gas turbine Articles

  • Turbine Inspection

    Recent advances in natural gas exploration and extraction technology have led to skyrocketing projections of the amount of recoverable natural gas within US borders. This energy boom will result in the expanded use of gas-fired power plants to provide electricity to US homes and businesses over the coming decades. Not only does this mean cleaner and more abundant energy for the US environment and ...


    By RF System Lab.

  • Thermal Power Gas Turbines Market Analysis to 2020

    RnRMarketResearch.com adds report “Gas Turbines for Thermal Power, 2014 Update – Global Market Size, Average Pricing, Equipment Segmentation and Competitive Landscape Analysis to 2020” to its store.   “Gas Turbines for Thermal Power, 2014 Update Global Market Size, Average Pricing, Equipment Segmentation and Competitive Landscape Analysis ...


  • Evaluation of Gas Turbine Startup and Shutdown Emissions for New Source Permitting

    Utility deregulation and the increase in electrical demand have led to a surge in new gas turbine-based power projects. This paper examines the regulatory issues relating to startup/shutdown emissions, emissions profiles during gas turbine startups/shutdowns, annual emissions calculations, a methodology for evaluating the air quality impacts of startup emissions, and compliance with emission ...

  • Optimisation of micro gas turbine by exergy, economic and environmental (3E) analysis

    This research proposes a new method for optimisation of a power generation system based on exergy fuel cost and external social cost of air pollution. A thermodynamic model is provided to estimate the outlet mass flow rates of CO2, CO, NO and NO2 for a gas turbine based on maximising the first and second law efficiencies and minimising the objective function. Results show that inclusion of the ...


    By Inderscience Publishers

  • Energy and exergy analysis of reverse Brayton refrigerator for Gas Turbine power boosting

    In this study the use of Reverse Brayton cycle to boost up the power of gas turbine power plants operating in hot humid ambiance is analysed by the energy and exergy methods. The gas turbine inlet temperature is reduced by mixing the chilled air from Brayton refrigeration cycle and the main intake air stream reaching low intake temperatures. In this paper the effect of irreversibilities in the ...


    By Inderscience Publishers

  • Exergy analysis of gas-turbine systems with high fogging compression

    Gas-turbine cycles with high fogging compression could offer enhanced efficiency and low complexity. Whereas compression power and heat rates decrease when small amounts of water (up to 2% of air flow by mass) are injected at the machine inlet, increased injection amounts could allow implementation of regeneration, further decreasing the heat rate. In this study, an exergy analysis is carried out ...


    By Inderscience Publishers

  • Animation: How Wind Turbines Work

    The windmill, which converts wind into rotational energy to mill grain or pump water, has been around since antiquity. It’s even been claimed that Ancient Babylonians planned to harness wind as early as almost 4,000 years ago, as part of a scheme for one of Hammurabi’s ambitious irrigation projects. By the end of the 19th century, wind energy took on a whole new meaning as engineers ...


    By GLOBE SERIES

  • Exergy analysis of a combined fuel cell and Gas Turbine Power Plant with intercooling and reheating

    This paper presents a comparative exergy study of the performance of various gas turbine power generation plants and a high temperature Solid Oxide Fuel Cell (SOFC). The overall system is analysed and its exergy efficiency and exergy destruction are obtained, as well as individual models of each component. The results for selected operating conditions are compared against past literature data. ...


    By Inderscience Publishers

  • The economic benefits of HEPA-grade filtration for gas turbine operation in the power generation industry

    Everywhere we look these days, one message stands above all the rest: energy must be used with greater efficiency Global energy demand is estimated to rise between 25 and 30 percent between now and 2040, fueled by growth in economic output and by a growing population in which billions of people —despite working hard to advance their standards of living — subsequently and inevitably ...


    By AAF International Ltd.

  • Case study: Ahlstrom’s gas turbine air intake filter media helps to save energy, CO₂ and cost

    Finding new methods for saving energy is a global megatrend. Implementing technology that saves energy will have a positive impact on sustainability. Gas turbines are widely used for energy production as natural gas is one of the cleanest burning fuels and nowadays even more interesting source of energy. One of the most important parts in a gas turbine is the blade section, which converts the ...


