Comprehensive wave climate analysis of the Uruguayan coast

2007 ◽

Cited By ~ 2

Author(s):

Eliab R. Beserra ◽

Andre´ L. T. Mendes ◽

Segen F. Estefen ◽

Carlos E. Parente

Keyword(s):

Energy Conversion ◽

Wave Energy ◽

Wind Waves ◽

Energy Resource ◽

Wave Climate ◽

Northern Coast ◽

Wave Energy Conversion ◽

Annual Fluctuation ◽

Significant Wave ◽

Climate Analysis

A variety of ocean wave energy conversion devices have been proposed worldwide considering different technology and energy extraction methods. In order to support full-scale prototype design and performance assessments of a conversion scheme to be deployed on the northern coast of Brazil, a long-term wave climate analysis is under development. A 5-year pitch-roll buoy data series has been investigated through an adaptive technique to enhance spatial resolution and allow for accurate wave directionality evaluation. Device design most influential variables such as extreme significant wave height, peak period and directionality were considered. Temporal variability in wave energy levels was particularly investigated for energy resource assessment. The major findings of this work include the narrow directional amplitude of the incident wave and higher significant wave heights of locally generated waves. The estimated energy resource levels agreed well with literature, also showing little annual fluctuation. The wave climate demonstrated to be in full agreement with the large-scale Equatorial Atlantic atmospheric variability, dominated by either local wind waves or by distant storm swells.

Download Full-text

A 39-year high resolution wave hindcast for the Chinese coast: Model validation and wave climate analysis

Ocean Engineering ◽

10.1016/j.oceaneng.2019.04.084 ◽

2019 ◽

Vol 183 ◽

pp. 224-235 ◽

Cited By ~ 9

Author(s):

Jian Shi ◽

Jinhai Zheng ◽

Chi Zhang ◽

Antoine Joly ◽

Wei Zhang ◽

...

Keyword(s):

High Resolution ◽

Model Validation ◽

Wave Climate ◽

Wave Hindcast ◽

Chinese Coast ◽

Climate Analysis

Download Full-text

Wave climate analysis in the ice-free waters of Kara Sea

Regional Studies in Marine Science ◽

10.1016/j.rsma.2019.100719 ◽

2019 ◽

Vol 30 ◽

pp. 100719 ◽

Cited By ~ 1

Author(s):

Chenglin Duan ◽

Sheng Dong ◽

Zhifeng Wang

Keyword(s):

Wave Climate ◽

Kara Sea ◽

Climate Analysis

Download Full-text

Wave Energy Hyperbaric Converter: Small Scale Models, Prototype and Control Strategies

Volume 7: Ocean Space Utilization; Ocean Renewable Energy ◽

10.1115/omae2012-84251 ◽

2012 ◽

Author(s):

Segen F. Estefen ◽

Paula B. Garcia-Rosa ◽

Eliab Ricarte ◽

Paulo Roberto da Costa ◽

Marcelo M. Pinheiro ◽

...

Keyword(s):

Control Strategies ◽

Applied Pressure ◽

Ocean Waves ◽

Wave Climate ◽

Small Scale ◽

Scale Models ◽

Pressure Water ◽

Climate Analysis ◽

Brazilian Northeast ◽

And Control

A device for electricity generation from ocean waves has been developed for installation on the Brazilian northeast coast. It is based on pumping modules and a two-stage accumulator linked to a hyperbaric chamber in order to provide a prescribed high pressure water flow, which operates a turbine coupled with an electrical generator. In the period between 2001 and 2007, wave tank testing of small-scale models have been carried out. A prototype with two pumping modules is presently installed in the Port of Pecém. This paper describes an overview of the device development since the first tests to the installation of the prototype. Wave climate analysis, design analysis and optimization studies have been developed and are briefly revised in this study. Furthermore, control strategies are proposed to optimize the electrical output considering the proper combination of both pressure and flow rate as a function of the predominant wave climate, when the applied pressure is constant and the generator is a synchronous machine.

Download Full-text

An Efficient Tool for Wave Climate Analysis in European Coastal Waters

Marine Ecology ◽

10.1111/j.1439-0485.2002.tb00034.x ◽

2002 ◽

Vol 23 (s1) ◽

pp. 361-369 ◽

Cited By ~ 1

Author(s):

Mauro Sclavo ◽

Luigi Cavaleri ◽

Stephen F. Barstow ◽

Gerassimos A. Athanassoulis

Keyword(s):

Coastal Waters ◽

Wave Climate ◽

Efficient Tool ◽

Climate Analysis

Download Full-text

WAVE CLIMATE ANALYSIS FOR ENGINEERING PURPOSE

Coastal Engineering Proceedings ◽

10.9753/icce.v15.2 ◽

1976 ◽

Vol 1 (15) ◽

pp. 2 ◽

Cited By ~ 1

Author(s):

Hans H. Dette ◽

Alfred Fuhrboter

Keyword(s):

Wave Climate ◽

Incoming Wave ◽

Offshore Area ◽

The North ◽

Wave Measurements ◽

Wind Velocities ◽

Wave Heights ◽

The North Sea ◽

One Year ◽

Climate Analysis

The North Sea (Fig. 1) is known as a random sea with depths in the southern part between 40 m and 100 m so that in contrary to the Atlantic and Pacific coastlines deep sea wave conditions do not exist. After four years of comprehensive wave measurements in the offshore area of the Island of Sylt near the Danish border a general analysis of the wave climate in that region was possible. In this paper results and suggestions will be presented under the aspect of replacing qualitative judgements by quantitative statements which are derived from the knowledge of the adjacent wave climate. Because the wave action varies from year to year a general time unit is not advisable for the evaluation of shore processes; therefore the time scale should be substituted by the integral of incoming wave energy occurring after a certain time. The investigated method of expressing the total energy of one season or one year in the electrical unit Kilowatthour (kWh) per meter (m) width of shoreline could prove in future as a feasible way of classifying the irregular seasonal and yearly wave intensities. It is further shown that wave measurements over a period of several years can be sufficient for the investigation of correlations between the wind velocities occurring from all directions and the resulting wave heights. In case of satisfying correlation factors it will then be possible to carry out feedback operations for periods from which only records of wind velocities and directions are available and even to hindcast the wave heights for certain not yet measured wind velocities.

Download Full-text