主讲人：Prof. Serhiy I. Serbin（乌克兰造船科学院和国际海洋科学、技术和创新学院院士；乌克兰马卡罗夫海军上将国立造船大学教授。）
时间：2025年5月15日（周四）13:40—15:10
地点：竞慧楼301
主讲人简介：
Prof. Serhiy I. Serbin was born on April 29, 1958, in Mykolaiv, Ukraine. He received the M.S. (Dipl. Mech. Eng.) and Ph.D. (Cand. Sc. Tech.) degrees in mechanical engineering from the Mykolaiv Shipbuilding Institute, Ukraine, in 1981 and 1985, respectively, and the Dipl. D. Sc. Tech. and Dipl. Prof. degrees from the National University of Shipbuilding, Ukraine, in 1999 and 2002, respectively.
Since 1984, he has worked with the Ukrainian State Maritime Technical University as an Assistant Professor, Senior Lecturer, and Associate Professor. Since 1999, he has been working with the Admiral Makarov National University of Shipbuilding (NUS) as a Professor of the Turbine Units Department. Since 2009, he has been the Director of the Mechanical Engineering Institute of NUS. His research interests are marine and stationary power plants, gas turbine units, decarbonization systems, fuel cells, plasma-chemical combustion, the techniques of intensifying the processes of hydrocarbon-fuels ignition and combustion in power engineering, and combustion and plasma processes modeling.Dr. Serbin is the Academician of the Academy of Shipbuilding Sciences of Ukraine and the International Academy of Maritime Sciences, Technologies and Innovations.
讲座内容：
The advancement of marine power plants involves improving their efficiency and significantly reducing pollutant emissions, which necessitates a transition to carbon-free fuels. This chapter explores the development of a marine energy system tailored for decarbonization using hydrocarbon feedstocks and ammonia, integrating solid oxide fuel cells (SOFCs) with a gas turbine. Theoretical studies were conducted to evaluate the potential of hybrid SOFC–gas turbine (SOFC-GT) systems for marine power applications. Currently, the full potential of these systems remains unrealized due to challenges such as the insufficient reliability and durability of SOFCs, as well as inefficiencies in heat recovery processes within the gas turbine section of the power plant. Unlike previous research, this study highlights the feasibility of employing a steam-injected gas turbine (STIG) cycle and an overexpanded turbine to optimize exhaust gas heat recovery from fuel cells, enhance overall system efficiency, and extend the lifespan of critical components. To support this approach, a comprehensive mathematical model was developed, accompanied by optimization calculations for the proposed cycles. Key parameters, such as compressor and expander pressure ratios, were identified as pivotal for increasing specific power output. Implementation of the proposed STIG cycle with overexpanded gas turbine led to a 4.4% improvement in system efficiency compared to conventional configurations. Furthermore, three-dimensional computational fluid dynamics (CFD) simulations were performed to analyze the combustion of SOFC off-gas in various afterburner designs. The aerodynamic characteristics of chemically reactive flows were examined, along with the formation mechanisms of toxic components during the combustion of low-heating-value SOFC off-gas. The proposed systems demonstrate significant potential for incorporation into the design of next-generation marine power plants, offering a pathway toward cleaner and more efficient maritime energy solutions.