    By Ahlstrom-Munksjö

  • Hansen transmissions - wind turbine gearbox testing with PULSE

    The Wind Energy Market Wind energy is one of the fastest growing power generation technologies. The level of annual installed capacity has grown at an average rate of 27.6% p.a. for the past five years. High fuel prices and increased focus on global warming and renewable energy resources have contrib- uted to an increased investment in the development of wind technology over the last three ...

  • In situ weld repair of blade tenon of steam turbine in a power plant

    During one of the routine inspections in a nuclear power plant, it was found that a tenon of one of the third-stage blades of the Low-Pressure (LP) turbine had been worn/broken off the turbine blade, leaving only the remaining tenon riveted to the shroud piece. With only one of the two tenons remaining, the blade was at risk of getting freed from the shroud piece. Hence, it was necessary to ...


    By Inderscience Publishers

  • GE, Harbin form joint venture to market wind turbines in China

    GE Energy (Atlanta, GA) announced that it has formed a joint venture with China’s Harbin Electric Machinery (HEC) to produce GE-designed wind turbines for sale in the Chinese wind energy market. Anticipating a six-fold increase in China’s wind power capacity by 2020, the joint-venture company will produce turbines for both terrestrial facilities and offshore wind farms. GE ...

  • Full steam ahead: a look at steam Turbines and how the Speed of development is accelerating

    A whole ecosystem is built around steam turbine technology, consisting of manufacturers, service providers and owner operators. The technology has grown from simple marine applications to many different types of power generation, processing and other applications. Major players have pursued several approaches to growth and new product development: mergers & acquisitions; licensing and core ...


    By SoftInWay Inc.

  • Microturbines, Gas Engines Link Biogas to the Grid

    OPPORTUNITIES to produce electricity from methane are being improved continuously as manufacturers introduce new and upgraded equipment to address market needs and varying characteristics of raw biogas. In the renewable energy from organics recycling arena, the two primary types of electricity generation equipment are microturbines and reciprocating gas engines. This article provides a brief ...


    By BioCycle Magazine

  • Natural Gas Overlooked in Obama's Clean Power Plan

    NatGas: The Unnoticed Bridge to Achieving Obama's Clean Power Initiative Los Angeles, CA – (September 18, 2015) – It is now apparent that the Obama Administration’s Clean Power Plan aims to significantly reduce the amount of power generated by coal. It’s a game changer for utilities, mining companies and equipment suppliers. And, it’s ...

  • The natural gas revolution: Good or bad for energy efficiency?

    If there were an equivalent in the energy industry to Time Magazine’s Person of the Year, natural gas would be this year’s winner. The dramatic rise in natural gas supply, and fall in price, has reconfigured the energy scene in the United States, suddenly creating a bounty of domestic energy, driving down wholesale power prices and speeding retirement of polluting coal-fired plants. ...

  • Development of Pre-Turbo Catalyst for Natural Gas Engines

    Distributed power generation is an efficient method for reducing CO2 emissions through the elimination of transmission losses. Co-generation has similar benefits with higher thermal efficiency. Natural gas engines are very popular for these applications. Unfortunately, these engines emit significant levels of methane, ...


    By DCL International Inc.

  • Full-energy-chain greenhouse-gas emissions: a comparison between nuclear power, hydropower, solar power and wind power

    Fair comparison of the climate impacts from different energy sources can be made only by accounting for the emissions of all relevant greenhouse gases (GHGs) from the full energy chain (FENCH) of the energy sources. FENCH-GHG emission factors of most of the non-fossil fuel energies are lower than those of the fossil fuels that are in the range of 500-1200 g CO2/kW h(e). The improvement ...


    By Inderscience Publishers

  • Thermodynamic analysis of an integrated gasification combined cycle power plant: effect of nitrogen supply on system performance

    A comprehensive thermodynamic analysis of a conceptual integrated coal gasification combined cycle power plant is presented. Energy and exergy efficiencies and exergy destructions of each sub–unit are calculated. The effect of nitrogen, which is supplied from the Air Separation Unit (ASU) of the gasification unit to the combustion chamber of the gas turbine (GT) cycle, on system performance is ...


    By Inderscience Publishers

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