Document Type : Research paper


1 Faculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, Iran

2 Department of Mechanical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran


The fossil fuels consumption is rapidly growing due to increased water and electricity demands. An interconnected water-energy nexus is generally composed of thermal power plants, combined potable water and power (CWP) generation units, and desalination only processes. Hence, participation of hydro power plants in electricity generation facilities not only reduces the total fuel consumption of the thermal generators and CWP units, but also mitigates the greenhouse gas emissions. In addition, CWP producers reduces the fossil fuels consumption of the conventional thermal power plants and desalination only units, especially when the water treatment and the power generation capacities of the desalination only processes and the conventional thermal units are insufficient for satisfying on-peak potable water and electricity demands. Hence, the main objective of the current paper is to schedule the water-power hub networks in the presence of the hydro units. The generalized algebraic mathematical modeling system is used to model the proposed method as the mixed-integer non-linear program. The on/off status of the units, the value of the power generation of the thermal/hydro/CWP units, the volume of the water produced by the CWP/desalination units are selected as the decision variables of the optimization problem. The sum of the fuel cost of mentioned units is minimized as the single objective function. The optimization constraints consist of the ramp up and down rates of thermal units, water and electricity generation capacities, balance constraints, relationship between the water head, spilled and released water of the reservoirs with output power of hydro power plants.


Main Subjects

[1]    X. Zhang and V. V. Vesselinov, "Integrated modeling approach for optimal management of water, energy and food security nexus," Adv. Water Resour, vol. 101, pp. 1-10, 2017.
[2]    J.-L. Fan, L.-S. Kong, H. Wang, and X. Zhang, "A water-energy nexus review from the perspective of urban metabolism," Ecol. Modell., vol. 392, pp. 128-136, 2019.
[3]    F. Jabari, B. Mohammadi-Ivatloo, and M. Rasouli, "Optimal planning of a micro-combined cooling, heating and power system using air-source heat pumps for residential buildings," Energy Harvesting Energy Effic.: Springer, 2017, pp. 423-455.
[4]    F. Jabari, S. Nojavan, and B. M. Ivatloo, "Designing and optimizing a novel advanced adiabatic compressed air energy storage and air source heat pump based μ-Combined Cooling, heating and power system," Energy, vol. 116, pp. 64-77, 2016.
[5]    G. Krajačić, N. Duić, M. Vujanović, Ş. Kılkış, M. A. Rosen, and M. d. A. Al-Nimr, "Sustainable development of energy, water and environment systems for future energy technologies and concepts," Energy Convers. Manage.,vol. 125, no. Supplement C, pp. 1-14, 2016.
[6]    T. Amjath-Babu et al., "Integrated modelling of the impacts of hydropower projects on the water-food-energy nexus in a transboundary Himalayan river basin," Appl. Energy, vol. 239, pp. 494-503, 2019.
[7]    J. Yang and B. Chen, "Energy–water nexus of wind power generation systems," Appl. Energy, vol. 169, no. Supplement C, pp. 1-13, 2016.
[8]    A. Siddiqi, A. Kajenthira, and L. D. Anadón, "Bridging decision networks for integrated water and energy planning," Energy Strategy Rev.,vol. 2, no. 1, pp. 46-58, 2013.
[9]    C. Duan and B. Chen, "Energy–water nexus of international energy trade of China," Appl. Energy, vol. 194, pp. 725-734, 2017.
[10]   F. Ackerman and J. Fisher, "Is there a water–energy nexus in electricity generation? Long-term scenarios for the western United States," Energy Policy, vol. 59, pp. 235-241, 2013.
[11]   B. Tarroja, A. AghaKouchak, and S. Samuelsen, "Quantifying climate change impacts on hydropower generation and implications on electric grid greenhouse gas emissions and operation," Energy, vol. 111, pp. 295-305, 2016.
[12]   B. Gjorgiev and G. Sansavini, "Water-energy nexus: Impact on electrical energy conversion and mitigation by smart water resources management," Energy Convers. Manage., vol. 148, pp. 1114-1126, 2017.
[13]   H. Wa'el A, F. A. Memon, and D. A. Savic, "A risk-based assessment of the household water-energy-food nexus under the impact of seasonal variability," J. Cleaner Prod., vol. 171, pp. 1275-1289, 2018.
[14]   W. He, W. Zhu, D. Han, L. Huang, Y. Wu, and X. Zhang, "Performance simulation of a power-water combined plant driven by low grade waste heat," Energy Convers. Manage., vol. 145, pp. 107-116, 2017.
[15]   W. F. He, D. Han, L. N. Xu, C. Yue, and W. H. Pu, "Performance investigation of a novel water–power cogeneration plant (WPCP) based on humidification dehumidification (HDH) method," Energy Convers. Manage.,vol. 110, no. Supplement C, pp. 184-191, 2016.
[16]   A. Soroudi, "Power System Optimization Modeling in GAMS," ed: Springer, 2017.