Publications (540)
ARTICLE
H i kinematics and mass distribution of Messier 33
S Zacharie Kam, Claude Carignan, Laurent Chemin, Tyler Foster, Ed Elson, Tom H Jarrett
A new deep H i survey of the galaxy Messier 33 is presented, based on observations obtained at the Dominion Radio Astrophysical Observatory. We observe a perturbed outer gas distribution and kinematics in M33, and confirm the disk warping as a significant twist of the major axis of the velocity field, although no strong tilt is measured, in ag(...)
M33, kinematics and dynamics, Local Group, interferometry
ARTICLE
EFFECT OF LIGHT INTENSITY ON THE PERFORMANCE OF SILICON SOLAR CELL
MARTIAL ZOUNGRANA, ISSA ZERBO, MAHAMADI SAVADOGO, SANNA TIEDREBEOGO, BOUBACAR SORO AND DIEUDONNÉ JOSEPH BATHIEBO
This work, presents the intense light effect on electrical parameters of silicon solar such as short circuit current, open
circuit voltage, series and shunt resistances, maximum power, conversion efficiency, fill factor. After the resolution of
the continuity equation which leads to the solar cell photocurrent and photovoltage expressions, w(...)
Light concentration, series resistance, shunt resistance, electric power, fill factor, Conversion efficiency
ARTICLE
THE EFFECT OF MAGNETIC FIELD ON THE EFFICIENCY OF A SILICON SOLAR CELL UNDER AN INTENSE LIGHT CONCENTRATION
Martial Zoungrana, Issa Zerbo, Boubacar Soro, Mahamadi Savadogo, Sanna Tiedrebeogo, Dieudonné Joseph Bathiebo
This work put in evidence, magnetic field effect the electrical parameters of a silicon solar cell illuminated by an intense light concentration: external load electric power, conversion efficiency, fill factor, external optimal charge load. Due to the high photogeneration of a carrier in intense light illumination mode, in addition of magneti(...)
conversion efficiency, electric power, fill factor, light concentration, magnetic field, optimal charge load
ARTICLE
EFFECT OF JUNCTION QUALITY ON THE PERFORMANCE OF A SILICON SOLAR CELL
I. Zerbo, M. Zoungrana, A. Ouedraogo and D. J. Bathiebo
In this work, a modeling study of the effect of the junction quality on the performance of a silicon solar cell is presented. Based on a one dimensional modeling of the solar cell, the continuity equation of excess minority carriers is solved with boundary conditions taking into account the intrinsic junction recombination velocity and led to(...)
Mots clés non renseignés
ARTICLE
DIRICHLET’S PROBLEM ON A CRACKED TRAPEZIUM
OUIGOU MICHEL ZONGO, SIÉ KAM, MOUSSA SOUGOTI, SOSTHÈNE TASSEMBEDO, KOUNHINIR SOMÉ, ALIOUNE OUÉDRAOGO, DIEUDONNÉ JOSEPH BATHIÉBO
This paper deals with solving Poisson’s equation with conditions on Dirichlet’s limits in an isosceles trapezium with two cracks. The large singular finite elements method used gives satisfactory results in all the domain of study. Numerical values obtained are very accurate for the constraint function and its first derivatives except at the e(...)
Large elements, finite elements, singularities, cracks.
ARTICLE
Calcul de la composition chimique dans un plasma issu de mélanges de PTFE, d’air, de cuivre et de vapeur d’eau dans le cadre d’appareillages de coupure électrique à air
Pascal André (1), Marie-Agnès Courty(2), Abdoul K. Kagoné(3), Zacharie Koalaga(3), Niessan Kohio(3), François Zougmoré (3)
Le climat des zones sub-sahariennes est marqué par une forte variabilité du taux d’humidité dans l’air, surtout entre la saison sèche et la période de mousson, et par un
empoussièrement atmosphérique élevé lors des tempêtes de poussières et de vents de sable. Sous ces conditions, les appareillages de coupure de type disjoncteur à air en conta(...)
composition chimique, multiphases, enthalpie libre, plasmas thermiques, arc électrique, disjoncteur à air, polytétrafluoroéthylène
ARTICLE
VizieR Online Data Catalog: Rotational velocities of M33 (Kam+, 2017)
Sié Kam, C. Carignan, L. Chemin, T. Foster, Edward C. Elson, T. H. Jarrett
The primary observations for this study were made with the Synthesis Telescope (ST) at the Dominion Radio Astrophysical Observatory (DRAO). This telescope is an east-west interferometer consisting of seven dishes (~9m diameter) spaced variously across a baseline range of 13-617m. At 1420MHz, the longest baseline achieves a synthesized half-pow(...)
