A shortcut model for energy efficient water network synthesis

• Shortcut model is formulated for energy efficient water network synthesis.
• Energy consumption is minimized by minimizing temperature fluctuations.
• The model is formulated as MILP to achieve global optimum.
• Example shows the model generates water network with minimum energy consumption.

This paper presents a shortcut model for energy efficient water network synthesis with single contaminant. The proposed model is based on the idea of reducing repeated heating and cooling proposed by Feng et al. [9]. To avoid sub-optimum that can be generated from Feng's model, the proposed model only minimizes the number of temperature ‘valleys’ instead of the total number of ‘peaks and valleys’ of the water network. With the new formulation, the proposed model not only guarantees global optimum but also becomes much easier to be solved.

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