Offshore systems 2020 to 2023
Vahid Aryai, Rouzbeh Abbassi, Nagi Abdussamie,
Fatemeh Salehi, Vikram Garaniya, Mohsen Asadnia, Al-
Amin Baksh, Irene Penesis, Hassan Karampour, Scott
Draper, Allan Magee, Ang Kok Keng, Chris Shearer, Suba
Sivandran, Lim Kian Yew, Denham Cook, Mark
Underwood, Andrew Martini, Kevin Heasman, Jonathan
Abrahams, Chien-Ming Wang.
This document reviews the status, limitations, and future
directions of offshore fishing facilities in Australia.
Laura Castro-Santos, Maite deCastro, Xurxo Costoya,
Almudena Filgueira-Vizoso, Isabel Lamas-Galdo, Americo
Ribeiro, João M. Dias, and Moncho Gómez-Gesteira.
Wind energy resources are subject to changes in climate,
so the use of wind energy density projections in the near
future is essential to determine the viability and profitability
of wind farms at particular locations. Thus, a step forward
in determining the economic assessment of floating
offshore wind farms was taken by considering current
and near-future wind energy resources in assessing the
main parameters that determine the economic viability
(net present value, internal rate of return, and cost of
energy) of wind farms. This study was carried out along
the Atlantic coast from Brest to Cape St. Vincent.
Wen-Ten Kuo, Zheng-Yun Zhuang
This study produced and tested 12 concrete sample types
by varying the water/binder ratio (0.28 and 0.30), the
replacement ratios for fly ash (0%, 10%, and 20%) and
silica fume (0% and 10%), as substitutes for
cement, with ground granulated blast-furnace slag at a
fixed proportion of 30%. The workability
of fresh HPC is discussed with setting time, slump, and V-
funnel flow properties. The hardened
mechanical properties of the samples were tested at 1, 7,
28, 56, and 91 days, and durability tests were
performed at 28, 56, and 91 days.
Daniel Coles, Athanasios Angeloudis, Deborah Greaves,
Gordon Hastie, Matthew Lewis, Lucas Mackie, James
McNaughton, Jon Miles, Simon Neill, Matthew Piggott,
Denise Risch, Beth Scott, Carol Sparling, Tim Stallard,
Philipp Thies, Stuart Walker, David White, Richard Willden,
and Benjamin Williamson.
This review provides a critical, multi-faceted assessment of
the practical contribution of tidal stream energy to the UK
and British Channel Islands' future energy mix. Evidence is
presented that broadly supports the latest national-scale
practical resource estimate of 34 TWh/year, equivalent to
11% of the UK's current annual electricity demand. The
size of the practical resource depends in part on the
economic competitiveness of projects.
Giovanni Battista Rossi, Andrea Cannata, Antonio Iengo,
Maurizio Migliaccio, Gabriele Nardone, Vincenzo Piscopo,
and Enrico Zambianchi.
Sea waves constitute a natural phenomenon with a great
impact on human activities, and their monitoring is
essential for meteorology, coastal safety, navigation, and
renewable energy from the sea. Therefore, the main
measurement techniques for their monitoring are here
reviewed, including buoys, satellite observation, coastal
radars, shipboard observation, and microseism analysis.
The documents are classified chronologically from 2020 to 2023.
Click on their descriptions to open and download them.
Authors: Y. Zhang, Y.D. Zhou, H. Wu
With the increasing significance of marine safety issues,
the studies on the underwater blast-resistant performance
of wharves, e.g., reinforced concrete (RC) caissons, has
become an urgent demand. At present, the influence of
water level on caisson subjected to underwater explosions
was studied experimentally and numerically, e.g.,
underwater explosion loading characteristics and dynamic
behaviors of caisson. Firstly, four shots of underwater
explosion test were carried out both in free field and on a
partially submerged caisson specimen, and the
overpressure and deflection-time histories, as well as the
structural damage pattern were recorded.
Authors: Anggara Trisna Nugraha, and Dadang
The need for electrical energy in Indonesia continues to
increase every year. In line with the increase in the
electrification ratio to 100% in 2050. Additionally, electrical
energy needs can reach seven times, namely 1,611 TWh.
This paper aims to offer the concept of hybrid gadget
configuration, modeling, renewable power sources,
standards for optimization and manipulation strategies of
hybrid gadgets, and software programs used for the main
measure. For this reason, innovation is needed in terms of
fulfilling electrical energy by utilizing the potential of
renewable energy, one of which is water energy, which is
45,379 MW from a total resource of 75,091 MW
Publisher: Jun Yu, Hai-tao Li, Zhen-xin Sheng, et al.
In this study, the cavitation effect induced by two charges
in underwater explosions near free surfaces is numerical
researched by two dimensional compressible multi-phase
fluids based on a four-equation system with a phase
transition model. The occurrence of the generation,
development, and collapse of cavitation in two-charge
underwater explosions near free surfaces can be
captured directly. The detailed density,pressure, and
vapor volume fraction contours during the interaction
process are obtained and can better reveal the
characteristic underlying the cavitation, free surface, and