Optimal allocations of area margins and spares to accommodate HEN cleaning schedules

Bo Jyun Liao, Kuang Ting Yi, Chuei-Tin Chang

研究成果: Conference contribution

摘要

Due to fouling in one or more heat-transfer unit, the target temperatures of process streams in a heat exchanger network (HEN) may not be achievable after a sufficiently long period of operation. To circumvent this practical problem, a given HEN design should be modified to accommodate online cleaning operations via proper allocation of area margins and spares. Specifically, the candidate units for incorporating margins can be first identified on the basis of sensitivity analysis. The potential locations of additional auxiliary heaters/coolers and bypasses can then be determined according to the heat-load loops and paths embedded in HEN so as to facilitate compensation of the removed duties during defouling. The optimal design refinements and also the spare-supported cleaning schedule can be generated by solving a mathematical programming model formulated on the basis of a superstructure. A simple example is presented in this paper to illustrate the proposed modeling procedure and to demonstrate the feasibility of this scheduling approach.

原文English
主出版物標題2017 6th International Symposium on Advanced Control of Industrial Processes, AdCONIP 2017
發行者Institute of Electrical and Electronics Engineers Inc.
頁面37-42
頁數6
ISBN(電子)9781509043972
DOIs
出版狀態Published - 2017 7月 18
事件6th International Symposium on Advanced Control of Industrial Processes, AdCONIP 2017 - Taipei, Taiwan
持續時間: 2017 5月 282017 5月 31

Other

Other6th International Symposium on Advanced Control of Industrial Processes, AdCONIP 2017
國家/地區Taiwan
城市Taipei
期間17-05-2817-05-31

All Science Journal Classification (ASJC) codes

  • 製程化學與技術
  • 工業與製造工程
  • 控制和優化
  • 建模與模擬

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