How much energy can be extracted from moving water with a free surface: A question of importance in the field of tidal current energy?

被引：30

作者：

Bryden, Ian G. ^{[1
]}

Couch, Scott J. ^{[1
]}

机构：

[1] Univ Edinburgh, Inst Energy Syst, Sch Engn & Elect, Edinburgh, Midlothian, Scotland

来源：

RENEWABLE ENERGY | 2007年 / 32卷 / 11期

关键词：

channel; energy extraction limit;

D O I：

10.1016/j.renene.2006.11.006

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This short technical note addresses the extraction of energy from a simplified channel in which flow is driven by a head difference between inlet and outlet. This model is used to indicate that there is a maximum rate at which energy can be artificially extracted from the flowing water and that this rate is related to the kinetic energy flux in the unexploited channel but with a multiplying factor which is related to the channel physical properties. Counter intuitively, this multiplier can exceed unity in some circumstances. The simple channel has some similarities to tidal channels but is here presented as an abstraction to allow appreciation of the relationships between energy extraction, flow speed and channel properties. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1961 / 1966

页数：6

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