Stability of limit cycle of distributed parameter heat exchangers controlled by the manipulation of flow rate

✍ Scribed by H. Kanoh

• Publisher: Elsevier Science
• Year: 1983
• Tongue: English
• Weight: 716 KB
• Volume: 315
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(83)90063-7

✦ Synopsis

We study the stability of the limit cycle of parallel flow and counter flow heat exchangers PI-controlled byjlow rate manipulation. The multi-scale perturbation method is used to investigate the stability of the limit cycle of a higher order polynomial nonlinear system which is an approximate model of heat exchangers. A condition is obtained for the limit cycle to be stable or unstable to a small deviation of feedback gain from the stability boundary. Several examples of paralleljow and counterjow heat exchangers are used to illustratefeatures of the dynamics of heat exchangers.