marine turbine Articles

  • Is marine energy about to go mainstream?

    Why the costs of wave and tidal power could soon plummet - viewpoint from Dr Stephen Wyatt, Head of Technology Acceleration, Carbon Trust As the marine industry gathers in London for its annual get together one thing is clear; the sector is growing up fast.  So fast that it looks like it will soon be defying its critics and getting its feet seriously wet after many years of ...


    By Carbon Trust

  • Simulation-based evaluation of tidal current power output characteristics

    Tidal current is considered to be one of the promising alternative green energy resources. This paper introduces a simulation based methodology to evaluate tidal current power output characteristics, including capacity factor, and power production variability patterns. Power variability analysis is crucial to grid integration systems design. The proposed methodology is applied to the well known ...


    By Inderscience Publishers

  • A Review of Cavitation-Erosion Resistant Weld Surfacing Alloys for Hydroturbines

    AbstractAn improved weld surfacing alloy has been developed and tested to resist cavitation-erosion in hydroturbines. Typical wear characteristics experienced in laboratory testing has been correlated to actual service conditions. A metallurgical evaluation shows that a high strain, work hardening austenitic stainless steel produces superior resistance to cavitational erosion. Several industrial ...


    By Castolin Eutectic

  • Key issues of tidal energy and factors affecting it globally with civil structures

    This paper focus on some of the key challenges to be met in the development of marine energy, it present prototype form to being a widely deployed contributor to future energy supply of the world. Large-scale wave and tidal current prototypes have been demonstrated around the world, but marine renewable energy technology is still 10-15 years behind that of wind energy. However, having started ...


    By Inderscience Publishers

  • DOE provides more renewables funding

    The U.S. Department of Energy (DOE) announced on September 16 that it will provide nearly $100 million for renewable energy research, including $16.5 million for biomass energy, $30 million for state energy efficiency projects, and $9.6 million for “transformational” energy research, such as airborne wind turbines and solar photovoltaic (PV) systems with non-mechanical ...

  • Geothermal plant protects pumps - case study

    This large geothermal company needed reliable equipment in the deserts of southeastern California. Geothermal plants turn water into to steam to drive turbines. Protecting the pumps is paramount. Keeping the inflowing water clean of debris and marine life, an IWS traveling water screen provides reliable removal with minimal labor. Debris is lifted from the water, and dropped directly into a ...


    By International Water Screens

  • Case Study - 6MW Non-Condensing Power Plant

    Lihir Island, Papua New Guinea – 2003 First Geothermal Power Station in PNG: Press Release, April 16, 2003 Lihir Gold Limited “Gold company Lihir Gold Limited is turning its vast geothermal resource into an opportunity. In April, the company started commissioning a 6MW geothermal power station, the first in Papua New Guinea to use natural geothermal ...

  • Oceans of Energy

    Technologies that harness the energy of moving water or temperature differentials in the oceans promise to deliver abundant carbon-free electricity. Long before humans got hooked on fossil fuels, we learned how to harness the power of water to do work. Rivers ran mills that ground flour, sawed logs or spun looms that transformed fibers into textiles. Later generations realized that moving water ...


    By Ensia

  • Research and development in ocean energy technologies

    The volatile fuel prices for electricity generation, elevated concerns about global warming and energy security has prompted countries to look for alternative energy sources. One of the alternative energy sources is ocean energy. Currently, there is few ocean energy technologies that are commercially available to harness electrical energy from ocean despite the fact that ocean covers more than ...


    By Inderscience Publishers

  • A novel FACTS dynamic stabilisation scheme for stand-alone tidal energy conversion systems

    Renewable abundant ocean kinetic energy has become increasingly popular as a consequence of strong ecological viable concerns and economical energy solutions in remote island communities. However, the integration of dispersed renewable tidal energy will pose a greater challenge to the power quality of distribution networks in remote areas due to fluctuation of the tidal stream velocity. The paper ...


