Strategy for Synthesis of Flexible Heat Exchanger Networks Embedded with System Reliability Analysis

doi:10.1016/S1004-9541(13)60541-8

Chin.J.Chem.Eng. ›› 2013, Vol. 21 ›› Issue (7): 742-753.DOI: 10.1016/S1004-9541(13)60541-8

• PROCESS SYSTEMS ENGINEERING • Previous Articles Next Articles

Strategy for Synthesis of Flexible Heat Exchanger Networks Embedded with System Reliability Analysis

YI Dake, HAN Zhizhong, WANG Kefeng, YAO Pingjing

Institute of Process Systems Engineering, Dalian University of Technology, Dalian 116024, China

Received:2012-07-20 Revised:2012-11-29 Online:2013-08-24 Published:2013-07-28

Strategy for Synthesis of Flexible Heat Exchanger Networks Embedded with System Reliability Analysis

依大科, 韩志忠, 王克峰, 姚平经

Institute of Process Systems Engineering, Dalian University of Technology, Dalian 116024, China

通讯作者: YAO Pingjing

Abstract

Abstract: System reliability can produce a strong influence on the performance of the heat exchanger network (HEN). In this paper, an optimization method with system reliability analysis for flexible HEN by genetic/simulated annealing algorithms (GA/SA) is presented. Initial flexible arrangements of HEN is received by pseudo-temperature enthalpy diagram. For determining system reliability of HEN, the connections of heat exchangers(HEXs) and independent subsystems in the HEN are analyzed by the connection sequence matrix(CSM), and the system reliability is measured by the independent subsystem including maximum number of HEXs in the HEN. As for the HEN that did not meet system reliability, HEN decoupling is applied and the independent subsystems in the HEN are changed by removing decoupling HEX, and thus the system reliability is elevated. After that, heat duty redistribution based on the relevant elements of the heat load loops and HEX areas are optimized in GA/SA. Then, the favorable network configuration, which matches both the most economical cost and system reliability criterion, is located. Moreover, particular features belonging to suitable decoupling HEX are extracted from calculations. Corresponding numerical example is presented to verify that the proposed strategy is effective to formulate optimal flexible HEN with system reliability measurement.

Key words: flexible heat exchanger network synthesis, system reliability, network decoupling, independent subsystem

摘要： System reliability can produce a strong influence on the performance of the heat exchanger network (HEN). In this paper, an optimization method with system reliability analysis for flexible HEN by genetic/simulated annealing algorithms (GA/SA) is presented. Initial flexible arrangements of HEN is received by pseudo-temperature enthalpy diagram. For determining system reliability of HEN, the connections of heat exchangers(HEXs) and independent subsystems in the HEN are analyzed by the connection sequence matrix(CSM), and the system reliability is measured by the independent subsystem including maximum number of HEXs in the HEN. As for the HEN that did not meet system reliability, HEN decoupling is applied and the independent subsystems in the HEN are changed by removing decoupling HEX, and thus the system reliability is elevated. After that, heat duty redistribution based on the relevant elements of the heat load loops and HEX areas are optimized in GA/SA. Then, the favorable network configuration, which matches both the most economical cost and system reliability criterion, is located. Moreover, particular features belonging to suitable decoupling HEX are extracted from calculations. Corresponding numerical example is presented to verify that the proposed strategy is effective to formulate optimal flexible HEN with system reliability measurement.

关键词: flexible heat exchanger network synthesis, system reliability, network decoupling, independent subsystem

YI Dake, HAN Zhizhong, WANG Kefeng, YAO Pingjing . Strategy for Synthesis of Flexible Heat Exchanger Networks Embedded with System Reliability Analysis[J]. Chin.J.Chem.Eng., 2013, 21(7): 742-753.

依大科, 韩志忠, 王克峰, 姚平经. Strategy for Synthesis of Flexible Heat Exchanger Networks Embedded with System Reliability Analysis[J]. Chinese Journal of Chemical Engineering, 2013, 21(7): 742-753.

References

1 Swaney, R.E., Grossmann, I.E., “An index for operational flexibility in chemical process design (I) Formulation and theory”, AIChE J., 31 (1), 621-630 (1985).

2 Kotjabasakis, E., Linnhoff, B., “Sensitivity tables for the design of flexible processes (1) How much contingency in heat exchanger networks is cost effective”, Chem. Eng. Res. & Des., 64 (3), 197-211 (1986).

3 Grossmann, I.E., Floudas, C.A., “Active constraint strategy for flexibility analysis in chemical processes”, Comp. Chem. Eng., 11 (6), 675-693 (1987).

4 Aaltola, J., “Simultaneous synthesis of flexible heat exchanger network”, Appl. Therm. Eng., 22 (8), 907-918 (2002).

5 Verheyen, W., Zhang, N., “Design of flexible heat exchanger network for multi-period operation”, Chem. Eng. Sci., 61 (23), 7730-7753 (2006).

6 Chen, C.L., Hung, P.S., “Synthesis of flexible heat exchange networks and mass exchange networks”, Comp. Chem. Eng., 31 (12), 1619-1632 (2007).

7 Ma, X.K., “Study on flexible synthesis of multi-stream heat exchanger network in the low temperature processes”, Ph. D. Thesis, Dalian University of Technology, China (2007). (in Chinese)

8 Jalal, S., “Multi-objective reliability optimization of series-parallel systems with a choice of redundancy Strategies”, Reliab. Eng. Syst. Saf., 108 (12), 10-20 (2012).

9 Stefano, L.R., Paolo V., “Investigation of the structure of a networked system”, Reliab. Eng. Syst. Saf., 107 (11), 214-223 (2012).

10 Graham, B., “Improving network reliability: Analysis, methodology, and algorithms”, Ph. D. Thesis, Texas A&M University, Houston, USA (2010).

11 Roger, L., “Models and algorithms for reliable facility location problems and system reliability optimization”, Ph. D. Thesis, University of Florida, USA (2007).

12 Xiao, W., Dong, H.G., Li, X.Q., Yao, P.J., Luo, X., Roetzel, W., “Synthesis of large scale multi-stream heat exchanger networks based on stream pseudo-temperature”, Chin. J. Chem. Eng., 14 (5), 574-583 (2006).

13 Yao, P.J., Analysis and Synthesis of Process Systems, Dalian University of Technology Press, Dalian, 149-151 (2004). (in Chinese)

14 Wei, G.F., Yao, P.J., Luo, X., Roetzel, W., “Study on multi-stream heat exchanger networks synthesis with paralled genetic/simulated annealing algorithm”, Chin. J. Chem. Eng., 12 (1), 66-77 (2004).

15 Yu, H.M., Yao, P.J., Yuan, Y., “Study of total process energy integration”, Chin. J. Chem. Eng., 7 (2), 182-188 (1999).

16 Wang, K.F., Yao, P.J., Yuan, Y., “A new retrofit approach for heat exchanger networks—Improved genetic algorithm”, Chin. J. Chem. Eng., 5 (4), 347-358 (1997).

Strategy for Synthesis of Flexible Heat Exchanger Networks Embedded with System Reliability Analysis

Strategy for Synthesis of Flexible Heat Exchanger Networks Embedded with System Reliability Analysis

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 0

Recommended Articles

Metrics

Comments