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Received August 11, 2013
Accepted November 8, 2013
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Simultaneous optimization of water and heat exchange networks
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
wjingtao928@tju.edu.cn
Korean Journal of Chemical Engineering, April 2014, 31(4), 558-567(10), 10.1007/s11814-013-0236-z
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Abstract
This paper focuses on the simultaneous optimization of the heat-integrated water allocation networks. A mathematic model is established to illustrate the modified state-space representation of this problem. An easy logical method is employed to help identify the streams of hot or cold ones. In this model, the water exchange networks (WEN), heat exchange networks (HEN), and the interactions between the WEN and HEN combine together as one unity. Thus, the whole network can be solved at one time, which enhances the possibility to get a global optimal result. Examples from the literature and a PVC plant are analyzed to illustrate the accuracy and applicability of this method.
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References
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