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Development of utility scale buoyant energy storage technology

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Item Summary

Title:Development of utility scale buoyant energy storage technology
Authors:Thornbrue, Tyler Benjamin
Keywords:buoyant energy storage technology
energy storage
Date Issued:May 2012
Publisher:[Honolulu] : [University of Hawaii at Manoa], [May 2012]
Abstract:Power intermittency is a growing concern as variable renewable power producers increase their penetration on utility grids. With a majority of US states adopting renewable portfolio standards, mitigation strategies such as energy storage are receiving renewed attention.
This thesis presents the developmental progress of a novel method of energy storage referred to as buoyant energy storage technology (BEST). Various concepts are presented, and benefits highlighted before demonstrating a basic system's performance through dynamic modeling. A control methodology is then designed and implemented to improve the performance and functionality of the same model. Further expansion to a dual buoy model and control methodology follows to enhance the system through a regenerative braking power transfer technique. A proof of concept is then demonstrated and options for scaled up testing discussed. Finally, a cost comparison analysis is presented that juxtaposes BEST with pumped hydroelectric and battery energy storage technologies.
Description:M.S. University of Hawaii at Manoa 2012.
Includes bibliographical references.
Appears in Collections: M.S. - Mechanical Engineering

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