Steam Turbines Articles

  • 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

  • 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.

  • Sliding pressure turbine integrated with seawater desalination facility (multi-effect distillation - med)

    Abstract This paper presents the technological features of the MED desalination plant integrated with a sliding-pressure ultra-supercritical steam turbine plants of the Tianjin project, in which the MED desalination units operate with a wide range of steam pressures. In general, clean and cost-effective power generation is of paramount importance to cope with the the increasing ...


    By IDE Technologies

  • Turbine condensers for propylene production

    Propylene is one of the most important compounds in the chemical industry. It's primarily used to make the plastic polypropylene, but also in many other processes. A propylene factory in Ningbo, China set Körting Hannover AG an exceptional process-engineering challenge. It appointed the company to design special turbine condensers to produce 600,000 tonnes of propylene per year. The ...


    By Körting Hannover AG

  • DESMI Lifts Green Ship Business Case

    New rules call for fresh approach It’s hardly news that the shipping industry is mobilising to meet the demands of wave after wave of new environmental regulations. From the IMO’s ballast water management legislation to EEDI (the Energy Efficiency Design Index for new ships) and SEEMP (Ship Energy Efficiency Management Plan), shipowners need to be ready to drastically cut ...


    By DESMI A/S

  • 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

  • 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

  • 1st Tech applications range case study

    Paper industry: roller, air compressor, after cooler, calender bowl, chemical scrubber, closed cooling system, condenser, cooling tower, gas cooler, heat exchanger, intercooler, filtrate tank, filtrate pipe, vacuum filter, vacuum pump, slush pump, lime pump, evaporimeter, digester, scrubber, flow box, squeezer, indirect cooler, absorption plant, gas steam room, steam ...


    By Mibo International Corp.

  • 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

  • PRME Naturally Gas Systems

    Your PRME Naturally produced biogas will come from biomass – not fossil fuels. Technically speaking, you will be firing gas produced by the thermal gasification of biomass. PRME’s NaturallyGas process design is not experimental or “under development”, but has been commercially firing industrial boilers for over eighteen years. PRME’s NaturallyGas Systems are ...


    By PRM Energy Systems, Inc.

  • 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

  • Exergoeconomic optimisation of steam power plant

    The second law of thermodynamics combined with economics forms a powerful tool for systematic analysis and assessment of energy systems. This paper presents an exergoeconomic optimisation of 50 MW steam turbine power plant associated with a large fertiliser industrial unit through Thermoeconomic Evaluation and Optimisation (TEO) method, and identifies the losses in various components. As the ...


    By Inderscience Publishers

  • Small project PSD cautions

    Following U.S. EPA’s promulgation of the PSD and Title V GHG Tailoring Rule, electric utilities, facilities with large industrial boilers, and other heavy industry manufacturing operations should be aware that the Prevention of Significant Deterioration (PSD) significance threshold for greenhouse gases (GHGs) may be the most stringent PSD triggering threshold for certain projects. Even ...


    By Trinity Consultants

  • 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.

  • IAEA's DEEP in Carlsbad: co-producing energy and water in Southern California

    The joint production of energy and desalinated water is examined in the context of the construction of a Reverse Osmosis (RO) plant at the site of the (fossil-fired) Encina Power Station in Carlsbad, California. The first part of the paper reproduces cost estimates of water at the Carlsbad Desalination Project. The second part of the paper reproduces these cost estimates using the International ...


    By Inderscience Publishers

  • 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

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