Steam Turbines Articles

  • 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.

  • Case Study - Aluto Langano Power Plant Rehabilitation

    Aluto Langano, Ethiopia – 2007 The Aluto Langano Geothermal Pilot Plant (ALGPP) is located on the Aluto volcanic complex of the Ethiopian Rift valley, close to the eastern escarpment between Lake Langano and Lake Ziway, some 200 km southeast of Addis Ababa. The Aluto volcanic complex is a young acidic system consisting of domes, lava, and pyroclastic interbeds. The geothermal field was ...

  • Overhaul Completed in Just 30 Days

    Sulzer completed an overhaul of three General Electric steam turbines and five Clark compressors for a large ethylene plant in Colombia. Sulzer’s service centers in Texas and Bogotá worked together to inspect and repair the three turbines. Sulzer staff helped the customer with project planning, full commissioning, and testing within a very tight timeframe. The city of ...


    By Sulzer Management Ltd

  • Steam Turbine Rotor Transient Thermo-Structural Analysis and Lifetime Prediction

    Market requirements for faster and more frequent power unit start-up events result in a much faster deterioration of equipment, and a shorter equipment lifespan. Significant heat exchange occurs between steam and turbine rotors during the start-up process and even more intensive heat exchange takes place during the condensation phase in cold start-up mode, which leads to further thermal stresses ...


    By SoftInWay Inc.

  • Exergoeconomic analysis of a Kalina cycle coupled coal–fired steam power plant

    This paper presents exergoeconomic analysis of a Kalina cycle coupled coal–fired steam power plant using specific exergy costing (SPECO) methodology. Cost–balance and auxiliary equations are developed and solved. The results indicate that in the topping cycle, the boiler and the turbine contribute maximum to the formation of product cost. High value of exergoeconomic factor for the boiler ...


    By Inderscience Publishers

  • Upgrade of turbine intake damper controllers on SS Cape Isabel - Case Study

    Overview SS Cape Isabel is a 655ft, 15,000 ton roll on/roll off cargo ship based at Long Beach and operated by the US Military Sealift Command. Launched in 1976, the ship is powered by two steam turbines. The Reason The ship’s two turbine intake radial vane dampers were equipped with pneumatic controllers (actuators) which were now obsolete. The old ...


    By Rotork

  • Modelling and exergoeconomic based design optimisation of combined power plants

    In this research a combined cycle power plant (CCPP) which can provide 80 MW of electrical power has been studied. The design parameters of the plant were chosen as: compressor pressure ratio, compressor isentropic efficiency, gas turbine isentropic efficiency, and turbine inlet temperature, pinch difference temperature, steam turbine inlet temperature, steam turbine isentropic efficiency, ...


    By Inderscience Publishers

  • EDI for Power Plants -- Importance of silica

    Power plants use high purity water to drive steam turbines. Cogeneration plants are highly efficient, using both exhaust turbines and high pressure steam turbines. In the 1960's, boilers operated at 450C (840F) and 4MPa (40 atmospheres). Today's leading edge boilers operate at 620C (1150F) and 30MPa (300 ...


    By SnowPure Water Technologies

  • Development of a tribological failure knowledge model

    Many of the component failures occurring in service can be delayed by better incorporation of tribological principles into engineering design and maintenance. However, the concept of tribology has not yet penetrated successfully into the industry in general and there is an urgent need for the practical tribology design criteria and transference of tribological knowledge to the engineering ...


    By Inderscience Publishers

  • Elsta

    Elsta (Electricity and Steam Association), a power producer in Hoek, Terneuzen, Netherlands, delivers steam and electricity to Dow Benelux, the largest Dow facility in Europe, as well as electricity to the local grid. Elsta produces the steam and electricity, utilizing three gas turbines with a combined capacity of 375 megawatts (MW) and a steam turbine that produces 100 MW. Elsta chose ...


    By Rockwell Automation, Inc.

  • 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

  • Numerical simulation of a large power steam turbine run-up

    The purpose of this paper is to propose a new behavioural evaluation of a large steam turbine during the run-up period based on a numerical simulation of the transient fluid dynamic processes that occur in the turbine during start-up. The transient process begins when the run-up valve starts its opening trip and ends when the rotor speed achieves the required value. This original approach is a ...


    By Inderscience Publishers

  • Implementing a Progressive Strategic Plan for Energy Optimisation

    In today’s climate of increased energy prices and tightening environmental emissions requirements, refineries around the world are continuing to focus on optimising energy consumption at their facilities. Over the past few years, while energy prices have been increasing, refiners have made progress toward improved overall energy performance by implementing energy efficiency programs. In general, ...

  • The 700?C steam turbine power plant ? status of development and outlook

    This paper appraises the current development status of the 700?C steam power plant under consideration of process optimisation as well as design aspects of the steam turbine and steam generator. The results for a compact arrangement of the steam turbine and steam generator are also presented. Based on a cycle analysis, a net efficiency between 49.3% and 51.4% can be achieved with the 700?C steam ...


    By Inderscience Publishers

  • VSEP improves industrial boiler performance and reduces blowdown frequency by a factor of ten

    In the steam boiler industry, high purity feed water is required to ensure proper operation of steam generation systems. High purity feed water reduces the use of boiler chemicals due to less frequent blowdown requirements (reducing blowdown frequency by as much as a factor of 10). Lower blowdown frequency also results in lower fuel costs. Scale buildup is reduced due to a smaller concentration ...


    By New Logic Research, Inc.

  • Quantifying Combined Heat and Power (CHP) activity

    In CHP plants without heat rejection facilities power, output is complementary to the recovery of heat, and all activity is cogeneration. CHP plants with heat rejection facilities can operate a mix of cogeneration and condensing activities. Quantifying the energy flows of both activities properly requires knowledge of the design power-to-heat ratios of the CHP processes (steam and gas turbines, ...


    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

  • Thermodynamic and thermoeconomic comparison of combined cycle cogeneration systems

    In this paper, several configurations of combined cycle cogeneration systems are investigated by energy, exergy and thermoeconomic analyses. In each of these configurations, varying steam demand is considered rather than fixed steam demand. Among the different approaches for thermoeconomic analysis in the literature, the specific exergy costing method is applied. Since the systems have more than ...


    By Inderscience Publishers

  • Steam driven large multi effect MVC (SD MVC) desalination process for lower energy consumption and desalination costs

    Abstract It has been published and demonstrated in operating plants that the low-temperature multi effect desalination process (LT MED) when operated on turbine backpressure steam requires minimal energy consumption yielding specific desalination energy costs approaching values of optimal RO energy costs. However due to variations in electricity demand, the operation of large steam turbines ...


    By IDE Technologies

  • 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

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