Desalination of water by reverse osmosis using gravitational potential energy and wind energy

被引:24
作者
Fadigas, E. A. F. A. [1 ]
Dias, J. R. [1 ]
机构
[1] Univ Sao Paulo, Dept Elect Automat & Energy Engn, BR-05508900 Sao Paulo, Brazil
关键词
Wind energy; Gravitational potential energy; Reverse osmosis; Water desalination;
D O I
10.1016/j.desal.2007.12.029
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
This paper proposes ail alternative configuration to conventional reverse osmosis (RO) desalination systems by incorporating the use of gravitational potential energy. The proposal suggests a model that can be viewed as the energy station of a RO desalination plant. Conventionally, RO plants use a high-pressure pump, powered by electricity or fossil fuel. The function of the pump is to send a flux of saline water to a group of semi-permeable membrane modules, capable of "filtering" the dissolved salts. In this proposed model, we intend to achieve a flux at the inlet of the membrane modules with a pressure high enough for the desalination process, without using, either electricity or fossil fuels. To do this we divised a hybrid system that uses both gravitational potential energy and wind energy. The technical viability of the alternative was theoretically proven by deductions based on physics and mathematics.
引用
收藏
页码:140 / 146
页数:7
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