Optimization of a solar-wind- grid powered desalination system in Saudi Arabia

作     者：Ghaithan, Ahmed M. Al-Hanbali, Ahmad Mohammed, Awsan Attia, Ahmed M. Saleh, Haitham Alsawafy, Omar 

作者机构：King Fahd Univ Petr & Minerals Construct Engn & Management Dept Dhahran 31261 Saudi Arabia King Fahd Univ Petr & Minerals Dept Syst Engn Dhahran 31261 Saudi Arabia 

出 版 物：《RENEWABLE ENERGY》 (再生能源)

年 卷 期：2021年第178卷

页      面：295-306页

核心收录：

学科分类：0820[工学-石油与天然气工程] 080703[工学-动力机械及工程] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：King Fahd University of Petroleum and Minerals (KFUPM) 

主　　题：Hybrid power system Solar energy Wind energy RO desalination Unit Mixed-integer linear programming Optimization 

摘      要：The utilization of renewable energy to run desalination plants has enormously expanded in the last two decades. In this study, a grid-connected hybrid solar-wind system is proposed to power a small-scale Reverse Osmosis (RO) desalination unit. In a case study, the system s performance has been analyzed under the weather conditions of the Eastern Province, Saudi Arabia. A numerical model has been developed based on a mixed-integer linear programming (MILP) approach to design and size the proposed system. The developed model is solved on an hourly basis to capture hourly variations of weather conditions with the aim to obtain an efficient design to operate the RO plant and supply freshwater to a small community living in a remote area at minimum cost. The developed model allows finding the optimal number of wind turbines, the number of photovoltaic (PV) modules, and the energy purchased from the national grid. Since the desalination energy consumption depends on the feed water conditions, two energy consumption rates are considered, namely, 2 and 4 kWh/m(3). The results show that brackish water can be purified for the two different energy requirements at a cost varying between 1.72 and 1.84 $/m(3), respectively. (C) 2021 Elsevier Ltd. All rights reserved.