27 research outputs found

    Generating Electricity using PV/FC Hybrid System

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    A reliable electrical energy supply is a prerequisitefor improving the standard economic and quality of life levels in acountry. As is the case in many countries, it is uneconomical toconnect these villages to the existing grid, the installation of standaloneelectrical power generators has become common practice. Asa result, diesel stand-alone power generators see widespread use inthese remote locales, which, whilst fit for their intended purpose,unfortunately suffer from several drawbacks, including instabilityin regards to everyday oil prices and a number of environmentalissues. The implementation of a PV/FC hybrid power system couldbe one potential alternative to help solve these problems. Therefore,this paper presents PV/FC system control strategies. This study isespecially important in terms of envisioning the future energysupply needs. By using HOMER the proposed control strategiesand suggested components of a PV/FC system would be able toproduce a satisfactory outcome

    Measurement of ϕ\phi-meson production in Cu++Au at sNN=200\sqrt{s_{_{NN}}}=200 GeV and U++U at sNN=193\sqrt{s_{_{NN}}}=193 GeV

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    The PHENIX experiment reports systematic measurements at the Relativistic Heavy Ion Collider of ϕ\phi-meson production in asymmetric Cu++Au collisions at sNN\sqrt{s_{_{NN}}}=200 GeV and in U++U collisions at sNN\sqrt{s_{_{NN}}}=193 GeV. Measurements were performed via the ϕK+K\phi\rightarrow K^{+}K^{-} decay channel at midrapidity η<0.35|\eta|<0.35. Features of ϕ\phi-meson production measured in Cu++Cu, Cu++Au, Au++Au, and U++U collisions were found to not depend on the collision geometry, which was expected because the yields are averaged over the azimuthal angle and follow the expected scaling with nuclear-overlap size. The elliptic flow of the ϕ\phi meson in Cu++Au, Au++Au, and U++U collisions scales with second order participant eccentricity and the length scale of the nuclear overlap region (estimated with the number of participating nucleons). At moderate pTp_T, ϕ\phi-meson production measured in Cu++Au and U++U collisions is consistent with coalescence-model predictions, whereas at high pTp_T the production is in agreement with expectations for in-medium energy loss of parent partons prior to their fragmentation. The elliptic flow for ϕ\phi mesons measured in Cu++Au and U++U collisions is well described by a (2+1)D viscous-hydrodynamic model with specific-shear viscosity η/s=1/4π\eta/s=1/4\pi.Comment: 411 authors from 76 institutions, 16 pages, 12 figures, 9 tables, 2012 data. v1 is version submitted to Physical Review C. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.htm

    Electrolysis through magnetic field for future renewable energy

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    Hydrocarbon fuels are the best source of energy; however, they have some drawbacks. Because of extensive usage and replacement difficulties, it is not financially possible to entirely disregard them in the coming days. Hydrogen with Oxygen (hydroxide-HHO) gas as a fuel supplement is one possible way to reduce consumption and emissions of hydrocarbon fuels. However, the accessibility and rate of compressed hydrogen (H2) have made it challenging. Electrolysis of water, resolve numerous possible complications of using hydroxide for fuel to progress hydrocarbon burning. This research introduces a new design of electrolyzer with proper selection of electrode material and types integrated with magnetic field system, which can reduce the energy consumption. The effect of the optimum magnetic field strength was measured for this process with tap and distilled water. Two supplementary compounds, Sodium Hydroxide (NaOH) and Soda (NaHCO3), with concentration 3333ppm 1.5 litres of the electrolyte was used in this process. NaOH showed better performance and can be utilized in future development

    Performance analysis of a pv/fc hybrid system for generating electricity in Iraqs remote areas

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    A reliable electrical energy supply is a prerequisite for improving the standard economic and quality of life levels in a country. As is the case in many countries, Iraq is home to a collection of remote villages. Since it is uneconomical to connect these villages to the existing grid, the installation of standalone electrical power generators has become common practice. As a result, diesel stand-alone power generators see widespread use in these remote locales, which, whilst fit for their intended purpose, unfortunately suffer from several drawbacks, including instability in regards to everyday oil prices and a number of environmental issues. The implementation of a PV/FC hybrid power system could be one potential alternative to help solve these problems. Therefore, this paper will present PV/FC system control strategies alongside information relating to the performance of such system components, based on a case study that was conducted in Al-Gowair, Iraq. This study is especially important in terms of envisioning the future energy supply needs of Iraq. The HOMER simulation results showed that by using the proposed control strategies and suggested components of a PV/FC system, it was able to produce a satisfactory outcome
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