题目：Flameless Combustion Extension to Gas Turbine Combustors/Toward Net-zero Energy Conversion by Using Next Generation Fuels
时间：2024年9月22日 14:30-16:30
地点：机械与动力工程学院 F310会议室
邀请人：王国情 副教授（航空动力研究所）
报告题目：Flameless Combustion Extension to Gas Turbine Combustors
报告人：Assoc. Prof. Amir Mardani (Sharif University of Technology)
Biography
Amir Mardani is an Associate Professor in the Aerospace Engineering Department at Sharif University of Technology (SUT) in Iran. He completed his secondary education at Alborz High School and earned his Bachelor’s degree in Mechanical Engineering from Khajeh Nasir Toosi University of Technology in 2003, specializing in Heat and Fluid Mechanics. He then continued his academic journey at Amirkabir University of Technology, obtaining his M.Sc. in Mechanical, Aerospace, and Maritime Engineering with a focus on Propulsion, followed by a Ph.D. from 2005 to 2010.
In 2011, Amir joined the Propulsion Group at SUT as an Assistant Professor and secured a permanent position in 2014. He has collaborated with several companies in the energy sector as a project manager and consultant. In 2019 he invited to participate in the Talented Young Scientist Program (TYSP) jointly organized by the United Nations Conference for Trade and Development (UNCTAD) and the Ministry of Science and Technology, P.R. China. In 2023, he became a Brain Pool Fellow at Pusan National University, where he is working on the Ammonia MILD Burner project in collaboration with Professor Kyung Chun Kim, supported by a grant from the National Research Foundation of South Korea.
Amir has experience in teaching heat, combustion, and fluid science, and he has developed the advanced fuel and combustion laboratory at SUT. His primary research focuses on experimental and numerical investigations of combustors, particularly within the MILD (Moderate or Intense Low-oxygen Dilution) combustion regime. He explores both common and emerging fuels such as methane, propane, kerosene, hydrogen, and ammonia, as well as swirl combustors and plasma-assisted combustion techniques. His work has earned him several national and international awards in teaching, research, and project supervision.
In addition to his academic contributions, Amir has been actively involved in advancing the field of combustion through various nonprofit activities. He served on the board of the Combustion Institute/Iranian Section from 2011 to 2015 and Director of international affairs of combustion institute/ Iranian section, 2014-2023, acted as the executive chair of the first Iranian Combustion Summer School in 2019, and organized multiple workshops on combustion and propulsion from 2010 to 2018.
Abstract
Global warming and the depletion of fossil fuel sources urge researchers to pursue more efficient combustion technologies and alternative fuels. Among these, MILD (Moderate or Intense Low-oxygen Dilution) combustion, characterized by a high level of dilution and preheating, has shown significant potential for application in various combustors. The critical role of chemical timescales in combustion regimes is also linked to fuel type and burner geometry, making it essential to explore their implementation in new areas, such as gas turbine combustors, particularly with complex fuels like kerosene and emerging fuels like hydrogen and ammonia.
In the present seminar, some numerical and experimental investigations conducted by our research group will be discussed. We will first define MILD combustion and address its specific characteristics. Next, we will present our efforts in utilizing MILD combustion through various model burners, including our studies on spray MILD combustion for ethanol and kerosene, swirl combustion of kerosene, and double swirl combustion of propane. Finally, we will highlight our recent research on ammonia MILD combustion.
报告题目：Toward Net-zero Energy Conversion by Using Next Generation Fuels
报告人：Dr. Sechul Oh (Pusan National University)
Biography
Sechul Oh is an assistant professor in School of Mechanical Engineering, Pusan National University (PNU). He received B.S. degree and MS/Ph.D. integrated degree from Mechanical Engineering, Seoul National University in 2013 and 2019, respectively. After the graduation, he worked as a senior researcher at Korea Institute of Machinery and Materials (KIMM) located in Daejeon, South Korea from 12/2020. After that, he joined PNU and has been a principal investigator of Advanced Fuel and Regenerated Energy Laboratory (AFREL) from 03/2024.
His main research interests are generation/usage of next generation fuels – hydrogen, ammonia – and its emissions characteristics for internal combustion engine by using 0D simulation and lab-scale experiments (MILD combustion burner, CVCC, and catalyst test facilities). He is also recently working on finding feasibility of e-fuel generation for maritime propulsion from LCA/TEA point of view.
Abstract
As "global boiling" has become a critical issue nowadays, reducing greenhouse gases (GHGs) is one of the most important objectives to make sustainable future of mankind. Accordingly, replacing fossil fuels with next generation fuels such as hydrogen, ammonia, and e-fuel is suggested as a promising strategy to reduce GHGs from combustion-based energy conversion systems – gas turbine, boiler, and internal combustion engine, from a life cycle assessment (LCA) standpoint. However, there are lots of problems that should be solved to apply those fuels to the systems, especially considering their combustion and emission characteristics. In addition, they should be proved as being ‘net-zero’ from well-to-wheel (WtW) – not just usage but its production.
In this presentation, we will consider basic characteristics of hydrogen and ammonia, especially the issues related to combustion and emissions. In addition, experimental and simulation data of using those fuels for internal combustion engine will be introduced. After that, the innovative way to reduce emissions from hydrogen and ammonia combustion will be briefly present. With consideration of LCA point of view, the feasibility of using these fuels in several industrial fields will be discussed in detail.
