A small-scale seawater reverse-osmosis system with excellent energy efficiency over a wide operating range

被引：84

作者：

Thomson, M ^{[1
]}

Miranda, MS ^{[1
]}

Infield, D ^{[1
]}

机构：

[1] Loughborough Univ Technol, CREST, Loughborough LE11 3TU, Leics, England

来源：

DESALINATION | 2003年 / 153卷 / 1-3期

关键词：

wind; solar; photovoltaic; PV; seawater; reverse osmosis; energy recovery; renewable energy; desalination;

D O I：

10.1016/S0011-9164(02)01141-4

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A small-scale seawater reverse-osmosis system with excellent energy efficiency is presented. The system promises to deliver up to 460 l/h of potable water, from seawater (at 40,000 ppm), while consuming less than 1600 W of electrical power. This represents a specific energy consumption of less than 3.5 kWh/m(3). Moreover, the flow may be controlled in order to reduce the power consumption by a factor of four without any significant loss of efficiency - the specific energy consumption remains near to 3.5 kWh/m(3). The keys to these impressive figures are the energy recovery provided by the Clark pump, from Spectra Watermakers Inc., and the use of a variable water recovery ratio control algorithm, developed by CREST. The significance of the system is that it may be operated from variable intermittent renewable-energy sources, such as wind and solar-photovoltaic (PV), without need of batteries. Results of laboratory testing and extensive modeling are presented.

引用

页码：229 / 236

页数：8