gas turbine blade Articles

  • 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

  • Performance of water/steam injected gas turbine power plants consisting of standard gas turbines and turbo expanders

    The present study was done to investigate the performance differences in terms of thermal efficiency and specific power output of: combined cycle power plants with integration of low temperature regenerative heat, standard gas turbines operated in wet cycle mode, turbo expanders and steam turbines (here: alternatives); combined cycle power plants with integration of low temperature regenerative ...


    By Inderscience Publishers

  • Risk-based maintenance of gas expansion turbines in steel plant

    Unexpected failures, loss of production, higher maintenance costs and down time associated with the failures of equipment are major problems in any plant. Adopting the risk-based maintenance (RBM) approach helps in designing an alternative strategy to minimise the loss resulting from these breakdowns or failures. The methodology consists of four modules: system definition, risk assessment, risk ...


    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 Foundation

  • 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 Corporation

  • 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.

  • 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.

  • 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.

  • Analytical Devices for the Measurement of Water Vapor and Hydrocarbon Dew-Point in Natural Gas

    Introduction The determination of water vapor (water dew point) is crucial in the processing, custody transfer and transport of natural gas. High levels of water vapor in a natural gas stream can lead to a number of problems which include the formation of hydrates and the contribution to corrosion of plant and equipment. Furthermore, water vapor present in natural gas streams affects the ...

  • Heavy Duty 126 MW GT upgrade for aerodynamic performance improvement

    Scope of the Project Turbine Services Ltd. , a supplier of replacement parts for GE Large Frame Gas Turbines, has worked with SoftlnWay's engineering team on the redesign of the third stage of the GE Frame 9E heavy duty gas turbine. The scope of this project included the redesign of the third stage vanes and blades to create components competitive with the GE Advanced ...


    By SoftInWay Inc.

  • VSEP filters mixed metal hydroxides and improves efficiency at an Electrochemical Machining facility

    Electro-chemical machining (ECM) technology is a relatively new process that is utilized by aviation engine parts manufacturers. The parts manufactured include: forged cases for turbine engines, gas turbine fan and compressor blades, and machined turbine vanes, blades, disks, seals and shrouds. This technology is used to produce turbine engine components primarily from nickel-based and ...


    By New Logic Research, Inc.

  • Case Study - Siemens Industrial Turbomachinery AB

    Problem Two large gas turbines (approximately 25m x 12m x 10m) were installed in an industrial area nearby an office building. The gas turbines generate a tonal noise component at around 2700Hz caused by the inlet channel blades pass frequency. This tone imposes a more stringent noise requirement on the supplier, forcing noise reducing actions being made on the turbine. ...


    By Norsonic AS

  • Pushing the Limits of Reengineering

    Cutting-edge turbine technology enables more efficient and cleaner power generation. However, the service of advanced gas turbines is challenging—especially when parts need to be replaced. The example of a blade replacement project shows how Sulzer establishes innovative reengineering processes and contributes to a secure energy supply that causes less carbon emission. A Sulzer ...


    By Sulzer

  • Reducing the Detection Limits for a Process Moisture Analyzer

    KEYWORDS Moisture Analyzer, Piezoelectric Sensor, Smart Transmitter, Internal Verification, Quartz-Crystal Microbalance ABSTRACT Piezoelectric moisture analyzers have been used in the process industry for over two decades. While this is an older technology for measuring moisture in gas phase samples, it is still one of the most reliable in ...

  • Los Angeles County Sanitation Districts: Siloxane Removal

    Los Angeles County Sanitation Districts have long been involved with recovering landfill and digester gas for energy to power turbines and internal combustion engines. Their experience led them to identify performance issues associated with these gases. One particular challenge is siloxanes. Cyclic organic silicon monomers (siloxanes) used in the manufacture of personal hygiene, health care and ...


    By Pioneer Air Systems

  • Case study - Water quality monitoring and weather data at Pampulha Lake-Brasil

    In 2010, OTT Hydromet's partner in Brasil,  Hexis began working with CETEC. This resulted in the installation of a buoy, equipped with an automatic profiling system, in early 2013. The project’s objective is the continuous monitoring of the lake’s water quality, with focus on improving this by the 2014 World Cup Games.  Adcon, Lufft and OTT technologies (Hydrolab DS5X ...

  • Case study - E.ON Power Plant Nuremberg

    Water level, water flow and discharge are monitored at two inflows of the E.ON electricity power plan Franken I, using the OTT SLD, with horizontal Doppler-flow sensors. The purpose of this measurement is to optimize the operation of the plan which partly covers the demand for electricity in the conurbation of Nuremberg-Fuerth-Erlangen.  OTT technologies for this project have been in use ...

  • Unbeatable Proximity

    When it comes to refurbishing a rotor in a power plant, delivery time and shipping costs play a major role. Because of its nearby service center, Sulzer was able to make an unbeatable offer to an Indonesian customer and even bring a retired rotor back into operation. Indonesia contains large oil reserves, e.g., at the Duri Field in Sumatra. There, a cogeneration power plant ...


    By Sulzer

  • 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

  • Reliable silica monitoring supports power station efficiency

    West Burton B CCGT is a Combined Cycle Gas Turbine power station near Nottingham in the UK. It has three open-cycle gas turbines capable of generating enough electricity for approximately 1.5 million UK homes. In common with all combustion based power stations, the CCGT has a requirement to monitor silica levels in the Plant’s water and steam processes. Sean Todd, the Plant’s Control ...

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