Modelling aspects regarding the control in 13C isotope separation column

4th ModTech International Conference - Modern Technologies in Industrial Engineering

Boca, M.L.^1

University 1 Decembrie 1918 of Alba Iulia-Romania, Faculty of Science and Engineering, Blvd. N. Iorga, No. 11-13, Alba Iulia

515900, Romania^1

关键词: Internal Logistics;    Isotope separation columns;    Manufacturing control;    Manufacturing control systems;    Manufacturing process;    PLC (programmable logic controller);    Temperature and pressures;    UML (unified modelling language);   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/145/4/042022/pdf
DOI  :  10.1088/1757-899X/145/4/042022

来源: IOP

【 摘 要 】

Carbon represents the fourth most abundant chemical element in the world, having two stable and one radioactive isotope. The13Carbon isotopes, with a natural abundance of 1.1%, plays an important role in numerous applications, such as the study of human metabolism changes, molecular structure studies, non-invasive respiratory tests, Alzheimer tests, air pollution and global warming effects on plants [9] A manufacturing control system manages the internal logistics in a production system and determines the routings of product instances, the assignment of workers and components, the starting of the processes on not-yet-finished product instances. Manufacturing control does not control the manufacturing processes themselves, but has to cope with the consequences of the processing results (e.g. the routing of products to a repair station). In this research it was fulfilled some UML (Unified Modelling Language) diagrams for modelling the C13Isotope Separation column, implement in STARUML program. Being a critical process and needing a good control and supervising, the critical parameters in the column, temperature and pressure was control using some PLC (Programmable logic controller) and it was made some graphic analyze for this to observe some critical situation than can affect the separation process. The main parameters that need to be control are: -The liquid nitrogen (N2) level in the condenser. -The electrical power supplied to the boiler. -The vacuum pressure.