turbine design Articles

  • A new design of a highly efficient hydraulic turbine on the basis of the specific hydrodynamic effect

    Traditional free flow turbines slow down water stream using its kinetic energy. This article describes a method for deriving energy from a free water stream using a unique hydraulic turbine which unlike traditional hydraulic turbines speeds up the water stream using potential energy thanks to a specific hydraulic effect. The article also describes a method of mathematic calculations of output ...


    By IWA Publishing

  • 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

  • The effect of ocean waves on offshore wind turbines

    The Ocean has a varying surface roughness where the roughness length is determined by the characteristics of the waves. In this paper, a method is established where the roughness length of the ocean is calculated from the wind speed and the fetch length. The fetch length depends on the wind direction and a case study is performed for a wind turbine exposed to wind blowing in two opposite ...


    By Inderscience Publishers

  • Comparative study of the performances of twisted two-bladed and three-bladed airfoil shaped H-Darrieus turbines by computational and experimental methods

    The vertical axis H-Darrieus turbines are simple in construction, self-starting, omni-directional, and self-regulating at all wind speeds. A comparative study of the performances of twisted two-bladed and three-bladed airfoil shaped H-Darrieus turbines was made. The models of the turbines were designed, fabricated, and tested in a subsonic wind tunnel. The power coefficients (C ...


    By Inderscience Publishers

  • 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

  • Optimal criteria based on the ecological function of an irreversible intercooled regenerative modified Brayton cycle

    The optimal criterion of an irreversible regenerative intercooled modified Brayton cycle heat engine based on the ecological function is presented in this paper. The ecological function defined as the power output minus the dissipation due to irreversibility has been optimised with respect to the cycle temperatures and the optimum performance parameters are calculated for a typical set of ...


    By Inderscience Publishers

  • 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.

  • An introduction to reactive power compensation for wind farms

    The paper summarises the refereed contributions of seven articles reviewed for publication in the IJETP – Special Issue on "Reactive compensation for wind farms". The main goal of the special issue is to provide a forum to exchange information on the reactive power compensation requirements for wind farms and introducing possible price mechanisms for today's deregulated power industry. ...


    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 ...

  • Sensitivity analysis and thermo-economic optimisation of Steam Injected Gas Turbine cycle design parameters

    The purpose of the present work is to apply thermo-economic concepts to a Steam Injected Gas Turbine (STIG) electricity generation system and optimise it to indicate its economical advantages over a simple gas turbine. The system incorporates a combustion chamber, gas turbine, a compressor and a Heat Recovery Steam Generator (HRSG). A detailed sensitivity analysis was also performed to examine ...


    By Inderscience Publishers

  • 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

  • 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 ...

  • Modelling and exergoeconomic optimisation of a gas turbine with absorption chiller using evolutionary algorithm

    In this paper, thermodynamic modelling of a gas turbine cycle with absorption chiller is performed. A thermoeconomic approach is utilised to find the most optimal values of design parameters for practical applications. Some design parameters considered are compressor pressure ratio, compressor isentropic efficiency, gas turbine isentropic efficiency, gas turbine inlet temperature, HRSG pressure, ...


    By Inderscience Publishers

  • Modelling of the hydro-generator local network operation and load disturbance rejection

    The paper describes models of the local network operation of the hydraulic turbine-generator unit. Two different models are proposed. They describe the dynamic behaviour of a system in which the unit is connected to an equivalent system. A nonlinear model of the interconnection to an equivalent power system is considered. An optimal controller for load disturbance rejection in water turbine speed ...


    By Inderscience Publishers

  • Tidal power - A different perspective

    Kepler Energy is taking a different approach to tidal power, applying a design that can be used in benign sea conditions in a location closer to end-demand and which could generate utility-scale quantities of power, as Peter Dixon explains.The physical environment of tidal turbines is clearly very different to that of wind turbines, not least because water is a lot denser than air! However, ...


    By Kepler Energy

  • Gilman dam hydro - Case study

    The Gilman Hydro Project is located partly in the Village of Gilman, in Essex County, Vermont and partly in the town of Dalton, New Hampshire. In effect, the boundary between the two states passes through the plant, so that two of the facility’s four generating units are in New Hampshire, and the other two are in Vermont. In 2010, CHC supplied a 1225 mm camel back turbine assembly ...

  • Exergy performance analyses of an irreversible two–stage intercooled regenerative reheated closed Brayton CHP plant

    A combined heat and power (CHP) plant model composed of an irreversible constant– temperature heat reservoirs two–stage intercooled regenerative reheated closed Brayton cycle and a heat recovery device is proposed using finite time thermodynamics. By taking dimensionless exergy output rate and exergy efficiency as the objectives, the performance of the plant is investigated. The two cases with ...


    By Inderscience Publishers

  • Performance estimation of HAWT blade using NACA airfoils

    Wind energy is one of the developing resources of renewable energy. In order to increase the use of wind energy, development of wind turbine blade with higher power coefficient plays a vital role. The work being presented here is to give new design of blade for VESTAS V82–1.65MW (HAWT). In this work, NACA airfoils are used for the determination of aerodynamic performance characteristics of ...


    By Inderscience Publishers

  • 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.

  • Additional Power Production, Little River Hydro - Case Study

    Little River Hydroelectric project utilizes water conveyed by the Little R. in Troy, North Carolina .  The Project would add additional power production to the  preexisting HPP.  We developed the Project concept through existing site information including flow data, topography, site visits, discussions with Hydrodyne Industries, and information from equipment vendors. ...


    By Rickly Hydro

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