wind turbine engineering Articles

  • Finite element analysis of turbine generator rotor winding shorted turns

    Abstract Online magnetic flux monitoring via permanently installed air-gap flux probes is a well- established technology to determine the presence of shorted turns in a turbine generator rotor winding. Flux measurements are normally performed using flux probes installed in the machine air gap (on a stator wedge) and connected to portable or permanently installed instruments. In this ...

  • Amassing Wind Information

    Wind is a variable resource, but not an indecipherable one. Second Wind encourages harnessing the full range of wind sensing technologies that are available today. When it comes to wind information, much attention is focused on the choice of wind measurement technology and data collection practices in wind resource assessment and project design. Right now, wind data plays a limited role in the ...


  • New methods for measuring the wind

    Although computer models of wind flow over terrain have improved dramatically in the past few years, there is still no substitute for data recorded at the site. So you want to build a wind farm. Good for you. With the global drive towards a low carbon economy, it is surely the right way to go for many individuals, companies and, indeed, Governments around the world. As information from the ...


  • Desalination plant in Egypt runs on wind & sun

    Fortis Wind Energy (NL) and Juwi Renewable (DE) install a 100kW hybrid system in Egypt. Egypt, the land of the pyramids, is known to us for its ancient culture and the last year because of the uprisings for more democracy. Egypt is less known for its large population (83 million) lives along the Nile (only 5.5% of the surface). The rest of the country is desert. The River Nile runs into Egypt ...


    By Fortis Wind Energy

  • Automated Oil Particle Analysis Helps Prevent Gearbox Failures

    The major issue for premature failure in wind turbine gearboxes is bearing failure, which leads to gearbox failure. A wind turbine gearbox will not survive if the oil is not clean and especially if the hard ferrous particles are not removed from ...


    By Spectro Scientific

  • Automating oil particle analysis

    Run up to 25 samples at one time The major issue for premature failure in wind turbine gearboxes is bearing failure, which leads to gearbox failure. A wind turbine gearbox will not survive if the oil is ...


    By Spectro Scientific

  • Columbus, Georgia`s High-Efficiency, Low Cost, Digester-Gas-Fired Power Plant

    ABSTRACTGrowing concern over the cost of power and long-term availability of limited fossil fuel resources for the production of electricity have caused electrical utilities and governments to promote “green” or renewable power. Solar, wind, geothermal, biomass, biogas, and low-impact hydroelectricity are current acceptable green-power sources. Digester gas is a renewable, green energy resource ...

  • Opening the envelope on bearing vibration

    A sophisticated signal processing technique can help to pinpoint bearing failure at an early stage. Chris Hansford, Managing Director at Hansford Sensors, explains. Experienced operators can often tell if a machine is not working properly, on the basis that is does not ‘sound right’. The same principle can be applied – using modern electronics – to identify the exact cause ...


    By Hansford Sensors

  • Green Employer of The Week --Mar/23-29/13: Viridium Associates

    Viridium Associates, a London, UK-based recruitment firm is our employer of the week for Mar 23-29, 2013, with a total of ...


  • On energy, we`re finally walking the walk

    The United States has entered a new energy era, ending a century of rising carbon emissions. As the U.S. delegation prepares for the international climate negotiations in Copenhagen in December, it does so from a surprisingly strong position, one based on a dramatic 9 percent drop in U.S. carbon emissions over the past two years and the promise of further huge reductions. Prominent among these ...


  • PULSE smart start – a user’s experience

    Measuring on a Grounded Aeroplane   In the early days of PULSE, a team from Brüel & Kjær had the opportunity of performing a ground test on a Boeing 767. The left engine of the aeroplane had undergone a scheduled overhaul. The engine was reassembled and verified in a test cell. Everything seemed fine. The engine was mounted on the aeroplane and the aeroplane was ...

  • Why carbon capture and storage is vital, has no friends but must be backed

    James Smith, Chair of the Carbon Trust, sets out why we need to learn to love CCS - before it's too late In front of the Public Liaison Committee in Parliament last week the Prime Minister laid out the importance of carbon capture and storage to the setting of a 2030 carbon target and in helping resolve the current debate on how much gas in the UK it is safe to burn.  Just a month ...


    By Carbon Trust

  • Is technology the path to a lower carbon future?

    Advances in technology will keep energy supplies plentiful and affordable – enough to meet projected demand many times over — and help pave the way to a lower carbon energy mix, according to data published today in the BP Technology Outlook. “Technology opens up a whole range of possibilities across the energy sector,” said Bob Dudley, BP Group Chief Executive. “It ...


    By GLOBE SERIES

  • Santa Claus is Chinese -- Or -- Why China is Rising and the United States is Declining

    **Last year at this time, we released an Update entitled 'Santa Claus is Chinese,' which generated a lot of interest. Since little has changed, we thought you might like to see it again during this holiday season. I know Santa Claus is Chinese because each Christmas morning after all the gifts are unwrapped and things settle down I systematically go through the presents to see where they are ...


    By Earth Policy Institute

  • Is it better to burn or bury waste for clean electricity generation?

    The use of municipal solid waste (MSW) to generate electricity through landfill-gas-to-energy (LFGTE) and waste-to-energy (WTE)projectsrepresentsroughly14%ofU.S.nonhydrorenewable electricity generation. Although various aspects of LFGTE and WTE have been analyzed in the literature, this paper is the first to present a comprehensive set of life-cycle emission factors per unit of electricity ...


    By Novo Energy, LLC

  • EHS & EMIS

    L3.1  | Chemical Security: Sustainable Utilities through a Secure Power Grid Jeff Simmerman |  Lieutenant Commander USCG (ret), ERM On Christmas Day 2009, a young radicalized Detroit-bound passenger on a Northwest (NW) Flight 253 attempted to become a bomber aboard that flight with a liquid explosive. This liquid ...

  • A Commitment to Standards

    An Interview with Philip Piqueira, Global Standards Leader for GE’s Industrial Solutions Business General Electric participates in standards development through its work on numerous committees and organizations. Philip Piqueira discusses why this business strategy and its continuance is crucial for GE. From your perspective as the global standards ...


    By ASTM International

  • Break It Down, Build It Up - Sustainable Science Has Roots in ASTM Standards Development

    It was back in the 1980s,” Richard Wool, Ph.D., recalls. “A lot of waste management sites were running out of space. Barges full of garbage were plowing up and down the East Coast with no place to dock. The idea of having biodegradable plastics would address a number of issues like getting rid of the trash and cleaning up marine waste, which was becoming a huge issue at the ...


    By ASTM International

  • Green Careers: 400,000 environmental jobs by 2015

    The House of Commons Environmental Audit Committee (EAC) is currently conducting an inquiry into the prospects for green jobs and policies aimed at increasing employment in environmental industries. It will consider how the UK can maximise the environmentally positive opportunities arising from changes in public spending and how this might help with employment during the recession. The report ...


  • Description of the Wave Rocker - Technical version -

    Untitled Document Most people think about the sea and waves as something that moves up and down and something that rushes in and out. These observations are correct, but there are many other facts ...


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