    By Inderscience Publishers

  • Gamesa, Northrop Grumman to collaborate in offshore wind

    Spanish wind technology giant Gamesa and U.S. defense contractor Northrop Grumman (Los Angeles, CA) have signed an agreement under which the two companies will collaborate in the development of technologies for offshore wind facilities. Under the terms of the agreement, Northrop Grumman Shipbuilding will apply its experience in heavy load logistics, systems performance, and reliability ...

  • Seawater desalination using reusable type small PWR

    Demand for seawater desalination is increasing, especially in regions such as the Middle East and North Africa, where populations are growing at a high annual rate. If such demand is met by fossil fuel energy, the influence on the environment, such as global warming, cannot be disregarded. Since these regions are behind in their preparedness of social capital infrastructure, such as power ...


    By Inderscience Publishers

  • Auto mechanics find new way to save the environment and money

    Some mechanics have reported a 50% savings in cleaning time by turning to an ultrasonic parts cleaning machine while taking advantage of an ecologically safe alternative to manual cleaning with toxic chemicals. With today's industrial sized ultrasonic cleaners, the speed of ultrasonic cleaning to remove soils is combined with the capacity to clean multiple parts at once. Let's take a look at some ...

  • Environmental impacts of ocean-energy systems: a life-cycle assessment

    Ocean-energy technologies — which harvest renewable energy from the sea — will have a significant role to play in a future low-carbon society. A recent life-cycle analysis of different ocean-energy devices has found that life-cycle environmental impacts are caused mainly by the materials used in the mooring, foundations and structures. Improving the efficiency and lifespan of the ...

  • NPO Saturn - aero engine noise certification

    The Company Aircraft engine manufacturer, NPO Saturn, was established on July 5, 2001 through the merger of Rybinsk Motors JSC and A. Lyulka-Saturn, a leading Russian aircraft engine design bureau. The company, founded by Pavel Aleksandrovich Soloviev, has its headquarters in the town of Rybinsk and holds a 50% stake in the PowerJet joint venture with Snecma. NPO Saturn is the leading Russian ...

  • Innovation risk slows offshore wind foundation development

    As offshore wind technology develops ever more gigantic machines further from shore into deeper waters, it is common wisdom that new foundation technologies are needed. But are they? Monopile, and some jacket foundations, still dominate the offshore wind market in commercial operation. Prototype floating foundations are performing well in demo or pilot projects, but scaling up is only ...

  • Balancing the future of Europe`s coasts — knowledge base for integrated management

    This report has three elements. Firstly, it gives a snapshot of the current state of Europe's coastal regions. Secondly, it assesses the policies used to manage coastal regions, and discusses the proposal for a new European directive to improve the management of coastal regions. Thirdly, it highlights the need for better information and better monitoring tools to help inform this management ...

  • Wind & solar energy and nature conservation

    Climate change and the degradation of ecosystems and biodiversity cannot be solved in isolation. Land and marine ecosystems play a crucial role in the climate system, capturing roughly half of carbon dioxide emissions generated by human activities (UNEP, 2009). Protecting biodiversity preserves ecosystem services that are important for regulating the climate and helping us to adapt to the impacts ...

  • Offshore Wind Development Picking Up Pace

    Wind power is the world’s leading source of renewable electricity, excluding hydropower, with 238,000 megawatts of capacity installed at the start of 2012. Thus far, almost all of this wind power has been tapped on land; worldwide just 4,600 megawatts of offshore wind farms were operating as of mid-2012. Offshore wind capacity is growing quickly, however, expanding nearly six-fold ...


    By Earth Policy Institute

  • Taking Fossil Fuels to the Next Level - Standards Underpin Extraction, Processing and Distribution

    To the average person, the oil and gas industry may appear simple — a matter of literally tapping into a natural resource and distributing it to customers. Of course the matter of extraction is rarely simple, and in the case of emergent hydraulic fracturing technology, it is particularly complex and capital-intensive. In fact, the world of petroleum and natural gas extraction, distribution ...


    By ASTM International

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