Bypass Selection for Control of Heat Exchanger Network

孙琳; 罗雄麟; 侯本权; 白玉杰

doi:10.1016/S1004-9541(13)60472-5

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Bypass Selection for Control of Heat Exchanger Network

过程系统工程与过程安全 | Updated：2026-01-06

- Bypass Selection for Control of Heat Exchanger Network
- Bypass Selection for Control of Heat Exchanger Network
- 中国化学工程学报（英文版） 2013年21卷第3期页码：276-2841004-954160472-5
- Affiliations：
  
  2 Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC V6T1Z3,Canada
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(13)60472-5
  中图分类号：
- 纸质出版：2013
- Accepted：
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孙琳, 罗雄麟, 侯本权, 等. Bypass Selection for Control of Heat Exchanger Network[J]. 中国化学工程学报（英文版）, 2013,21(3):276-2841004-954160472-5.

SUN Lin, LUO Xionglin, HOU Benquan, BAI Yujie . Bypass Selection for Control of Heat Exchanger Network[J]. Chin.J.Chem.Eng., 2013, 21(3): 276-284.
孙琳, 罗雄麟, 侯本权, 等. Bypass Selection for Control of Heat Exchanger Network[J]. 中国化学工程学报（英文版）, 2013,21(3):276-2841004-954160472-5. DOI： 10.1016/S1004-9541(13)60472-5.

SUN Lin, LUO Xionglin, HOU Benquan, BAI Yujie . Bypass Selection for Control of Heat Exchanger Network[J]. Chin.J.Chem.Eng., 2013, 21(3): 276-284. DOI： 10.1016/S1004-9541(13)60472-5.

摘要

Abstract

Considering the flexibility and controllability of heat exchanger networks (HENs)

bypasses are widely used for effective control of process stream target temperatures. However

the optimal location for the bypass is generally difficult to design with the trade-off between controllability and capital investments. In this paper

based on the steady-state model of heat exchanger networks the optimal bypass location was firstly selected by iteratively calculating the non-square Relative Gain Array (ns-RGA). To simplify the calculation process

rules of bypass selection were also proposed. In order to evaluate this method

then

the structural controllability of heat exchanger networks was analyzed. With both the consideration of the controllability and capital investments

the bypasses locations were finally selected. A case study on the HEN in Crude Distillation Unit was presented in which the ns-RGA and structural controllability were used to select bypasses and also to evaluate the results.

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