Abstract Coastal erosion is occurring at a faster rate than in the past. The adverse impacts are not negligible environmental, economic, and socio-cultural levels. Hence, coastal protection currently seen as an emerging need to counteract their many negative effects on worldwide ecosystems. In this regard, natural systems organisms represent complex system of solutions that can efficiently create and/or inspire development natural, sustainable, cutting-edge barriers. ecosystems, such coral...

In a time span of over 3,000 years, the function harbor breakwaters has remained same (i.e., energy dissipation), with differences depending on general breakwater configurations: rubble mound or caisson breakwaters. The recent demands sea level rise and intensification extreme events related to climate change issues are requiring new replacement schemes and, in most cases, will not be easy achieve simple modification seawall height. Moreover, international community recognizes importance...

Renewable energy sectors have been rapidly growing over the last three decades due to environmental concerns regarding fossil fuels and increasing demand of by human. Among those, offshore wind farms are one most attractive promising technologies for clean production strong steady winds, less turbine fatigue, visual space limitations compared onshore farms. Rapid development farms, which is expected reach 70% 2030, can effect on marine ecosystems organisms. Hitherto, different studies...

The present paper is focused on enhancing the production of biohydrogen (bioH

Brazil has one of the largest electricity markets in South America, which needs to add 6000 MW capacity every year order satisfy growing demand from an increasing and more prosperous population. Apart biomass, no other renewable energy sources, besides hydroelectricity, play a relevant role mix. The potential for wind wave is very large. Brazil's Santa Catarina state government starting clean program state, expected bring than 1 GW capacity. Assessment resources needed along coastline. This...

In a perspective of impoverishment the fossil fuel and preservation natural environment, sea wave energy is being increasingly regarded as alternative promising resource. A key aspect to take in consideration for deployment Wave Energy Converters local characterization climate. this contribute, methodology calculation validation site-specific Test Reference Year (TRY), from multiyear dataset such ERA-Interim ERA-5, be used conversion studies proposed. Comparison two datasets with observed...

The main purpose of this paper is the investigation feasibility a novel hybrid module specifically designed for Mediterranean Sea. This intended to work as an offshore floating breakwater in severe sea states, and alternatively wave energy converter more frequent mild depending on its level submergence. An experimental campaign 1:10 has been carried out tank University Campania. dynamic response device, well hydraulic performances, was investigated under various conditions. results highlight...

This paper constructs an optimal configuration assessment, in terms of the financial returns, Overtopping BReakwater for wave Energy Conversion (OBREC). technology represents a hybrid energy harvester, totally embedded traditional rubble mound breakwaters. Nine case studies along southern coast Western Australia have been analysed. The technique provides tips on how to estimate quality investments, benchmarking with different turbine strategy layouts and overlapping costs Analyses offshore...

The Overtopping BReakwaterfor Energy Conversion (OBREC) is an overtopping wave energy converter, totally embedded in traditional rubble mound breakwaters. device consists of a reinforced concrete front reservoir designed with the aim capturing order to produce electricity. extracted through low head turbines, using difference between water levels and sea level. This paper analyzes OBREC hydraulic performances based on physical 2D model tests carried out at Aalborg University (DK). analysis...

The Maldives are situated in the remote equatorial Indian Ocean, covering 900 km from north to south. 26 coral atolls forming archipelago composed of sand and with a maximum height about 2.30 m above mean sea level. Periodic flooding storm surges frequent freshwater scarcity perceived by population economic operators as major environmental stresses. Moreover, strong dependence on imported fossil fuels increases, even more, concerns. Diesel, fact, still represents main source power...

The opportunity to co-locate wind and wave energy exploitation is analysed in the Italian seas grounding on rationale that benefits are greater when un-correlated resources combined. study shows that, although waves winds generally strongly correlated, some conditions their correlation lower combined harvesting more interesting. As spatial conflicts of sea use demand for maritime space increasingly growing, development marine renewable sector needs be evaluated perspective complex framework...

Coastal regions are crucial for human settlements and economic development. However, their distinctive environmental characteristics, particularly in deltas, bays, gulfs, render them highly vulnerable to threats such as erosion phenomena pollution. The effective management of these areas depends on the accurate predictions wave dynamics interactions with shoreline seabed. Reliable forecasts require numerical propagation models be initialized precise data detailed bathymetric representations,...

Three-dimensional survey is a key technology for documenting, monitoring, and analysing artifacts, buildings, areas. Photogrammetry from drones makes it possible to monitor impervious areas and, thanks their manoeuvrability reduced cost compared airplane flights, acquire data over time with regular missions, allowing constant monitoring. This paper presents project pier in port area of the city Naples that has undergone changes shape years due heavy storm surges. The aims create an accurate...

Vicinanza, D., Nørgaard, J.H., Contestabile, P. and Andersen, T.L., 2013. Wave loadings acting on Overtopping BReakwater for Energy Conversion.Any kind of Converter (WEC) requires information reliability technology time required the return investment (reasonable payback). The structural response is one most important parameters to take in account a consistent assessment innovative devices. This paper presents results wave loading an hybrid WEC named Conversion (OBREC). new design based...

This paper presents a Coastal Vulnerability Assessment (CVA) of microtidal beach located on the Ionian Sea in Calabria region (southern Italy) order to examine influence different run-up equations CVA score and propose mitigation measures for most vulnerable parts beach. The coastal area has been severely eroded by extreme wave storms, which have also damaged important archaeological structures nearby cliff. A typical 1 year return period (Tr) storm, associated with recent criticalities, was...

New large-scale laboratory data are presented on a physical model of spar buoy wind turbine with angular motion control surfaces implemented (pitch control). The peculiarity this type rotating blade represents an essential aspect when studying floating offshore structures. Experiments were designed specifically to compare different operational environmental conditions in terms wave steepness and speed. Results discussed here derived from analysis only part the whole dataset. Consistent...