Scheduling of Energy-Integrated Batch Process Systems Using a Pattern-Based Framework

Processes

Sujit Suresh Jogwar¹  Shrikant Mete²  ChannamallikarjunS. Mathpati² 

[1] Department of Chemical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India;Department of Chemical Engineering, Institute of Chemical Technology, Mumbai 400019, India;

关键词: batch scheduling;    energy integration;    mixed-integer optimization;    patterns;   

DOI  :  10.3390/pr7020103

来源: DOAJ

【 摘 要 】

In this paper, a novel pattern-based method is developed for the generation of optimal schedules for energy-integrated batch process systems. The proposed methodology is based on the analysis of available schedules for the identification of repetitive patterns. It is shown that optimal schedules of energy-integrated batch processes are composed of several repeating sections (or building blocks), and their sizes and relative positions are dependent on the scheduling horizon and constraints. Based on such a decomposition, the proposed pattern-based algorithm generates an optimal schedule by computing the number and sequence of these blocks. The framework is then integrated with rigorous optimization-based approach wherein it is shown that the learning from the pattern-based solution significantly improves the performance of rigorous optimization. The main advantage of the pattern-based method is the significant reduction in computational time required to solve large scheduling problems, thus enabling the possibility of on-line rescheduling. Three literature examples were considered to demonstrate the presence of repeating patterns in optimal schedules of energy-integrated batch systems. The effectiveness of the proposed methodology was illustrated using an integrated reactor-separator system.

【 授权许可】

Unknown