Electrical Design for Ocean Wave and Tidal Energy Systems

Techniques are described which have been employed to develop detailed, quantitive estimates of the available ocean wave energy flux. A summary of results for a region of particular interest to potential U.S. developers of wave energy systems — the U.S. Northwest Pacific Coast — is also presented. Comparisons with results of other studies are made. In addition, a method for predicting the amount of mechanical energy captured by a conversion device, based on a frequency domain technique, is presented. Results are predicted for an articulated, contour following raft deployed in deep, open water west of the mouth of the Columbia River.

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An Approach to Mapping the Erosion–Corrosion of Stainless Steel: Applications to Tidal Energy Systems

Tribo-Corrosion: Research, Testing, and Applications ◽

10.1520/stp156320120118 ◽

2013 ◽

pp. 19-46 ◽

Cited By ~ 3

Author(s):

J. Crawley ◽

M. Miller ◽

M. M. Stack

Keyword(s):

Stainless Steel ◽

Energy Systems ◽

Tidal Energy ◽

Erosion Corrosion

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Life Cycle Assessment on Wave and Tidal Energy Systems: A Review of Current Methodological Practice

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph17051604 ◽

2020 ◽

Vol 17 (5) ◽

pp. 1604 ◽

Cited By ~ 1

Author(s):

Xizhuo Zhang ◽

Longfei Zhang ◽

Yujun Yuan ◽

Qiang Zhai

Keyword(s):

Life Cycle Assessment ◽

Life Cycle ◽

Energy Systems ◽

Tidal Energy ◽

Electricity Production ◽

Current Status ◽

Future Research ◽

Low Carbon ◽

Iso 14040 ◽

Methodological Practice

Recent decades have witnessed wave and tidal energy technology receiving considerable attention because of their low carbon emissions during electricity production. However, indirect emissions from their entire life cycle should not be ignored. Therefore, life cycle assessment (LCA) has been widely applied as a useful approach to systematically evaluate the environmental performance of wave and tidal energy technologies. This study reviews recent LCA studies on wave and tidal energy systems for stakeholders to understand current status of methodological practice and associated inherent limitations and reveal future research needs for application of LCA on wave and tidal technologies. The conformance of the selected LCAs to ISO 14040 (2006) and 14044 (2006) are critically analyzed in strict accordance with the ISO stepwise methodologies, namely, goal and scope definition, life cycle inventory (LCI) analysis, as well as life cycle impact assessment (LCIA). Our systematically screening of these studies indicates that few of the selected studies are of strict conformance with ISO 14040 and 14044 standards, which makes the results unreliable and thus further reduces the confidence of interested stakeholders. Further, our review indicates that current LCA practice on wave and tidal energies is lacking consideration of temporal variations, which should be addressed in future research, as it causes inaccuracy and uncertainties.

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A Comprehensive Review on Available/Existing Renewable Energy Systems in Malaysia and Comparison of Their Capability of Electricity Generation in Malaysia

10.5772/intechopen.96586 ◽

2022 ◽

Author(s):

Hadi Nabipour Afrouzi ◽

Yuhani Pamodha Wimalaratna ◽

Jubaer Ahmed ◽

Kamyar Mehranzamir ◽

San Chuin Liew ◽

...

Keyword(s):

Power Generation ◽

Renewable Energy ◽

Electricity Generation ◽

Renewable Energy Sources ◽

Geographical Location ◽

Energy Systems ◽

Energy Generation ◽

Tidal Energy ◽

Renewable Energy Systems ◽

The Moment

Malaysia is one of the fastest emerging and developing countries in the world. To drive the economical workhorse, large amounts of power is required. The power demand has risen to 156,003 GWh per year in the year 2016, almost 30,000 GWh more than 5 years prior. Fossil fuels such as natural gas, coal, oil, and diesel have been the driving force powering Malaysia’s grids. However, these resources will not last forever, and they do harm to our environment. To counter this, renewable energy (RE) projects have been constructed all around Malaysia. This paper discusses on available and existing renewable energy systems (single/hybrid) in Malaysia and provides a comparison of their electricity generation capabilities. The renewable energy sources that are covered in this paper include Solar, Hydropower, Biomass, Tidal and Geothermal. At the moment, hydropower is the largest renewable energy producer, contributing to almost 15% of the country’s total energy generation. A lot of resources have been channeled towards the initiative of hydropower and it has definitely borne much fruit. This is followed by Solar Energy. Even though it is not as successful as hydropower, there is still a lot of avenues for it to grow in a tropical country like this. Malaysia is still relatively new in terms of power generation using biomass sources. There has been a gradual increase in the power generation using biofuels through the years and its future does look bright. Energy generation from wind, tidal, and geothermal sources has been rather challenging. Because of Malaysia’s geographical location, it experiences slow winds on average throughout the year. This has led to insufficient output for its financial input. Besides that, Malaysia also has relatively low tide, if compared to other Asian countries such as Indonesia and the Philippines. This contributed to the failure of tidal energy in Malaysia, but there have been signs of locations that can be suitable for this energy generation. Besides that, the country’s first geothermal power plant project failed due to a lack of preparation and discipline during the project’s execution. There is a high initial cost for geothermal projects, and the chances of failure are high if the necessary precautions are not followed. This could be one of the reasons why this branch of renewable energy has not been explored deeply.

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