Modeling And Simulation Of A Batch Sugar Boiling Process

The process of sugar production consists mainly of canesugar crushing, purification, evaporation, crystallization (sugar boiling). The purpose of sugar boiling is to recover as much sugar from the syrup as possible, in the mean time, the size of the crystal should be as unin as possible. Therefore, the result of sugar boiling draw a decisive influence on the quality and quantity of the production. At present, all the process of sugar production except sugar boing have realize the automation. There are three main reasons. Firstly, there is no way to directly measure OS and CC online so far. Secondly, too many disturbances exists in the sugar production process. Thirdly, no good model is available that is suitable for industry production.The aim of this research is to set up a model for batch sugar boiling which is based on practical industry production process.The author make a systemic review on the development of sugar crystallization theory, and introduce the concept of joint distribution of crystal size and crystal gworth rate to discribe the boiling process according to the theory of GRD. The results of simulation show that the model has a wide applicability and flexibility.During the research, the author find that the initial conditios have a remarkable effect on the result of the model. Due to the time and the author ability limit, no further inverstigation about this is done. Furthermore, no boundary conditions are given to some unnormalcircumstances which may happen in the sugar boiling process. It is for sure that the overcome of the above question will upgrade the applicability and flexibility of the model, therefore is the direction of following research.