Publications (486)
ARTICLE
Performance Analysis of a Boost Converter with Components Losses
Prince Abdoul Aziz Honadia, Fabé Idrissa Barro, Moustapha Sané
A theoretical study of a conventional boost converter is presented. Based on the real behavior of the components, two models of the boost converter are introduced: one dealing only with losses through inductor and capacitor and another taking into account switching losses in addition to resistive ones. From these two models, the detailed analy(...)
Boost, Gain Factor, Efficiency
ARTICLE
Experimental study of the thermo-physical properties of lateritic blocks used in the habitat in dry tropical climate
Emmanuel Ouédraogo, Ousmane Coulibaly, B. Kossi Imbga, P. Florent Kiéno and Abdoulaye Ouédraogo ;
This article presents an experimental study on the thermo-physical characterization of local
materials used in building construction. These materials are laterite cut blocks from three different
quarries. The characterization was done with the hot plate device and the asymmetrical method
was used. All the samples studied have(...)
Laterite blocks; asymmetric hot plate model; thermal conductivity; thermal diffusivity; thermo-physical properties.
ARTICLE
Study of temperature fields and heavy metal content in the ash and flue gas about combustion of briquettes coming from paper and cardboard waste
Harouna Gado Ibrahim, Salifou K. Ouiminga, Arsène Yonli, Oumar Sanogo, Tizane Daho, Jean Koulidiati
The present study focused on the combustion of four types of briquettes made from paper and cardboard waste produced in Ouagadougou (Burkina Faso). Rotary and tubular kilns were used to study the combustion. The combustion mean temperatures, nitrogen, phosphorus and potassium (NPK) content in the ash and heavy metals content in the ash and the(...)
Briquette, ash, nitrogen-phosphorus-potassium
ARTICLE
Optical and microphysical analysis of aerosols in Sahelian Zone: Case of the Ouagadougou City in Burkina Faso
Bado Nébon, Mamadou Simina Dramé, Korgo Bruno, Kieno P. Florent, Saidou Moustapha Sall and Bathiebo Dieudonné Joseph
This paper analyzes aerosols in the Sahelian zone, particularly in Burkina Faso, based on in situ measurements of the AERONET network made from 1999 to 2006. Indeed, we characterize aerosols by studying their optical and microphysical parameters measured on the site of Ouagadougou (12.2° N, 1.4° W). Thus, several types of days were defined bas(...)
Aerosol, AERONET, HYSPLIT, Back-Trajectory, Microphysical and Optical properties, Ouagadougou
ARTICLE
Influence des aérosols sur la composition à l’équilibre d’un plasma d’air
W. C. Yaguibou, N. Kohio, A. K. Kagoné, Z. Koalaga et F. Zougmoré
La mousson et l’harmattan sont les principales dynamiques atmosphériques qui gouvernent le transport et le dépôt des aérosols en Afrique de l’Ouest. Ces aérosols proviennent du désert et des feux de biomasses et sont essentiellement composés d’oxydes de silicium, de calcium, de fer, d’aluminium et d’éléments carbonés issus de la biomasse. Ains(...)
aérosol, composition, enthalpie, plasma, arc, disjoncteur
ARTICLE
Impact of pre-treatment by torrefaction and carbonization on temperature field, energy efficiency and tar content during the gasification of cotton stalks
Harouna Gado Ibrahim, Oumar Sanogo, Salifou Koucka Ouiminga, Tizane Daho and Jean Koulidiati
The present study focused on the gasification of raw and pre-treated cotton stalks (CS) by torrefaction and carbonization. Temperature fields, mass balance, energy balance, energy efficiency and tar content of the gas were investigated for the gasification of different types of biomass materials (raw, torrefied and carbonized CS). High tempera(...)
Biomass gasification, pre-treatment, tar content
ARTICLE
THERMODYNAMIC PROPERTIES CALCULATION OF AIR – WATER VAPOR MIXTURES THERMAL PLASMAS
A. K. KAGONÉ, N. KOHIO, W. C. YAGUIBOU, Z. KOALAGA AND F. ZOUGMORÉ
Knowledge of air-water vapor mixtures thermal plasmas thermodynamic properties is important to estimate the performances of electrical arc cutting in this gas by a circuit breaker. In this paper, air-water vapor mixtures thermal plasmas thermodynamic properties are calculated in a temperature range from 5000K to 30000K. The calculations are
c(...)
Mixture; plasma composition; thermal plasma; thermodynamic properties; circuit breakers.
ARTICLE
Impact of Aerosol on Transport Coefficients of Air Thermal Plasmas in Circuit Breakers
Wêpari Charles Yaguibou(1), Niessan Kohio(1), Abdoul Karim Kagone(1) and Zacharie Koalaga(1)
In West Africa, aerosols come from the desert and biomass fires. They are mainly composed of oxides of silicon, calcium, iron, aluminium and carbon. The air circuit breakers may have abnormal behaviour and failures of cuts when they operate in an environment polluted by aerosols. This study focuses on the influence of aerosols on the transport(...)
