Publications (362)
ARTICLE
Uncooled PV cell under variable light concentration: Determination of profiles of the temperature, the intrinsic properties and the carrier density
Mahamadi SAVADOGO, Pegdwindé Ousséni Fabrice OUEDRAOGO, Adama OUEDRAOGO, Lamine ZIDA, Martial ZOUNGRANA, Issa ZERBO
Studies on concentrated light influence do not take into account the effect of the heating and this proves to be harmful on photovoltaic parameters. The main purpose of this work is to study the effects of light concentration and the heating caused by this concentration on intrinsic properties and carrier density profile. A thermal model of th(...)
Temperature profile, concentrated light PV cell, intrinsic density, gap energy, carriers density profile
ARTICLE
Three-Dimensional Study of the Effect of the Angle of Incidence of a Magnetic Field on the Electrical Power and Conversion Efficiency of a Polycrystalline Silicon Solar Cell under Multispectral Illumination
Idrissa Sourabié, Vinci de Dieu Bokoyo Barandja, Mahamadi Savadogo, Ramatou Konaté, Alain Doua Gnabahou, Martial Zoungrana, Issa Zerbo, Frédéric Ouattara
A three-dimensional approach to the effect of magnetic field incidence angle on electrical power and conversion efficiency is performed on a front-illuminated polycrystalline silicon bifacial solar cell. A solution of the continuity equation allowed us to present the equations of photocurrent density, photovoltage and electric power. The influ(...)
Angle of Incidence, Magnetic Field, Electric Power, Bifacial Solar Cell, Conversion Efficiency
ARTICLE
Modeling and Validation of Biogas Consumption Prediction in Cook Stove Using a Network Approach
Noufou Bagaya a∗, Issaka Ouedraogo ´ b, Winde Nongue Daniel Koumbem ´ a, Younoussa Moussa Balde´ c, Sette Diop c and Sie Kam ´ a
This study seeks to propose a new model of hearth for the consumption of biogas produced by a biodigester of 4 m−3. The cylindrical furnace is used to heat an empty pot for 3 hours. To do this, the system is subdivided into two sub-systems, the first is the flame, which heats the bottom of the pot. The latter is the second hottest point. The d(...)
Biogas; cook stove; validation; energy performance
ARTICLE
Modélisation à 3D des influences de l’intensité et de l’angle d’inclinaison d’un champ électromagnétique sur le courant et la tension d’une cellule PV au silicium polycristallin
Mamoudou Saria, Ramatou Saré, Mahamadi Savadogo, Vinci De Dieu Bokoyo Barandja, Martial Zoungrana, and Issa Zerbo
L’objectif de ce travail est d’étudier, à 3-D, les influences de l’intensité et de l’angle d’inclinaison du champ électromagnétique transporté par des ondes radio AM sur le courant et la tension d’une cellule PV.
Les équations de transport ont été résolu afin d’établir l’expression de la densité des électrons qui a permis de déduire les expre(...)
Cellule PV, ondes radio, angle d’inclinaison, effet Joule
ARTICLE
Influence of rotational temperature on emission spectra of the branches Q, P and R of the system 2Σ→ 2π of hydroxide radical OH
Samuel Ouoba, Justin Zaïda, Ouindpouiré Auguste Aristide Soré and Jean Koulidiati
The work of this paper is focused on the influence of rotational temperature on the emission spectra of the branches relatively to the head of band Q(0,0). After a description of the rotational states, we took into account the total angular momentum in the case where the electronic spin is neglected. We then determined the terms of energy and(...)
Energy Levels; Spectra; Rotational Temperature; OH-radical; Numerical Model.
ARTICLE
Renewable Energies in Africa, Context and Socio-Economic Challenge
Oubda, D., Ouédraogo, S., Diasso, A., Kébré, M.B., Zougmoré, F., Koalga, Z. and Ouattara, F.
In this paper, we have shown that Africa has an enormous wealth of renewable energy resources among the most important in the world such as the strong sunshine, Congo and Nile Rivers respectively among the most powerful and the longest in the world. We have underlined the presence of important forests, rich subsoil in mineral elements, and str(...)
Africa, Photovoltaic Solar Energy, Semiconductor, Socio- Economic, Urban Area
ARTICLE
Experimental Investigation of the Structural Coloured Reflections from Elytra of the Megacephala Regalis Citernii
Issaka Ouedraogo1, *, Wend Dolean Arsene Ilboudo1, Winde Nongue Daniel Koumbem2, Alioune Ouedraogo2
This article is devoted to the study of the structural layers origin of the mixed color blue, yellow-green and red reflections from elytra of the Megacephala Regalis Citernii, a bug species. So, we proceed by scanning electron microscope (SEM) and spectrophotometry characterization of these layers to explain the origin of the mixed color blue,(...)
Reflectance, Structural Color
ARTICLE
Numerical Study of a Cylindro-Parabolic Cooker “Blazing Tube”
Boureima Dianda, Mibienpan Ki, Wende Pouiré Germain Ouédraogo, Nébon Bado, Sikoudouin Maurice Thierry Ky, Bruno Korgo, Sié Kam, Dieudonné Joseph Bathiebo
The objective of this work is to numerically determine the thermal performance of the parabolic cylinder cooker commonly “blazing tube”. These performances were determined by establishing heat balances at the different levels of the system. The equations obtained have been discretized; simplifying assumptions have been made to facilitate their(...)
