Subsea buoyancy and gravity energy storage system for deep-water applications

A preliminary assessment

Conference paper (2022)

Authors

André Reinaldo Novgorodcev Junior Offshore Engineering - CEG
F. Mols Offshore Engineering - CEG , Mechanical Engineering
A. Jarquin Laguna Offshore and Dredging Engineering - Mechanical, Maritime and Materials Engineering
Research Group
Offshore Engineering (CEG) (TU Delft)
Copyright: © 2022 André Reinaldo Novgorodcev Junior, F. Mols, A. Jarquin Laguna
DOI: https://doi.org/10.1115/OMAE2022-78138
Offshore energy Buoyancy energy storage Gravity energy storage
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Published Date

2022

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Hydraulic Engineering

Research Group

Offshore Engineering

Abstract

This article presents a preliminary assessment of a subsea buoyancy and gravity energy storage system (SBGESS). The storage device is designed to power an off-grid subsea water injection system to be installed at the Libra oil field in Brazil at 2000 m below sea level. Two 12MW floating wind turbines provide the energy supply. The system performance is evaluated according to historical wind data from reanalysis models, the water injection pumps power curves, the required daily water flow rate, and the maximum number of shutdowns allowed per year. A control strategy with three different operation modes and one energysave sub-mode was implemented to optimise the size of the proposed energy storage system.

Files

OMAE2022_80422.pdf
(.pdf | 0.763 Mb)