Optimal Sensor Location and State Estimation for Tubular Microreactors
In order to use micro chemical process technology in production processes, a number of technical and economical requirements have to be met. One of the dominant requirements is to ensure long-term stable operation of micro chemical processes by using suitable process monitoring and control techniques. Although miniaturized sensors have been developed, it is still physically difficult to install many sensors in a microchannel, and the installation of such sensors sometimes disturbs the flow. Therefore, it is important to develop a state estimation system that makes it possible to reconstruct unmeasured variables from a few on-line measured variables. To achieve the best performance of the state estimation system, the sensors also have to be placed at the optimal locations. In this research, a process monitoring system of a tubular microreactor in which a first-order exothermic catalytic reaction takes place is developed, and the optimal location of a single temperature sensor is derived to achieve the most accurate estimation of the product concentration profile. The results of the case studies indicate that the heat capacity of walls should be modeled, which is often ignored in conventional reactors, and that the derived optimal sensor location is robust against the variation of operating conditions.
Tubular microreactor Sensor location State estimation Process monitoring Robustness
Takayuki Tominari Satoshi Nagahara Osamu Tonomura Manabu Kano Shinji Hasebe
Dept.of Chemical Engineering,Kyoto University,Kyoto 615-8510,Japan
国际会议
西安
英文
2007-08-15（万方平台首次上网日期，不代表论文的发表时间）