Department of Chemical Engineering, Faculty of Engineering
Department of Chemical Systems and Engineering, Graduate School of Engineering
Department of Materials Science and Engineering, Chemical Engineering Course, School of Engineering
Our laboratory is developing computer-aided systems for supporting the design and operation of chemical processes in consideration with the environment and safety. Our main subjects are as follows. (1) Process design: multi-agent systems framework is introduced to a decision making problem with multi-object and multi-subject such as a trade-off problem between the energy cost and the equipment cost. (2) Operation management: Signed digraphs (SDG) are very useful to represent the cause-effect relationship in a chemical plant. The fault diagnosis system based on SDG has been developed in order to assist operator judgment and decision making when an abnormal situation happens in a chemical plant. Additionally, we have developed a system for estimating errors contained in measurements of sensors during normal operation. (3) Safety assessment: we have proposed a system for generating a route of fault propagation using the concept of SDG to support HAZOP study.