Day 2 :
Çukurova University, Turkey
Time : 10:00-11:00
Kadir Aydin received his BSc degree in 1983 and MSc degree in 1986 from the Mechanical Engineering Department of Cukurova University. He completed his PhD degree in 1993 at the Department of Mechanical Engineering of Liverpool University. He became Assistant Professor in 1993, Associate Professor in 1995 and Professor in 2001 in the Mechanical Engineering Department of Cukurova University. He is Chairman of Automotive Engineering Department of Cukurova University and also General Manager of Cukurova Technopark. His special research areas are Internal Combustion Engines, Vehicle Technology, Combustion, Hydrogen and Electric Powered Vehicles and Alternative Fuels (Biodiesel, Bioethanol and Biogas). He published more than 150 national and international scientific papers.
Electrolysis is the most common method used to split H2 from water and currently, 12-15% of hydrogen production globally source is presented by electrolysis. Hydroxy Gas (HHO) is a trademark and comes from the separation of water molecules H-OH that contains (theoretically) 66% H2 and 33% O2. It has high calorific value and 1 kg of HHO, is three times as potent as gasoline and eight times as potent as diesel. Also achieving of HHO gas under water electrolysis, several item affected the end product. This affected the efficiency of the HHO generators. Electrolysis uses an electrical current to split water into hydrogen at the cathode (+) and oxygen at the anode (–). Steam electrolysis uses heat, instead of electricity, to provide some of the energy needed to split water and can make the process more energy efficient. In this study, HHO is mixed with air and gasoline in inlet manifold in a gasoline engine and HHO is mixed with air and natural gas during induction stoke and diesel fuel is injected into the cylinder during injection period in a pilot injection diesel engine to measure engine performance and exhaust emission parameters. HHO gas addition to the fossil fuels (gasoline, diesel fuel and natural gas) improved engine performance parameters (power, torque and specific fuel consumption) and reduced exhaust emission parameters. The average power increment in test engines during experiments is bigger than the electrical power consumed and fuel economy obtained with the aid of HHO system as well. This indicates that HHO system is efficient.
Yıldız Technical University, Turkey
Keynote: Layer Protection of Oil Additives, Lubrication-Friction-Wear within Surface Coatings of Piston Rings against Cylinder Liner in Internal Combustion Engines
Time : 11:15-13:15
Hakan Kaleli has completed his PhD in 1995 from Yıldız Technical University, Faculty of Mechanical Engineering, Automotive Division in İstanbul, Turkey. He teaches Internal Combustion Engines, Otto Engine Technology, Diesel Engine Technology, Tribology, Wear Lubrication, Oil Analysis and Cooling in Internal Combustion Engines. He has published many papers in reputed journals and is still working on automobile tribology.
This speech is related to our Joint Research and Development Project (Project No.114M833) signed between 2510-(TÜBİTAK) The Scientific and Technological Research Council of Turkey and (MHESR) The Ministry of Higher Education Scientific Research of Tunisia titled “Investigation of Piston Rings by New Developed Graphene Coating Method for Reducing Wear and Friction in Internal Combustion Engines”. I will talk about some chronological order of my big tribological work since 1999 up to nowadays on crankcase oil additives, lubrication-friction-wear with several coatings (such as zinc phosphate, transferring synthesized method of graphene with support of GrafenBiotech Ltd. i.e.) of piston rings against cylinder liner in reciprocating motion within Tribotest Rigs and I.C. Engine Experiments. Colorful protective additive’s layers formed on the rubbed surfaces under boundary lubrication conditions during experiments where the formal test conditions were applied using real engine material of piston rings and cylinder liner. Wear tracks, protective layers of additives were examined using digital optical, electron microscopy within X-ray diffraction analysis where additive layers were detected in nanoscale dimension.