Title

Experimental analysis of buoyancy battery energy storage system

Document Type

Conference Proceeding

Publication Date

1-1-2016

Publication Title

IET Renewable Power Generation

Volume

10

Issue

10

First Page

1523

Last Page

1528

Abstract

Buoyancy battery underwater energy storage is an emerging area of research relating to the storage of energy generated by renewable resources such as offshore wind and solar. This study presents an experimental analysis of a basic buoyancy system. Tests were performed on a container with minimal ambient fluid volume, as well as in a large offshore testing tank. Development and integration of fundamental system components is discussed in terms of experimental apparatus and larger application. Discharge cycling was performed with variables relating to discharge voltage, power, and discharge velocity obtained. Energy losses to kinetic energy and hydrodynamic drag are estimated for completed trails. The effect of pulley friction is evaluated for no-load discharge testing. Conclusions are drawn as to the observed operation of the system as designed, primary areas for performance improvements, and next steps for system development.

DOI

10.1049/iet-rpg.2016.0033

ISSN

17521416

E-ISSN

17521424

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