报告主题：Process simulation, optimization, and control of cryogenic air separation units with frequent load change
报告时间：1月14日周四下午15:00
报告地点：实验15楼207
陈曦 博士
浙江大学控制科学与工程学系教授，博士生导师。1993年获浙江大学化学工程专业工学学士学位，1996年获浙江大学系统工程专业工学硕士学位，2002年获浙江大学控制科学与工程专业工学博士学位，1998-2001年在香港科技大学进行博士联合培养。2001年9月份起在浙江大学控制系任教，2010年晋升教授。先后获得教育部科技进步一等奖和教育部自然科学一等奖各一次，2005年获美国塑料工程师协会(Society of Plastics Engineers)年会SPE Annual Technical Conference的最佳论文奖，2009年入选浙江省新世纪151人才工程第三层次培养人员，2013年入选教育部新世纪优秀人才支持计划。2011至2012年担任美国塑料工程师协会过程监测与控制分支机构主席。主要研究方向包括复杂系统的建模与优化、大规模优化算法、并行计算、分子模拟等。
Title: Process simulation, optimization, and control of cryogenic air separation units with frequent load change
Abstract: Cryogenic air separation unit (ASU) is an important industrial process that provides high-purity gaseous and liquid products. Due to the complex heat integration in the process, simulation and optimization of ASUs often fails to converge with traditional algorithms. In this talk, a homotopy-based backtracking method (HBM) is presented and applied to the process operation of a cryogenic ASU under wide changes in load conditions. In response to the frequently changing demands on gaseous products, an automatic load change (ALC) system is developed by integrating process optimization with nonlinear model predictive control. To further improve the computational efficiency, a complete equation-oriented (EO) approach is proposed for the process analysis on ASUs.
Bio: Xi Chen is a Professor in the Department of Control Science and Engineering, Zhejiang University, China. His research focuses on process systems engineering. Dr. Chen was the Chair of Process Monitoring & Control Division, Society of Plastics Engineers (SPE) in 2011-2012. He is also an Editorial Board Member of Journal of Automation in Petro-chemical Industry (China). He received the Natural Science Award of Ministry of Education in China in 2013, and the Science and Technology Progress Award of Ministry of Education in China in 2005. He also won the best paper award of the SPE Annual Technical Conference (ANTEC), Boston, USA, in 2005. He obtained his B.S. degree in Chemical Engineering, M.S in Systems Engineering, and Ph.D. in Control Science and Engineering, from Zhejiang University in 1993, 1996, and 2001, respectively.