Publications (24)
ARTICLE
The Removal of As(III) Using a Natural Laterite Fixed-Bed Column Intercalated with Activated Carbon: Solving the Clogging Problem to Achieve Better Performanc
Régie Dimanche Ouedraogo, Corneille Bakouan, Abdoul Karim Sakira, Brahima Sorgho, Boubié Guel, Touridomon Issa Somé, Anne-Lise Hantson, Eric Ziemons, Dominique Mertens, Philippe Hubert and Jean-Michel Kauffmann
Natural laterite fixed-bed columns intercalated with two types of layers (inert materials, such as fine sand and gravel, and adsorbent materials, such as activated carbon prepared from Balanites aegyptiaca (BA-AC)) were used for As(III) removal from an aqueous solution. Investigations were carried out to solve the problem of column clogging, w(...)
laterite, balanites aegyptiaca, percolation, activated carbon, hydraulic conductivity
ARTICLE
Caractéristiques thermiques d’une argile Kaolinite stabilisée avec la gousse de Néré en vue de l’isolation thermique de l’enveloppe du bâtiment dans la zone sahélienne
B. Kossi IMBGA, Brahima SORGHO, Boureima KABORE, Vincent SAMBOU
Dans ce travail, nous avons caractérisé une argile de Karpala qui présente les mêmes caractéristiques que les argiles rencontrées en Afrique subsaharienne. Cette caractérisation s’inscrit dans le cadre d’apporter une explication à l’usage du composé végétal dans les matériaux locaux de construction. La gousse de Parkia Biglobosa (Néré) qui est(...)
Isolation thermique, Plan Chaud asymétrique, Conductivité thermique, Gousse de néré
ARTICLE
Preparation and characterization of foamed concrete using a foaming agent and local mineral resources from Burkina Faso.
Alassane Compaoré, Moustapha Sawadogo, Youssouf Sawadogo, Moussa Ouedraogo, Brahima Sorgho, Mohamed Seynou, Philippe Blanchart, Lamine Zerbo,
The paper describes lightweight-foamed concretes (LFC) that were formulated from cement, natural sand, and
foam from a foaming agent with densities of 600 and 700 kg/m3. The identified mineral phases in the cement are
alite, belite, Celite, ferrite, calcite, and gypsum. The obtained foamed concretes have a porosity varying from
29.17 to 37.(...)
Foamed concretes, Thermal conductivity, Porosity, Foaming agent, Mechanical strength
ARTICLE
Optimization of Mo/Cu(In, Ga)Se2/CdS/ZnO Hetero-Junction Solar Cell Performance by Numerical Simulation with SCAPS-1D.
Adama Zongo, Daouda Oubda, Soumaïla Ouédraogo, Marcel Bawindsom Kébré, Alain Diasso, Issiaka Sankara, Boureima Traore, François Zougmoré, Zacharie Koalga and Frédéric Ouattara
The paper presents a one-dimensional simulation study of chalcopyrite Cu(In,Ga)Se2 (CIGS) solar cells, where the effects
of the variation of CIGS, CdS, and ZnO layers are presented. Additionlly the influence of the variation of doping and the defects
density of shallow uniform donors and acceptors types are also presented. The analyse of the(...)
Numerical simulation, CAPS-1D, CIGS solar cell, shallow uniform donors and acceptors defect density
ARTICLE
High Performance for Cu(In,Ga)Se2 Quaternary System-Based Solar Cells with Alternative Buffer Layers
Oubda, D., Kébré, M.B., Ouédraogo, S., Diasso, A., Zougmoré, F., Koalga, Z. and Ouattara, F.
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)Se2solar 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
ARTICLE
Characterization of Thermal and Mechanical Properties of Red Clay Mixed with Rice Straw for Thermal Insulation of Buildings
Bouto Kossi Imbga1, 2, Emmanouel Ouedraogo2, 3, *, Alfred Bayala2, Hamado Ouedraogo1, Frederic Ouattara1, Florent Kieno2
This article presents an experimental study on the determination of the characteristics of local materials used for the construction of building walls. The use of these materials makes it possible to solve two major problems in the building sector, namely the reduction of the cost of constrictions and the reduction of carbon dioxide (CO2) emis(...)
Clay, Straw, Stabilisation, Strength
ARTICLE
Caractérisation des paramètres physico-chimiques du sol de la zone rizicole de Saga (Niamey) dans la vallée du fleuve Niger.
Seydou TAHIROU, Patrice ZERBO, Sadia OUATTARA, Yacouba SANOU, Maman Nassirou ADO
La présente étude a pour objectif de contribuer à la connaissance les propriétés physico-chimiques qui caractérisent la couche superficielle du sol dans la zone rizicole de Saga.La méthodologie adoptée pour conduire l’étude a combiné les enquêtes de terrain pour effectuer un échantillonnage et les travaux au laboratoire. Des échantillons de so(...)
