı sağlayarak emisyonlar üzerinde olumlu etki yaptığı sunucuna varılmıştırÖğe Terebinth oil for biodiesel production and its diesel engine application(Journals & Books, 2015-08) Aydın, Hüseyin; İlkılıç, Cumali; Çılğın, ErdalIn this study, biodiesel was produced from terebinth oil by the well known transesterification process in the methyl alcohol environment. Terebinth is non-edible oil, thus food versus fuel conflict will not arise if this is used for biodiesel production. The optimum conditions of transesterification process for biodiesel production are investigated in this study. A maximum of 77% biodiesel was produced with 20% methanol in presence of 1% sulphuric acid (H2SO4). The resulting biodiesel is quite similar to conventional diesel fuel in its main characteristics. The obtained biodiesel from terebinth oil was added to diesel fuel volumetrically by 10% and 50%. The fuel mixtures that obtained from the addition of 10% and 50% of biodiesel were named here as B10 fuel and B50 fuel. Performance and exhaust emissions of biodiesel in a compression ignition engine were experimentally investigated. Biodiesel blends have lowered power output with increased brake specific fuel consumption (Bsfc) probably due to the lower heating value of biodiesel. The engine experimental results showed that exhaust emissions including carbon monoxide (CO), carbon dioxide (CO2), and hydrocarbons (HC) were reduced for all biodiesel fuel mixtures. However, a slight increase in oxides of nitrogen (NOx) emission was experienced for biodiesel mixtures.Öğe The harmful effects of diesel engine exhaust emissions(Taylor & Francis, 2012-03-16) İlkılıç, Cumali; Aydın, HüseyinWith the increase in the number of engine vehicles, air pollution is also increasing quickly; and with the increase in air pollution, all living conditions are affected in a negative way. Diesel engines also cause air pollution, which adversely affects human health and is becoming a permanent problem. A single-cylinder diesel engine was used in this work; the exhaust gas emissions, in different speed ranges, were investigated. These emissions are carbon monoxide emissions (CO), nitrogen oxides (NO x), oxygen (O 2), and carbon dioxide (CO 2). The amount of the changes in emissions was evaluated in terms of air pollution with graphics.Öğe Effect of ethanol blending with biodiesel on engine performance and exhaust emissions in a CI engine(Elsevier, 2010-02-02) Aydın, Hüseyin; İlkılıç, CumaliThe use of biodiesel as an alternative diesel engine fuel is increasing rapidly. However, due to technical deficiencies, they are rarely used purely or with high percentages in unmodified diesel engines. Therefore, in this study, we used ethanol as an additive to research the possible use of higher percentages of biodiesel in an unmodified diesel engine. Commercial diesel fuel, 20% biodiesel and 80% diesel fuel, called here as B20, and 80% biodiesel and 20% ethanol, called here as BE20, were used in a single cylinder, four strokes direct injection diesel engine. The effect of test fuels on engine torque, power, brake specific fuel consumption, brake thermal efficiency, exhaust gas temperature, and CO, CO2, NOx and SO2 emissions was investigated. The experimental results showed that the performance of CI engine was improved with the use of the BE20 especially in comparison to B20. Besides, the exhaust emissions for BE20 were fairly reduced.Öğe Emissions from an engine fueled with biodiesel-kerosene blends(Taylor & Francis, 2011-01) Aydın, Hüseyin; Bayındır, Hasan; İlkılıç, CumaliBiofuels are renewable energy sources for internal combustion engines and they have low emissions. They are increasingly used as an alternative to petroleum fuels. In this work, three different fuel types, such as commercial diesel fuel (D2), 20% biodiesel and 80% diesel fuel called here as B20, and 80% biodiesel and 20% kerosene, called here as BK20, were used in a single cylinder, four stroke, direct injection compression ignition engine. Kerosene was used as an additive to approach the properties of biodiesel to D2. The effects of the blends on CO, NOx, and smoke emissions as well as on some of the performance parameter of the engine were investigated. The prepared fuel, BK20 blend, has almost the same fuel properties as conventional diesel fuel. The experimental results showed that the exhaust emissions for BK20 were fairly reduced as compared to diesel fuel as well as B20. Besides, the performance of CI engine was improved with the use of the BK20, especially in comparison to B20. Results suggest that the BK20 can be substituted to the petroleum-based diesel fuel in diesel engines.Öğe Fuel production from waste vehicle tires by catalytic pyrolysis and its application in a diesel engine(Journals & Books, 2011-05) Aydın, Hüseyin; İlkılıç, CumaliAn alternative fuel production was performed by pyrolysis of waste vehicle tires under nitrogen (N2) environment and with calcium hydroxide (Ca(OH)2) as catalyst. The sulfur content of liquids obtained were reduced by using Ca(OH)2. The liquid fuel of waste vehicle tires(TF) was then used in a diesel engine to blend with petroleum diesel fuel by 5%(TF5), 10%(TF10), 15%(TF15), 25%(TF25), 35%(TF35), 50%(TF50), and 75%(TF75) wt. and pure (TF100). Performance characteristics such as engine power, engine torque, brake specific fuel consumption (bsfc) and exhaust temperature and emission parameters such as oxides of nitrogen (NOx), carbon monoxides (CO), total unburned hydrocarbon (HC), sulfur dioxides (SO2) and smoke opacity of the engine operation with TF and blend fuels of TF–diesel were experimentally investigated and compared with those of petroleum diesel fuel. It was concluded that the blends of pyrolysis oil of waste tires TF5, TF10, TF25 and TF35 can efficiently be used in diesel engines without any engine modifications. However, the blends of TF50, TF75 and TF100 resulted considerably to high CO, HC, SO2 and smoke emissions.