Plasma, Equilibrium composition, Transport coefficients.
ARTICLE
Potentials of an Eco-Friendly Composite in Hot-Dry Climate
Fati Zoma, David Y.K. Toguyeni, Ousmane Coulibaly, Ivon Hassel and Abdoulaye Ouedraogo
This study aims to show the aptitude of a locally made composite for providing thermal comfort and mechanical resistance in buildings in hot-dry climates. The thermal characterization reveals that the thermal diffusivity of the studied material is lower than that of commonly used materials such as agglomerated and full cinderblocks and laterit(...)
Local composite, vibration, characterization, single-storey building envelope
ARTICLE
The Effect of Atmospheric Oxygen on the Puffing and Bursting Phenomena during Vegetable Oils Droplets Vaporization Process for Their Use as Biofuel in Diesel Engine
Zongo, A.S., Daho, T., Vaitilingom, G., Piriou, B., Valette, J., Caillol, C., Segda, B.G., Higelin, P. and Koulidiati, J
The past literature on the use of vegetable oils as fuel in diesel engine revealed that utilizing vegetable oil fuels in diesel engines may require property changes in the oil or perhaps, some minor engine modifications or operating changes. This study was conducted to search for the effect of atmospheric oxygen on the puffing and bursting phe(...)
Puffing, Bursting, Oxygen, Nitrogen, Linseed Oil, Vaporization, Engine
ARTICLE
Numerical Characterization of Cu(In,Ga)Se2 Solar Cells Using Capacitance-Voltage and Capacitance-Frequency Characteristics
Daouda Oubda, Marcel B. Kebre, Soumaïla Ouédraogo, François Zougmoré, Frédéric Ouattara, Zacharie Koalga
The paper presents the effects of buffer layer thickness, operating temperature, and series resistances on the capacitancevoltage and capacitance-frequency (C-f) characteristics of the standard ZnO/CdS/OVC/Cu(In,Ga)Se2/Mo thin film solar cells.
The numerical simulation tool used is a one dimensional program: Solar Cell Capacitance Simulator ((...)
Buffer Layer, Operating Temperature, Rs, Recombination Rate, Electrical Field Intensity, Capacitance Value.
ARTICLE
EFFECT OF INCIDENCE ANGLE VARYING FROM 0 RAD TO Π/2 RAD AND INTENSITY OF RADIO WAVES ON THE PERFORMANCE OF A SILICON SOLAR CELL
Issa Zerbo, Martial Zoungrana, Mamoudou Saria, Adama Ouedraogo, Dieudonné Joseph Bathiebo
In this work, a one dimensional approach is presented for modelling the effect of the incidence angle, varying from 0 rad to π/2 rad, and the intensity of radio waves on the performance of a polycrystalline silicon solar cell under constant multispectral illumination. By solving the continuity equation in steady state, we derived the expressio(...)
conversion efficiency, incidence angle, radio waves, shunt resistance, solar cell
ARTICLE
Experimental analysis of the operation of a solar adsorption refrigerator under Sahelian climatic conditions: case of Burkina Faso
Guy Christian Tubreoumya , Eloi Salmwendé Tiendrebeogo , Ousmane Coulibaly , Issoufou Ouarma ,Kayaba Haro , Charles Didace Konseibo 3 , Alfa Oumar Dissa , Belkacem Zeghmati
This work is an experimental analysis of the operation of a solar adsorption refrigerator designed for the conservation of pharmaceutical products. The experiment consisted to measure incident solar radiation on the collector-adsorber, temperature of all the components of the collector-adsorber, of the condenser, theeva(...)
Solar energy; Refrigeration; Adsorption; Experimentation; Zeolite / Water.
ARTICLE
Effect of Incidence Angle of Magnetic Field on the Performance of a Polycrystalline Silicon Solar Cell under Multispectral Illumination
Idrissa Sourabié, Issa Zerbo, Martial Zoungrana, Dioari Ulrich Combari, Dieudonné Joseph Bathiebo
The aim of this work is to investigate, with a three-dimensional steady-state approach, the effect of the incidence angle of a magnetic field on the performance of a polycrystalline silicon solar cell under multispectral illumination.
The magneto-transport and continuity equations of excess minority carriers are solved to find the expression(...)
Bifacial, Conversion Efficiency, Incidence Angle, Magnetic Field, Polycrystalline Silicon Solar Cell
ARTICLE
ESTIMATING HEAT AND MASS QUANTITIES TRANSFERED BETWEEN FREE SURFACE WATER AND THE ATMOSPHERE USING THE ENERGY BALANCE METHOD.
P. Florent KIENO and Alfred BAYALA.
We hereby present a study on heat and mass transfer between free surface water and the atmosphere in Burkina Faso. We preferentially chose the city of Ouagadougou to conduct this study. One of the major problems in studying evaporation is how to determine water surface temperature and the flow of water evaporated. We calculated this surface te(...)
Evaporation, Thermal transfer, energy balance