Geothermal power plant Articles

  • Projects Newberry EGS Demonstration, Oregon - Case Study

    The Newberry EGS Demonstration project is the site of cutting-edge research into enhanced geothermal systems (EGS) development.  AltaRock Energy began investigating the Newberry site for EGS development in 2009 . The project site is located on the western flank of Newberry Volcano in Central Oregon and aims to improve the feasibility and viability of EGS technologies and applications. The ...


    By AltaRock Energy, Inc.

  • Exergoeconomic evaluation of a geothermal power plant

    In this study, exergy and exergoeconomic analyses of the Dora II geothermal power plant (DGPP) with 9.5 MW net power output are carried out by using real thermodynamic and cost data. The exergetic efficiency of this plant is calculated to be 29.6%. The highest exergy destruction rate among the DGPP components occurs in the cooling towers followed by the turbines, vaporisers, preheaters and pumps. ...


    By Inderscience Publishers

  • Heat as a by–product or sub–product of CO2 storage in mafic and ultramafic rocks

    Since carbonates are at a lower energy state than free CO2, storage through carbonation of silicate rocks is thermodynamically favoured and proceeds spontaneously by releasing heat. In an in–situ CO2 injection site, the heat released in these exothermic reactions can be exploited in a geothermal power–plant, effectively contributing ...


    By Inderscience Publishers

  • Performance optimisation of the combined single flash binary geothermal power plant

    In this paper, the optimal operating conditions of a hypothetical combined single flash-binary geothermal power plant are investigated and performance analyses are performed based on Aydin-Germencik field in Turkey. The relationship between flashing pressure, turbine inlet pressure of the binary cycle and total heat transfer area of the heat exchanger are determined for maximum power output of ...


    By Inderscience Publishers

  • The effect of ambient temperature fluctuation on the performance of geothermal power plants

    Seasonal and diurnal temperature fluctuations have significant effects on cooling water temperature and on the condenser temperature. The power produced by plants that utilise a low temperature resources, such as geothermal units, are more susceptible to ambient temperature fluctuations than conventional power plants. An exergy analysis was performed to evaluate the effect of ambient temperature ...


    By Inderscience Publishers

  • Exergy analysis and pressure optimisation of geothermal binary power plants

    Binary geothermal power plants are used for power production from moderate temperature geothermal reservoirs (85-170°C). In performance analysis of those plants, the second law of thermodynamics is used like in other conventional power plants. In this paper, the exergy analysis and pressure optimisation methods are described for binary power plants. The method described is applied to a ...


    By Inderscience Publishers

  • Exergy analysis and performance evaluation of Kizildere Geothermal Power Plant, Turkey

    Conventional geothermal power plants (GPP) differ from fossil-fuel power plants (FFPP) in many ways. The most specific ones are that GPPs are not cyclic plants and the working fluid is not pure steam. Geothermal steam contains non-condensable gases (NCG) which degrade power plant efficiency. This discrepancy leads to two considerations in energy and exergy analysis of GPPs. One is that the amount ...


    By Inderscience Publishers

  • Boron pollution due to geothermal wastewater discharge into the Buyuk Menderes river, Turkey

    Kizildere, which is the only commercial geothermal power plant in Turkey and located in Buyuk Menderes Graben in south-west Turkey, discharges annually 6 million tonnes of wastewater into the Buyuk Menderes river, creating environmental pollution. Currently, the wastewater, which includes up to 24 mg/l boron, is discharged into the river at a rate of 750–1500 tonnes per hour. The temperature of ...


    By Inderscience Publishers

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