Mots clés non renseignés
ARTICLE
Optimization of Contents of Three Raw Clay Materials in Formulation of a Porcelain
Youssouf Sawadogo, Moustapha Sawadogo, Moussa Ouédraogo, Mohamed Seynou, Gisèle Lecomte-Nana, Philippe Blanchart , Moussa Gomina, Lamine Zerbo,
Formulation of traditional hard porcelain generally requires 50% kaolin, 25% silica and 25% feldspar. Four porcelains formulation using the casting me thod, were prepared with different percentages of kaolinitic clay, sand and Pegmatite referenced respectively NONG, SAB and PEG. The physico-chemical, mechanical and mineralogical characteristic(...)
Raw Minerals, Porcelain, Characterization, Chemical Durability, Phase Transformations
ARTICLE
Development and Characterization of Geopolymers Based on a Kaolinitic Clay
Soungalo Ouattara, Brahima Sorgho, Moustapha Sawadogo, Youssouf Sawadogo, Mohamed Seynou, Philippe Blanchart, Moussa Gomina, Lamine Zerbo
Geopolymers today constitute an alternative to be considered with the aim, not of completely replacing cement, but of widening the possibilities available at the time of decision-making because this type of clay-based binder has a low impact environmental and thermal compared to Portland cement. The methods used to obtain eco-friendly building(...)
Clay, Development, Geopolymer, Characterization, Construction
ARTICLE
Optimization of Mo/Cu(In, Ga)Se2/CdS/ZnO Hetero-Junction Solar Cell Performance by Numerical Simulation with SCAPS-1D
Adama Zongo, Daouda Oubda, Soumaïla Ouédraogo, Marcel Bawindsom Kébré, Alain Diasso, Issiaka Sankara, Boureima Traore, François Zougmoré, Zacharie Koalga and Frédéric Ouattara
The paper presents a one-dimensional simulation study of chalcopyrite Cu(In,Ga)Se2 (CIGS) solar cells, where the effects of the variation of CIGS, CdS, and ZnO layers are presented. Additionlly the influence of the variation of doping and the defects density of shallow uniform donors and acceptors types are also presented. The analyse of the s(...)
Numerical simulation, SCAPS-1D, CIGS solar cell
ARTICLE
Assessment of different sands potentiality to formulate an effective thermal energy storage material (TESM)
Bagré Boubou , Muritala Ibrahim Kolawole, Boukar Makinta, Daho Tizane, Nebié Jacques,Rabani Adamou, Béré Antoine
This paper presents a review of solid particles size effect on thermocline storage performance for Concentrating Solar Power (CSP) storage systems. After an overview on the different process to store thermal energy we found that a particle size of 2cm diameter is better to achieve a good sensible heat storage performance within a system call d(...)
Dual medium thermocline, thermalstability, Concentrated Solar Power, Storageeffectiveness, Sand
ARTICLE
Propriétés mécanique, hydrique et thermique de briques en terre crue amendées aux coques d’arachide
Ouanmini Bobet, Mohamed Seynou, Lamine Zerbo, Halidou Bamogo, Issiaka Sanou, Moustapha Sawadogo
Des briques de terre crue élaborées à base d’une argile locale ont été amendées aux coques d’arachide pour améliorer leur performance mécanique et leur durabilité. Les coques d’arachide ont été découpées à trois longueurs respectives de 0,33 cm, 1cm et 3cm et ajoutées à la matrice argileuse à des teneurs allant de 1,8 à 3 % en masse. Les briqu(...)
adobe, coques d’arachide, résistance mécanique, conductivité thermique, érosion
ARTICLE
Comprehensive Analysis of CuIn1-xGaxSe2 Based Solar Cells with Zn1-yMgyO Buffer Layer
Ouédraogo, S. , Kébré, M. , Ngoupo, A. , Oubda, D. and Zougmoré, F.
The development of cadmium-free CIGS solar cells with high conversion efficiency is crucial due to the toxicity of cadmium. Zinc-based buffer layers seem to be the most promising. In this paper, a numerical analysis using SCAPS-1D software was used to explore the Zn(Mg,O) layer as an alternative to the toxic CdS layer. The effect of several pr(...)
Device Modeling, Zn(Mg, O), Cu(In, Ga)Se2, Interface Sates
ARTICLE
Performance Enhancement Strategy of Ultra-Thin CIGS Solar Cells
Ouédraogo, S., Traoré, B., Kébré, M. B., Oubda, D., Zongo, A., Sankara, I. & Zougmoré, F.
In this article, numerical modeling and simulation using SCAPS-1D software has been used to explore the performance of CIGS-based solar cells when some parameters are modified. Starting from a baseline model that rigorously reproduces the experimental results, the absorber properties such as defect density, band-gap and acceptor concentration(...)
Cu(In, Ga)Se2, Band-Gap, Defect Density
ARTICLE
Hydromechanical Behavior of Low-Swelling Soils Compacted at Low Water Content: Laboratory Study
Gandema, S., Kebré, M.B. & Naon, B.
Fine unsaturated soils are used in many applications, particularly in road infrastructure and in construction. These materials undergo deformations according to the stresses to which they are subjected. The purpose of this paper is to study the influence of hydromechanical stresses on the behavior of low swelling soils compacted at low water c(...)
Unsaturated Soil, Compacted, Swelling, Low Water Content, Wetting, Oedometer