Synthesis of heat exchange networks by mixed integer optimization

✍ Scribed by R. C. Kelahan; J. L. Gaddy

• Publisher: American Institute of Chemical Engineers
• Year: 1977
• Tongue: English
• Weight: 711 KB
• Volume: 23
• Category: Article
• ISSN: 0001-1541
• DOI: 10.1002/aic.690230607

✦ Synopsis

Abstract

Process synthesis involves manipulation of the process arrangement, while studying the variables of each arrangement, to arrive at the optimal process. If each process arrangement is treated as a discrete variable, process synthesis becomes a mixed integer optimization problem. This paper examines the synthesis of heat exchanger networks using the adaptive random search procedure, which can be used to search continuous and discrete independent variables simultaneously. The means of handling the heat exchanger arrangement as a discrete variable is discussed, and the incorporation of various synthesis heuristics is presented. The results of synthesis of 2 × 2, 2 × 3, and 3 × 3 networks are presented and compared with other methods of synthesis.