Effect of thermodynamic limitations on PV initial cost estimations for solar-powered RO desalination

被引:6
作者
El-Shaarawi, Maged A. I. [1 ]
Al Awjan, Hussain [1 ]
Al Ramadhan, Dawood [1 ]
Hussain, Mustafa [1 ]
机构
[1] King Fahd Univ Petr & Minerals, Dept Mech Engn, Dhahran 31261, Saudi Arabia
关键词
PV-RO desalination; Minimum work; Minimum PV arrays initial cost; REVERSE-OSMOSIS; ENERGY-CONSUMPTION; RENEWABLE ENERGY; WATER; PLANT; RECOVERY; GENERATION; DESIGN;
D O I
10.1016/j.desal.2011.03.021
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The minimum initial cost of photovoltaic (PV) arrays in PV-powered reverse osmosis (PV-RO) desalination systems is estimated by thermo-hydro calculations that are based on second law of thermodynamics limitations. This cost is a function of location, which includes sea water salinity and climate data. The reversible work needed per kg of potable water produced has been computed. The effects of feed sea/brackish water salinity and the exhaust brine salinity (including the two extreme cases of zero and maximum recovery ratios) on the performance have been investigated. Power needed to drive a PV-RO desalination system of a given output is calculated. Osmotic pressure needed for different locations and the minimum PV area are calculated: the corresponding initial cost is estimated. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:28 / 37
页数:10
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