Physics, Rotational dynamics, Computer science, Astronomy, Geodesy, Geography
ARTICLE
Performance of conversion efficiency of a bifacial silicon solar cell with particle irradiation
GÖKHAN SAHIN, FABÉ IDRISSA BARRO, MOUSTAPHA SANE, PRINCE ABDOUL AZIZ HONADIA, ADEM KOCYIGIT, GENBER KERIMLI.
This paper investigates theoretically the performance of conversion efficiency of a bifacial silicon solar cell with particle irradiation. The bifaciality coefficient and the conversion efficiency are calculated for various rear side illumination conditions and electron fluence, taking into account the diffusion length related damage coefficient. The(...)
Bifaciality Conversion efficiency Solar cell Irradiation Fluence
ARTICLE
Forecasted Changes in West Africa Photovoltaic Energy Output by 2045
Serge Dimitri Yikwe Buri Bazyomo , Emmanuel Agnidé Lawin , Ousmane Coulibaly and Abdoulaye Ouedraogo
The impacts of climate change on photovoltaic (PV) output in the fifteen countries of the Economic Community of West African States (ECOWAS) was analyzed in this paper. Using a set of eight climate models, the trends of solar radiation and temperature between 2006–2100 were examined. Assuming a lifetime of 40 years, the future changes of photov(...)
climate model; solar radiation; ambient air temperature changes; solar photovoltaic energy output; ECOWAS
ARTICLE
External Magnetic Field Effect on Bifacial Silicon Solar Cell’s Electrical Parameters
Issa Zerbo, Martial Zoungrana, Idrissa Sourabié, Adama Ouedraogo, Bernard Zouma, Dieudonné Joseph Bathiebo
The aim of this work is to present a theoretical study of external magnetic field effect on a bifacial silicon solar cell’s electrical parameters (peak power, fill factor and load resistance) using the J-V and P-V characteristics. After the resolution of the magneto transport equation and continuity equation of excess minority carriers in the(...)
Bifacial Silicon Solar Cell, Fill Factor, Load Resistance, Magnetic Field, Peak Power
ARTICLE
A study of a solar air collector with a mixed ‘‘porous” and ‘‘non-porous” composite absorber
A.O. Dissa, S. Ouoba, D. Bathiebo b, J. Koulidiati
In this work, a solar air collector with a composite absorber is designed and experimented. Its composite absorber results from the coupling of a non-porous absorber made of a corrugated iron sheet and a porous absorber made of a mesh of aluminum. The prototype collector was modeled in unsteady-state by considering heat capacity effects in its(...)
Solar air collector, Porous and non-porous absorbers, Unsteady state, Quasi-steady state, Modeling
ARTICLE
Broadband noise reduction by circular multi-cavity mufflers operating in multimodal propagation conditions
B. Ouédraogo, R. Maréchal, J.-M. Ville, E. Perrey-Debain
In this study, sound propagation through a circular duct with non-locally lining is investigated both numerically and experimentally. The liner concept is based on perforated screens backed by air cavities. Dimensions of the cavity are chosen to be of the order or bigger than the wavelength so acoustic waves within the liner can propagate para(...)
Broadband noise, Muffler, No locally reacting liner, Scattering matrix
ARTICLE
Correlation of Global Solar Radiation of Eight Synoptic Stations in Burkina Faso Based on Linear and Multiple Linear Regression Methods
Ousmane Coulibaly and Abdoulaye Ouedraogo
We utilize the multiple linear regression method to analyse meteorological data for eight cities in Burkina Faso. A correlation between the monthly mean daily global solar radiation on a horizontal surface and five meteorological and geographical parameters,which are the mean daily extraterrestrial solar radiation intensity, the average daily(...)
Global solar radiation, linear and multiple linear regression, correlation, synoptics station, meteorological data
ARTICLE
Determining the potential field within a square transformer
Ouigou M. Zongo, Sié Kam, Tassembedo Sosthène, Kounhinir Some, Kalifa Palm, Alioune Ouedraogo
This paper deals with determining a field of stationary potential in a transformer with square plane section, with a side measuring 4 and divided at the center by a square which side measures 2. The problem consists in solving a Laplace equation with conditions on Dirichlet’s boundaries that we solve using the method of large singular finite e(...)
potential field, large elements, finite elements, singularities.
ARTICLE
Influence of Construction Materials and Building Orientation on Building Thermal Load in Hot and Dry Tropical Climate
Ousmane Coulibaly , Frederic Kuznik , Dominique Baillis and Abdoulaye Ouedraogo
Abstract: This paper is concerned with the determination of the thermal energy performances of individual houses built with “H” shape bricks in hot and dry tropical climate (different cities of Burkina Faso and the city of Bamako in Mali). The bricks’ matrices include three void spaces which are filled during construction with eithe(...)
“H” shape bricks’, clay-grass bricks, clay bricks