Publications (357)
ARTICLE
Investigating the Effect of Inclination Angle of Magnetic Field Vector on Silicon PV Modules
Dioari Ulrich Combari , Emmanuel Wendsongré Ramde, Bruno Korgo, Ramatou Saré, Martial Zoungrana , and Issa Zerbo
In earlier studies, we have shown theoretically and experimentally that magnetic fields (MFs) have negative impact on silicon PV module (photovoltaic module). A noticeable decline in photocurrent with a slight increase in photovoltage was observed. Also, how those fields affected other key module’s parameters was also studied. These studies co(...)
Mots clés non renseignés
ARTICLE
EVAPORATION IMPROVEMENT IN NATURAL CONVECTION OF HEPTANE LIQUID DROPLET
DABILGOU Téré, DGHEIM Joseph, SANDWIDI Sayouba, DAHO Tizane, ZONGO S. Augustin, CHESNEAU Xavier, KOULIDIATI Jean, SANOGO Oumar, ZEGHMATI Belkacem and BERE Antoine (
A numerical study of the evaporation by laminar natural convection of a heptane liquid droplet is
presented. The classical boundary layer equations are used in the liquid phase and in the vapor phase.
The transfers are described by the natural convection equations. The linkage between heat and mass
transfer in the liquid and vapor phases(...)
Heat & Mass Transfer, Evaporation, Conservation equation
ARTICLE
Quadratic Boost Converter: An Analysis with Passive Components Losses
Modou Badiane, Prince Abdoul Aziz Honadia Bernard Zouma, Fabé Idrissa Barro
The Cascaded Connected Single Switch Quadratic Boost (C2S2-QB) is studied first from its ideal model, then with semi-real model taking into account resistive losses through the inductors and the capacitor. The continuous conduction mode equations, describing these different models are established, taking into account losses through passive com(...)
Quadratic Boost, Losses, Gain Factor
ARTICLE
EXPÉRIMENTATION ET ANALYSE THERMIQUE D’UN CONCENTRATEURHÉMISPHÉRIQUE STATIONNAIRE SOUS LES CONDITIONS CLIMATIQUES ÀOUGADOUGOU, BURKINA FASO
Ouédraogo Salifou, Ky Thierry S. M., Konfé Amadou, Kam Sié, Bathiébo D. Joseph
Les concentrateurs solaires constituent une technologie adaptée à l’exploitationde l’énergie solaire à haute température mais aussi à des températuresintermédiaires. Cette technologie est utilisée dans le séchage, le chauffage d’eausanitaire ou dans la production d’électricité. Cependant elle utilise un systèmede traque solaire qui est trop co(...)
Concentrateur hémisphérique, stationnaire, nergie solaire, température interieure
ARTICLE
Experimental Study of a Stationary Hot Air Solar Collector Built with Hemispherical Concentrators and Enhanced with Fresnel Lenses
Thierry S. M. Ky, Salifou Ouedraogo, Moctar Ousmane, Boureima Dianda, Emmanuel Ouedraogo and Dieudonné J. Bathiebo
Aims: This paper is about a solar collector made of hemispherical concentrators. This collector is sun tracking free, and used for natural convection. Lenses are used on top of each concentrator to improve its efficiency. Study Design: The Solar collector is made of hemispherical Concentrators with Fresnel lenses axially-centered to those conc(...)
solar bowl, spherical concentrator, Natural Convection, hot air solar collector, efficiency and Fresnel lenses, stationary tracking free permanent system
ARTICLE
Modélisation thermodynamique de combustion mono-zone de biodiesels dans un moteur Diesel et estimation théorique des émissions potentielles.
Dabilgou Téré, Sanogo Oumar, Zongo S Augustin, Daho Tizane, Zeghmati Belkacem, Chesneau Xavier, Koulidiati Jean, Béré Antoine
Dans le présent travail, un modèle thermodynamique de combustion à zone unique pour le carburant Diesel et le biodiesel a été mis en œuvre pour prédire la pression du cylindre afin de mieux comprendre la combustion caractéristique des différents carburants testés dans un moteur Diesel et d'analyser les performances caractéristiques d'un même m(...)
modélisation mono-zone, biodiesel, moteur, pression, émissions
ARTICLE
Modélisation thermodynamique de combustion mono-zone de biodiesels dans un moteur diesel et estimation théorique des émissions potentielles
Dabilgou Tere, Oumar Sanogo, Zongo Sampawindé Augustin,Tizane Daho, B. Zeghmati, Jean KOULIDIATI, Antoine Bere
Dans le présent travail, un modèle thermodynamique de combustion à zone unique pour le carburant diesel et le biodiesel a été mis en oeuvre pour prédire la pression du cylindre afin de mieux comprendre la combustion caractéristique des différents carburants testés dans un moteur diesel et d’analyser les performances caractéristiques d'un même(...)
