Browsing by Author "Zieba Falama, R."

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    A New Analytical Modeling Method For Photovoltaic Solar Cells Based On Derivative Power Function
    (University of Eloued جامعة الوادي, 2016-05-01) Zieba Falama, R.; Dadjé, A.; Djongyang, N.; Doka, S.y.
    This paper presents a simple method of optimizing the photovoltaic (PV) generator based on the one diode electrical model. The method consists in solving a second degree equation representing the derivative of the power function. The maximum current and voltage are determined, and the maximum power is deduced. Two popular types of photovoltaic panels constructed with different materials have been considered for the test: the multi-crystalline silicon (Shell S75), and the mono-crystalline silicon (Shell SP70). For various environmental conditions, a comparative study is done between the simulated results and the product manufacturer data. The obtained results prove the efficiency of the proposed method.
  • Thumbnail Image
    Item
    A Novel Technique For Improving The Efficiency Of A Photovoltaic Silicon Solar Cell Based On The Band-trap Impact Ionization Phenomenon
    (University of Eloued جامعة الوادي, 2015-09-01) Zieba Falama, R.; Mibaile, J.; Djongyang, N.; Doka, S. Y.
    In this paper, we consider a photovoltaic silicon solar cell in which the charge carriers are moved solitary. To evaluate the number of charge carriers in the solar cell, the proposed nonlinear reaction-diffusion equation describing the phenomena of carriers transport in solar cell under the effect of band-trap impact ionization has been solved. The results from this equation are solitary solutions. The maximum efficiency of the proposed model has been evaluated for various photo-generation coefficients. The range of the external applied electric field Eo to be avoided has been carried out. The interest of the obtained results is firstly economical since it could be useful in avoiding strong and undesirable external applied electric field on solar cells. The second interest is that they permit to identify the approximate maximum efficiency value of solar cell band-trap impact ionization.