low wind speed site Articles

  • Estimates of lateral dispersion parameters in low wind speed conditions

    Wind speed time series recorded during stable low wind speed conditions are typically non–stationary, with large horizontal oscillations, commonly known as meandering. In this paper, two wavelet–based methods are proposed to obtain lateral dispersion coefficients from such time series. These methods, associated with a specific wind model, have been tested by using wind velocities recorded, with ...


    By Inderscience Publishers

  • Optimal control of matrix converter based WECS for performance and stability enhancement at low wind speeds

    In this paper, optimal control of new wind energy conversion scheme where four-leg improved matrix converter (MC) is used for performance and stability enhancement, particularly for sites where most of the time low wind speeds prevails, has been explained. The power factor at the interface with the grid is controlled by the MC to ensure purely active power injection into the grid for optimal ...


    By Inderscience Publishers

  • The advantage of speed for damper drive applications - Case Study

    Overview There certainly is no substitute for speed. In nature, on the athletic field or on the computer, superior speed makes all the difference. Pneumatic-powered damper drives are excellent choices for speed sensitive installations. There are no motor windings or gear sets that can compete on pure speed applications the way a quick acting pnuematic drive can react. For combustion air and ...


    By Rotork

  • Measuring Offshore Wind Resources

    To select the right offshore wind site, estimate the future energy output of a wind farm, and determine the best layout for the turbines, project developers must conduct wind resource assessment (WRA) campaigns on site. This is a critical phase of the successful development of wind farms. WRA campaigns on terrestrial sites have traditionally been performed using meteorological towers equipped ...


    By Renewable NRG Systems

  • EPA wind farm project for open space and site noise evaluation and measurement criteria

    EPA is a Cabinet level executive agency responsible for protecting and conserving the environment in the Republic of China including air quality, noise control, monitoring and inspection of the environment, solid waste, recycling, sustainable development and international cooperation. It is led by the Minister for Environment, Stephen Shu-hung Shen. The Environmental Protection Agency has evolved ...

  • Reducing avian collisions with wind turbines

    Wind is an important renewable energy source for Europe. The wind power capacity installed in 2014 could produce enough electricity to meet over 10% of the EU’s electricity consumption. However, wind power structures can also be harmful to birds, which can collide with turbines. This study assessed methods of reducing avian collisions with wind turbines and makes several practical ...

  • Feasibility Study of Wind Power in India - 2014

    This is an Investor Series report which provides the information on: Wind Turbine Design and Characteristics Permits and Licensing Site Selection Criteria Economics and Financial Model Operations and Maintenance Modern Trends in Wind Farms Case Study in Wind Sector Grid Connection ...


  • Small Wind Turbines tested: “Fortis Montana best performance”

    The market for commercial wind turbines is maturing even as they get bigger and bigger, but the market for small wind turbines is quite young, with some people comparing it to the car industry early in the 19th century. Although some manufacturers have been in the business for over two decades, most suppliers are from this millennium. And that shows. As in most immature markets, there are ...


    By Fortis Wind Energy

  • Wind-driven SVE system extracts VOCs from landfill

    An innovative soil vapor extraction (SVE) system has operated at the former Ferdula Landfill site in Frankfort, NY, for the past 10 years. The system relies on wind-driven vacuum processes rather than electrically powered air blowers to extract volatile organic compounds (VOCs) from the landfill. After a two-year trial beginning in 1998, the New York State Department of Environmental Conservation ...

  • Summer hydroclimatology of an extensive low-gradient wetland: Polar Bear Pass, Bathurst Island, Nunavut, Canada

    Polar Bear Pass (PBP) (75°40′N, 98°30′W) is considered a critical wetland area for migratory birds, caribou and muskox. Little is known of its climatology and hydrology. Here we evaluate both the short-term and long-term summer climatic record for this wetland. A 10 m high automatic weather station (AWS) was established here 27 years ago, and in 2007 this centrally located AWS was supplemented by ...


    By IWA Publishing

  • A hybrid wind/solar/diesel stand alone system optimisation for remote areas in Algeria

    While Algeria has an important potential of wind and solar energies, their share in the primary energy supply is relatively low compared to the fossil energy. In this paper, we propose to carry out a techno–economical study of a hybrid stand alone system in order to draw the attention to the feasibility of such systems. For this purpose, sites of Hassi–R'mel and Adrar have been ...


    By Inderscience Publishers

  • Gill Instruments case study featured in AWE International

    AWE International magazine, which is focused on the environmental analysis industry, recently featured Gill Instruments in a case study about environmental monitoring with solid-state meteorological instruments. The case study includes information about all of the products within the Gill Instruments range, with information about their advantages within the environmental analysis field. We have ...


    By Gill Instruments Limited

  • Gill MetPak II weather station used to protect maltese prehistoric temples case study

    Weather data provided by the Gill MetPak II Weather Station increases understanding of the affects of weather and climate on stone structures. The Gill MetPak II Weather Station is being used as part of a comprehensive air monitoring system at a prehistoric temple site for the Maltese Department of ...


    By Gill Instruments Limited

  • The McGowans, Perthshire, Scotland

    The McGowans’ Gaia-Wind turbine powers their water bore hole; cattle sheds; and farmhouse and has given them control over their rising electricity bills. Purchased turbine: March 2010 Average annual energy production: 21,170 kWh Predicted payback period: 5-6 years “We own a mixed livestock and arable farm in Perthshire, Scotland. About two years ago ...


    By Gaia-Wind Ltd.

  • Validation of CALINE4 modelling for carbon monoxide concentrations under free-flowing and congested traffic conditions in Ireland

    Atmospheric dispersion model accuracy is dependent not only on the quality of the data used, but also on the methodology of the model and its user. The air pollution dispersion model CALINE4 (Benson, 1984; 1992) is commonly used in Ireland but was developed outside Ireland and has not been validated for use in Irish conditions. The objective of this work was to validate the use of the model for ...


    By Inderscience Publishers

  • Technical brief - FR standards for weather protection & containment enclosures

    Introduction The worldwide market for temporary enclosures has steadily increased over the last two decades as facility owners, engineers and contractors recognise the safety benefits and cost-effectiveness of installing temporary enclosures. Apart from minimising weather-induced delays to a project, scaffold sheeting enhances site safety by preventing debris and small objects from falling ...

  • Look what’s cooking in the world of renewable energy

    The solar and wind innovations that got us where we are today — and those waiting in the wings — point to a hopeful future. Inside a sprawling single-story office building in Bedford, Mass., in a secret room known as the Growth Hall, the future of solar power is cooking at more than 2,500 °F. Behind closed ...


    By Ensia

  • 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

  • Mangroves for coastal defence

    The role of mangroves in protecting our coasts against natural hazards such as storms, tsunamis and coastal erosion has been widely promoted. But the supposed coastal protection services of mangroves have also been subject to debate. The Nature Conservancy and Wetlands International together with the University of Cambridge set out to map the current state of knowledge about the role of mangroves ...


    By Wetlands International

  • Monitoring network for Scottish ports - Case Studies

    Historically, ferry masters operating off the west coast of Scotland would have to sail to a port and on arrival visually assess the weather and tide conditions before deciding whether safe berthing alongside the pier or quayside would be possible. This wastes time and fuel, and can causes immense frustration among passengers, who may see ferries come close to a port, but thereafter depart ...

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