mono-zone, biodiesel, engine, pressure, emissions
ARTICLE
DETERMINING VERTICAL WIND SPEED PROFILE IN THE ATMOSPHERIC LIMIT LAYER ON THE OUAHIGOUYA SITE IN BURKINA FASO
Drissa BORO*1, Hagninou Elagnon Venance Donnou2, Alfred BAYALA, Florent P. KIENO & Joseph BATHIEBO
The properties of the vertical profile of the wind speed on a monthly and annual scale at the Ouahigouya site
belonging to the Sahelian climatic zone in Burkina Faso were explored in this study. To do this, wind speed and
temperature data at 10 m above ground and NASA satellite data at an altitude of 50 m in the atmospheric boundary
layer w(...)
wind potential, vertical profile, Monin-Obukhov
ARTICLE
2D Modeling of Solar Cell p-n Radial Junction: Study of Photocurrent Density and Quantum Efficiency in Static Mode under Monochromatic Illumination
Raguilignaba Sam, Alain Diasso, Bernard Zouma, François
A theoretical study of a polysilicon solar cell with a radial junction in static regime under monochromatic illumination is presented in this paper. The junction radial solar cell geometry is illustrated and described. The carriers’ diffusion equation is established and solved under quasi-neutral base assumption with boundaries conditions and(...)
Grain Geometry, Photocurrent Density, Quantum Efficiency
ARTICLE
Silicon Solar Cell Space Charge Region and Capacitance Behavior under Electric Field
Bernard Zouma, Fabé Idrissa Barro, Prince Abdoul Aziz Honadia
This paper investigates theoretically the behavior of the space charge region of a silicon solar cell and its associated capacitance under the effect of an external electric field. The purpose of this work is to show that under illumination the solar cell’s space charge region width varies with both operating point and the external induced ele(...)
Solar Cell, Electric Field, Space Charge Region
ARTICLE
Experimental study on performance and combustion analysis of a diesel engine fueled with Diesel and Jatropha oil blended with heptane
Yomi Woro Gounkaou, Tizane Daho, Ali Diane, Gilles Vaitilingom, Bruno Piriou, Jeremy Valette, Oumar Sanogo, Antoine Béré
This work focuses on blending Jatropha oil with diesel fuel and heptane to improve its physico-chemical characteristics for production of blends and their use as fuel in a diesel engine. The influence of the heptane content was evaluated by comparing the results obtained from the engine (performance and combustion parameters) with those of the(...)
Diesel Engine, Jatropha Oil, Heptane, Blends, Engine Performance
ARTICLE
The Radiative Forcing of Aerosols in a West Africa Sahelian Urban City: Case Study of Ouagadougou
Bruno Korgo, Pétronille Kafando, Bernard Zouma, Nebon Bado, Issa Zerbo, Jean-Claude Roger, Joseph D. Bathiebo
This paper is an assessment of radiative forcing caused by atmospheric aerosols in an urban city in West Africa. It is carried out in Ouagadougou in Burkina Faso and is an illustration of the radiative impact in most of the large
Sahelian urban cities which are under the same climatic influences and whose populations present similarities in t(...)
Aerosols, Radiative Forcing, Scattering, Absorption, GAME Code, AERONET
ARTICLE
Effective Lifetime Experimental Measurement under External Magnetic Field in Transient Dynamic State Obtained from a Square Electrical Excitation by Open Circuit Voltage Decay Method
Nazé Yacouba Traoré, Raguilignaba Sam, Alain Diasso, Bernard Zouma, François Zougmoré
In this work, we present an experimental transient 3-Dimensionnal study for the minority charge carriers’ effective lifetime measurement under magnetic field in transient dynamic state. The magnitude of the magnetic field B is varied from 0 mT to 0.03 mT. The method used is mainly based on the open circuit voltage decay method. The solar cell(...)
Effective Lifetime, Electrical Excitation, Frequential Dynamic Regime
ARTICLE
Diurnal Variability of the Radiative Impact of Atmospheric Aerosols in Ouagadougou, Burkina Faso: A Seasonal Approach
Bruno Korgo, Bernard Zouma, Pétronille Kafando, Nebon Bado, Martial Zoungrana, Issa Zerbo, Jean-Claude Roger, Joseph D. Bathiebo
The objective of this work is to study the diurnal evolution of the radiative impact of atmospheric aerosols in an urban city located in the West African Sahel and the correlations with the main influencing factors of local climate dynamics. The simulation was performed using a treatment chain including the GAME code. In the methodology, the a(...)
AERONET, Optical Properties, Radiative Forcing, Harmattan, Monsoon, Sahara Desert
ARTICLE
P-T-X and P-T-h Diagrams of the Working Pair H 2 0/LiBr at Thermodynamic Equilibrium and Charts that Permit to Determine its Thermodynamic Properties
Yves Christian Nonguierma, Amadou Konfe and Dieudonné Joseph Bathiebo
The thermodynamic properties at equilibrium, in this case, enthalpy, pressure, temperature, mass
fraction, of working pairs are very important for researchers and in the design of absorption
refrigeration systems. Although some authors have carried out their research in this direction by
setting up empirical formulas, there are unfortunatel(...)
Thermodynamic properties; lithium bromide; absorption; diagrams