FRAMEWORK OF DYNAMIC SIMULATION FOR COMPLEX CHEMICAL PROCESSES

The current state of the art of a modelling and dynamic simulation sys tem for complex chemical and biochemical processes is discussed. Proce ss modelling activity involves modelling a physical plant and external tasks imposed on the plant, and details of both aspects are discussed . Typical software structure is concerned with a model builder, result analyser, translator, solution methods, moder library and external so ftware interface. Some of them are explained in moderate depth. Recent progress of functionality and numerical methods is presented. Numeric al methods incorporating symbolic and structural techniques improve ac curacy and efficiency. Ln order to illustrate benefits of employing dy namic simulation tools, one typical chemical process consisting of a m ixing tank, tubular reactor and gas absorber is chosen and dynamic sim ulation is carried out. Taking into account the work in this paper, so me suggestions for future development of a unified framework of a mode lling package are made.