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Hasan Koten, Speaker at Materials Science Conferences
Individual Researcher, Turkey
Title : Hydraulic Performance of a Centrifugal Pump and Hydrophobic Surface Effects


Increasing amounts of consumption led people make technological improvements about energy efficiency. One of these improvements which is called biomimicry, which imitates structures and systems at nature, can be applied in various areas where decrease of energy losses are desired. It is mostly believed that decreasing sand grain roughness on surfaces decreases friction losses that can be obtained from low surface energy. This case can be seen at leaves of Lotus (N. nucifera) which shows hydrophobic properties on its surfaces. In this study, efficiency of pump and its characteristics are examined with CFD methods and performance tests. Inner surfaces of volute and impeller itself are coated to gain features of hydrophobic surfaces. Characterization of hydrophobic surfaces in flow simulations are validated with comparison of test results. To investigate the influence of low energy surfaces on hydrophobic coating, closed-loop tests are conducted using relevant measurement techniques as per international standards. made with necessary equipment. Results show that performance curves of the pump has been improved and efficiency of the pump is increased by 8.3% at its best efficiency point.


Assoc. Prof. Hasan KOTEN graduated from Mechanical Engineering Department with honor of degree in 2007. At the same time, he received a BSc degree in Electrical and Electronics Engineering Department as a double major. Hasan KOTEN worked in the first full geometry engine design project for The Scientific and Technological Research Council of Turkey (TUBITAK). During his Ph.D., he worked as a visiting scholar at the Ohio State University Center for Automotive Research (CAR). Hasan KÖTEN also worked as a consultant for TUBITAK Domestic Electric Vehicle Design project in 2017. He attended to CEDP group at Brunel University as a post-doctorate researcher in 2018. He leaded number of projects, MSc and PhD thesis in this combustion field. He attended and presented more than 100 conference proceedings and published about 50 articles indexed in SCI and SCI-e. He is awarded by TUBITAK 2238 programme with first degree over all national PhD thesis applications. Assoc. Dr. Hasan KÖTEN is still working at the mechanical engineering department of Istanbul Medeniyet University. Currently, He is working at Turkey's largest TÜBİTAK budgeted 2400HP 16 and 8-cylinder engine production project.