American Journal of Energy Engineering

Archive

Volume 6, Issue 4, December 2018

  • Study of the Influence of the Content of a Potassium Fluoride Layer on the Capacitance and Conductance of a CIGS Thin-Film Solar Cell

    Djimba Niane, Ousmane Diagne, Demba Diallo, Gerome Sambou, Moustapha Dieng

    Issue: Volume 6, Issue 4, December 2018
    Pages: 38-43
    Received: 27 October 2018
    Accepted: 15 November 2018
    Published: 20 December 2018
    DOI: 10.11648/j.ajee.20180604.11
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    Abstract: In this paper, a study by simulation of the capacitance and conductance of carriers of a heterojunction composed of a layer of Zinc oxide (ZnO), a layer of cadmium sulphide (CdS) and a layer of CIGS under the influence of a potassium fluoride (KF) layer placed in the CIGS / CdS interface is made. The simulation done with the SCAPS-1D software. Meas... Show More
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  • Comparison of GA and PS Optimization Mechanisms for Optimizing 100MW Delta IV Ughelli Gas Turbine Power Plant Operating Parameters

    Ugwuoke Philip Emeka

    Issue: Volume 6, Issue 4, December 2018
    Pages: 44-49
    Received: 9 November 2018
    Accepted: 10 December 2018
    Published: 16 January 2019
    DOI: 10.11648/j.ajee.20180604.12
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    Abstract: A comparative analysis for improving the efficiency of 100MW Delta IV Ughelli gas turbine power plant is performed. The study used non-dominated sorting genetic and pattern search algorithms to minimize the objective function by optimally adjusting the operating parameters (decision variables). The adjusted operating variables were compressor inlet... Show More
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  • Study of the Diffusion Capacity of a CIGS-based Solar Cell in Dynamic Frequency Regime Under Monochromatic Illumination: Effect of Incidence Angle and Gallium Doping Rate

    Gérome Sambou, Amadou Diao, Jean Jude Domingo, Djimba Niane, Moustapha Dieng

    Issue: Volume 6, Issue 4, December 2018
    Pages: 50-56
    Received: 5 December 2018
    Accepted: 2 January 2019
    Published: 28 January 2019
    DOI: 10.11648/j.ajee.20180604.13
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    Abstract: In this paper a study in dynamic frequency regime under monochromatic illumination was made on a CIGS-based solar cell model. After solving the continuity equation of the minority carriers, equation governing the diffusion capacitance of the solar cell are extracted. The study shows that increasing the wavelength in the visible increases the module... Show More
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