Cüneyt Ezgi and Ergin Kosa
Scientific Tracks Abstracts: Adv Automob Eng
Steam ejector refrigeration systems are a promising tool for energy efficiency. The aim of this paper is to design exhaust gas heat-driven ejector cooling system in an automobile. The system uses water as the working fluid. The water will be boiled in waste heat boiler by exhaust gas heat and sent to steam ejector utilized instead of compressor in conventional refrigeration systems. At various speed of an automobile, COP (Coefficient of Performance) and cooling capacity is investigated. Therefore, cooling is provided in evaporator, although COP is quite low in ejector refrigation cooling system, the fuel consumption and green house gas emissions is reduced in the ejector refrigeration system. In addition to energy efficiency, since this refrigeration system has a compressor, it operates under low sound levels and provides less maintenance.
Cüneyt Ezgi is an Associate Professor in the Department of Mechanical Engineering at Beykent University. He graduated from the Mechanical Engineering in Gazi University in 1991. He joined Turkish Naval Forces in 1993 as engineer officer. Dr. Ezgi received his Msc and Ph.D. degrees in the Department of Mechanical Engineering in Ege University in 2004 and 2009. He retired from Turkish Naval Forces at rank of Naval Engineer Captain in 2016. His general research interests are heat transfer, thermodynamics, thermal systems engineering, heat exchangers, heat pumps, renewable energy technologies and fuel cells. Ergin KOSA is an Assistant Professor in the Department of Mechanical Engineering at Beykent University. He received his Bachelor (2008), Msc (2010) and Ph. D.(2016) degrees from İstanbul Technical University in Department of Mechanical Engineering. His research interests are fuel cells modeling, thermodynamics, erosive and abrasive wear, electroless coatings, compliant-MEMs, solar cells, sculptured thin films and solar cells.
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