The Experts below are selected from a list of 306 Experts worldwide ranked by ideXlab platform

Derek K Baker - One of the best experts on this subject based on the ideXlab platform.

  • technoeconomic and exergy analysis of a solar geothermal hybrid Electric Power Plant using a novel combined cycle
    Energy Conversion and Management, 2018
    Co-Authors: Nima Bonyadi, Evan Johnson, Derek K Baker
    Abstract:

    Abstract A novel Solar Geothermal Hybrid Electric Power Plant (SGHEPP) based on the hybridization of an existing binary Geothermal Electric Power Plant by adding a solar-Powered steam-Rankine topping cycle is proposed. The proposed SGHEPP has several benefits. First, the hybridization scheme does not require the binary bottoming cycle to be physically modified or operated outside its design conditions. Second, the proposed SGHEPP has a higher turbine inlet temperature, which results in higher solar-to-Electricity conversion efficiencies. Third, the daily energy production for the SGHEPP peaks on sunny summer days when Electricity prices are generally highest. And fourth, the design reduces the consumption of geothermal resources, which can extend the useful life of declining and marginal geothermal fields. Annual simulations are run for a representative Plant in southwestern Turkey and used to assess the Plant’s energetic, exergetic, and economic performance. The performance of four designs are compared that differ with respect to how the geothermal resources are managed and the size of the solar field. A representative design has an incremental solar efficiency of 12.2% and consumes up to 17% less brine than a similar stand-alone geothermal Plant. The calculated solar based LCOE for each design is in the range of 163–172 USD MWh−1.

Nima Bonyadi - One of the best experts on this subject based on the ideXlab platform.

  • technoeconomic and exergy analysis of a solar geothermal hybrid Electric Power Plant using a novel combined cycle
    Energy Conversion and Management, 2018
    Co-Authors: Nima Bonyadi, Evan Johnson, Derek K Baker
    Abstract:

    Abstract A novel Solar Geothermal Hybrid Electric Power Plant (SGHEPP) based on the hybridization of an existing binary Geothermal Electric Power Plant by adding a solar-Powered steam-Rankine topping cycle is proposed. The proposed SGHEPP has several benefits. First, the hybridization scheme does not require the binary bottoming cycle to be physically modified or operated outside its design conditions. Second, the proposed SGHEPP has a higher turbine inlet temperature, which results in higher solar-to-Electricity conversion efficiencies. Third, the daily energy production for the SGHEPP peaks on sunny summer days when Electricity prices are generally highest. And fourth, the design reduces the consumption of geothermal resources, which can extend the useful life of declining and marginal geothermal fields. Annual simulations are run for a representative Plant in southwestern Turkey and used to assess the Plant’s energetic, exergetic, and economic performance. The performance of four designs are compared that differ with respect to how the geothermal resources are managed and the size of the solar field. A representative design has an incremental solar efficiency of 12.2% and consumes up to 17% less brine than a similar stand-alone geothermal Plant. The calculated solar based LCOE for each design is in the range of 163–172 USD MWh−1.

Evan Johnson - One of the best experts on this subject based on the ideXlab platform.

  • technoeconomic and exergy analysis of a solar geothermal hybrid Electric Power Plant using a novel combined cycle
    Energy Conversion and Management, 2018
    Co-Authors: Nima Bonyadi, Evan Johnson, Derek K Baker
    Abstract:

    Abstract A novel Solar Geothermal Hybrid Electric Power Plant (SGHEPP) based on the hybridization of an existing binary Geothermal Electric Power Plant by adding a solar-Powered steam-Rankine topping cycle is proposed. The proposed SGHEPP has several benefits. First, the hybridization scheme does not require the binary bottoming cycle to be physically modified or operated outside its design conditions. Second, the proposed SGHEPP has a higher turbine inlet temperature, which results in higher solar-to-Electricity conversion efficiencies. Third, the daily energy production for the SGHEPP peaks on sunny summer days when Electricity prices are generally highest. And fourth, the design reduces the consumption of geothermal resources, which can extend the useful life of declining and marginal geothermal fields. Annual simulations are run for a representative Plant in southwestern Turkey and used to assess the Plant’s energetic, exergetic, and economic performance. The performance of four designs are compared that differ with respect to how the geothermal resources are managed and the size of the solar field. A representative design has an incremental solar efficiency of 12.2% and consumes up to 17% less brine than a similar stand-alone geothermal Plant. The calculated solar based LCOE for each design is in the range of 163–172 USD MWh−1.

Deolinda Flores - One of the best experts on this subject based on the ideXlab platform.

  • Comprehensive characterization of anthracite fly ash from a thermo-Electric Power Plant and its potential environmental impact
    International Journal of Coal Geology, 2011
    Co-Authors: Joana Ribeiro, Bruno Valentim, Colin R. Ward, Deolinda Flores
    Abstract:

    Abstract Anthracite fly ash from a deactivated Portuguese thermo-Electric Power Plant has been characterized to assess its relationship to the mineral matter in typical feed coal and the potential environmental impacts that might be caused by ash disposal. Several different aspects of the ash were characterized, including the petrographic and mineralogical composition, as well as the chemical composition of both the ash samples and their water leachates. Petrographic analysis demonstrates that the fly ash consists predominantly of glass, followed by char and crystalline mineral particles. SEM-EDX studies were used to complement this approach, revealing a mixture of different inorganic phases and unburnt organic matter. Quantitative XRD analysis further showed that amorphous material (or glass) is the main constituent (60–70%), followed by mullite, quartz, and traces of maghemite. Small proportions of kaolinite and illite also occur in some of the fly ash samples. According to their chemical composition, the fly ashes would be classified as sialic and are within the range of values shown by other European fly ash samples. Relatively low concentrations of elements in leachates from the fly ash could be due to enclosure of most of the elements within the amorphous material, together, possibly, with mobilization of some of the material (e.g. adsorbed ions) from the ashes with storage. The fly ash leachates developed very acidic pH values (between 2.5 and 2.8) under test conditions, attributed to the low-CaO content and the co-firing with fuel oil.

Daniel Yossefi - One of the best experts on this subject based on the ideXlab platform.

  • solar thermal Power Plant
    2009
    Co-Authors: Avraham Brenmiller, Michael Schaal, Daniel Yossefi
    Abstract:

    A solar thermal Power Plant is provided. The Plant includes a steam-Electric Power Plant associated with a steam generation system operationally connected thereto for providing heat to drive its operation, a solar collection system designed to heat thermal fluid and is in communication with the steam-Electric Power Plant to provide heat thereto for driving its operation, and a non-solar Power Plant including a Power generation unit and a waste heat recovery unit. The solar thermal Power Plant further includes a controller configured to selectively operationally connect the solar collection system and the waste heat recovery unit to the steam-Electric Power Plant to provide heat thereto.