Solar Cooker, Heat Transfer Fluid, Temperature, Yield
ARTICLE
THE THERMAL COMFORT INVESTIGATION OF TWO TRADITIONAL HABITAT MODELS IN THE SUB-SAHELIAN AREA
Issaka Ouédraogo1, Windé. Nongué Daniel Koumbem2, Noufou Bagaya2 and Alioune Ouédraogo3
We show through experimental and numerical investigation of the thermal confort in the two model traditionnal habitat in subsahelian area. The first is a rectangular model from Dogon people and the second is vaul model from the Peulhs people. We found the following result in the Dogon habitat : T=24.9°C-34.8°C,RH =10-20.7%, DP=-0.5-10.7. The a(...)
Thermal Comfort, Traditional Habitat
ARTICLE
Numerical Simulation of Hygrothermomechanical Deformations of Bituminous Pavements in the City of Ouagadougou Subjected to Tropical Dry Showers
Sidpouita Mathilde Koudougou , Konfe Amadou , David Y. K. Toguyeni , Anne Pantet and Tariq Ouahbi
The waters of the torrential rains in the city of Ouagadougou lead to the appearance or amplification of damage to the surface of asphalt pavements during the rainy season. Road infrastructure maintenance campaigns follow one another almost every rainy season to fill potholes and cracks observed on the pavements. Several hypotheses can be put(...)
Pavement, hygrothermomechanical, modeling, dry tropical weather
ARTICLE
Numerical Modelling of a Parabolic Trough Concentrator for the Design of a Thermodynamic Solar Power Plant
Bouwèreou Bignan-Kagomna1, *, Issaka Ouedraogo2, Daniel Windé Nongué Koumbem1, Gado Tchabode3
The Sahel region of Burkina, whose capital is Dori, is one of the regions of the country whose electricity coverage rate is very low, which happens to be a paradox because it has enormous solar deposits which are sources of energies. This is the essence of our study of a 50MW cylindrical-parabolic concentrator solar power plant in Dori. It sho(...)
Parabolic Solar Concentrator, Therminol vp-1
ARTICLE
Analysis and Comparison of Doping Level Effects on a Crystalline Silicon PV Cell under Both Moderate Light Concentration and Normal Illumination Modes
Mahamadi Savadogo, Adama Ouedraogo, Boubacar Soro, Zi Daouda Koudougou, Martial Zoungrana, Issa Zerbo
The main purpose of this work is to study doping level effects on a silicon PV cell under both moderate light concentration and normal illumination. This study also aims to compare the doping level effects under the both illumination modes. The results show for both illumination modes that diffusion parameters decrease with increasing doping l(...)
Moderate Light Concentration, Doping Level, High Injection, Diffusion Parameters, Conversion Efficiency
ARTICLE
High Performance for Cu(In,Ga)Se2 Quaternary System-Based Solar Cells with Alternative Buffer Layers
Daouda Oubda, Marcel Bawindsom Kébré, Soumaïla Ouédraogo, Alain Diasso, François Zougmoré, Zacharie Koalga, Frédéric Ouattara
In this study, the authors investigated the performance of different buffer layers through the electrical parameters such as Jsc, Voc, QE and η of the quaternary system Cu(In,Ga)Se2 solar cells. The performance of Cu(In,Ga)Se2
solar cells has been modeled and numerically simulated by using the SCAPS-1D device simulation tool. The cells with a(...)
Thin Film Solar Cells, CIGS Absorber, Alternative Buffer Layers, SCAPS-1D, Electrical Parameters
ARTICLE
Optimization of PV/Diesel Production through Data Monitoring
Bognini Y. Lucien, Jean B. Byiringiro, Bernard Zouma, Bognini W. Abraham
The study PV/diesel system is a stand-alone microgrid powered by the PV/diesel combination without production storage. The study focused on optimising PV/diesel production by monitoring data. It also referred to a comparison of sensitive factors in PV/diesel production. This study implemented structural and non-structural factors of the said s(...)
Microgrid, Data Monitoring
ARTICLE
A review of MRI studies in Africa with special focus on quantitative MRI: Historical development, current status and the role of medical physicists
Francis Hasforda, Abdul Nashirudeen Mumuni, Christoph Trauernicht, Taofeeq Abdallah Iged, Stephen Inkooma, Mark Okeji, Eja-Egwu Uche Nathaniel, Nadia Khelassi Toutaouih, Malick Geraldoi, Konfe Amadou, Canesius Uwizeyimana, Odette Ngano Sambal, Ehab Marouf Attallam, Ejigu Kebeden, Gervais Edou-Mboo, Elly Oking Okokop, Zahra Omar Alghazirrq, Mark Pokoo-Aikinsa,r, Edem Kwabla Sosua,r, Mary Boadua,r, Oswald Mkanda Msosas, Siaka Maigat, Seeven Mootoosamyu, Lakbir El Hamidiv, Khalida Eddaouiw, ´Elio Malemax, Vera Uushonay, Idrissa Adamou Soliz, Magatte Diagneaa, Fama Gningaa, Tegemea Lawrence Kaloloab, Moses Fredrick Katumbaac, Mulape Mutule Kanduzaad, Keolathile Ditekoae, Kamanzi Jean D’Amouraf, Magdalena Stoevaag
This scoping review provides overview on the historical and major developments, current status, quantitative magnetic resonance (MR) studies and the role of medical physics bodies in MR imaging in Africa. The study analyzed MRI availability in 32 (59 %) of the 54 African countries. South Africa and Egypt have the most dominant MR systems. Numb(...)
Magnetic resonance imaging, Africa, Quantitative MR, MR system per million population, Medical physicist