Model and Design of Cogeneration System for Different Demands of Desalination Water, Heat and Power Production

doi:10.1016/S1004-9541(14)60036-7

Chin.J.Chem.Eng. ›› 2014, Vol. 22 ›› Issue (3): 330-338.DOI: 10.1016/S1004-9541(14)60036-7

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Model and Design of Cogeneration System for Different Demands of Desalination Water, Heat and Power Production

WU Xianli, HU Yangdong, WU Lianying, LI Hong

College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China

Received:2012-10-29 Revised:2013-04-28 Online:2014-03-05 Published:2014-03-28
Contact: HU Yangdong
Supported by:
Supported by the National Natural Science Foundation of China (21076202).

Model and Design of Cogeneration System for Different Demands of Desalination Water, Heat and Power Production

吴现力, 胡仰栋, 伍联营, 李红

College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China

通讯作者: HU Yangdong
基金资助:
Supported by the National Natural Science Foundation of China (21076202).

Abstract

Abstract: In order to improve the energy efficiency, reduce the CO₂ emission and decrease the cost, a cogeneration system for desalination water, heat and power production was studied in this paper. The superstructure of the cogeneration system consisted of a coal-based thermal power plant (TPP), a multi-stage flash desalination (MSF) module and reverse osmosis desalination (RO) module. For different demands of water, heat and power production, the corresponding optimal production structure was different. After reasonable simplification, the process model of each unit was built. The economical model, including the unit investment, and operation and maintenance cost, was presented. By solving this non-linear programming (NLP) model, whose objective is to minimize the annual cost, an optimal cogeneration system can be obtained. Compared to separate production systems, the optimal system can reduce 16.1%-21.7% of the total annual cost, showing this design method was effective.

Key words: cogeneration system, thermal power plant, multi-stage flash desalination, reverse osmosis desalination, non-linear programming, optimal design

摘要： In order to improve the energy efficiency, reduce the CO₂ emission and decrease the cost, a cogeneration system for desalination water, heat and power production was studied in this paper. The superstructure of the cogeneration system consisted of a coal-based thermal power plant (TPP), a multi-stage flash desalination (MSF) module and reverse osmosis desalination (RO) module. For different demands of water, heat and power production, the corresponding optimal production structure was different. After reasonable simplification, the process model of each unit was built. The economical model, including the unit investment, and operation and maintenance cost, was presented. By solving this non-linear programming (NLP) model, whose objective is to minimize the annual cost, an optimal cogeneration system can be obtained. Compared to separate production systems, the optimal system can reduce 16.1%-21.7% of the total annual cost, showing this design method was effective.

关键词: cogeneration system, thermal power plant, multi-stage flash desalination, reverse osmosis desalination, non-linear programming, optimal design

WU Xianli, HU Yangdong, WU Lianying, LI Hong. Model and Design of Cogeneration System for Different Demands of Desalination Water, Heat and Power Production[J]. Chin.J.Chem.Eng., 2014, 22(3): 330-338.

吴现力, 胡仰栋, 伍联营, 李红. Model and Design of Cogeneration System for Different Demands of Desalination Water, Heat and Power Production[J]. Chinese Journal of Chemical Engineering, 2014, 22(3): 330-338.

References

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Model and Design of Cogeneration System for Different Demands of Desalination Water, Heat and Power Production

Model and Design of Cogeneration System for Different Demands of Desalination Water, Heat and Power Production

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