Publications (358)
ARTICLE
Evaluation of Water Losses by Evaporation in the Nakanbe Basin
Bayala Alfred, Kabre Sayouba, Yonli Hamma Fabien, Chesneau Xavier, Thierry Sikoudouin Maurice Ky, Zeghmati Belkacem, Kieno P. Florent, Kam Sié
A numerical approach to heat and mass transfer in a large water reservoir is
presented. This water reservoir is likened to a parallelepiped reservoir whose
vertical and lower walls are adiabatic and impermeable. The equations that
govern natural convection in water are solved by the finite volume method
and Thomas’salgorithm. The adequacy(...)
Numerical Study, Evaporation, Meteorological Data, Natural Convection, Ba- sins
COMMUNICATION
Evaluation des pertes d'eau par évaporation des retenues d'eau au Burkina Faso. Quelles stratégies d'adaptation ?
BAYALA Alfred, BADO Nébon, BORO Drissa, IMBGA Kossi,KY Thierry Sikoudouin Maurice, KIENO P. Florent
Une approche numérique des transferts de chaleur et de masse dans une retenue d’eau de grande dimension est présentée. Cette retenue d'eau est assimilée à un réservoir parallélépipédique dont les parois verticales et inférieures sont adiabatiques et imperméables. Les équations qui régissent la convection naturelle dans l'eau sont résolues par(...)
Mots clés non renseignés
ARTICLE
Analysis and simulation of six solar power plants seasonal production in Senegal, West Africa
Serigne Abdoul Aziz Niang, Mamadou Simina Drame, Ahmed Gueye, Astou Sarr, Mame Diarra Toure, Bado Nebon, Seydina Oumar Ndiaye, Demba Ndao Niang, Alle Dioum, Kharouna Talla
This study aims to evaluate the seasonal performance of six solar power plants in Senegal. Four of them, located in Bokhol, Sakal, Malicounda, and Kahone, have photovoltaic panels with a capacity of 20 MW, while the remaining two plants in TenMerina and Mekhe have panels with a capacity of 30 MW. To achieve this goal, the study real production(...)
Solar power plants, Production, Simulation, Software
ARTICLE
EXPERIMENTAL STUDY OF NATURAL CONVECTION IN A SOLAR CHIMNEY WITH HYPERBOLIC COLLECTOR
Moctar Ousmane, Thierry Sikoudouin Maurice KY, Boureima Kaboré, B. Magloire Pakouzou, Salifou Ouédraogo, Germain Wende Pouiré Ouedraogo, Dianda Boureima, Kam Sié and Dieudonné Joseph Bathiébo
The solar tower consisting of the chimney, the turbine, and the collector, initiated by Jörg Schlaich, is an electrical energy production system. This work aims to understand the phenomenon of natural air convection in the device as a function of solar radiation. A prototype designed at the L.E.T.RE laboratory made it possible to experimentall(...)
Solar Tower, Natural Convection, Hyperbolic Collector, Experimental Study
COMMUNICATION
Résistivité électromagnétique d’une cellule PV au silicium cristallin
OUEDRAOGO Adama
The present paper provides a study about the electromagnetic field resistivity of a crystalline silicon photovoltaic (PV) cell. The novelty of this study is found in the identification of a better doping rates range where a crystalline silicon PV cell can resist well against the deterioration of its performances. After the fundamental equation(...)
Crystalline Silicon, PV cell, Absorption process, Thermodynamic process, Fill factor, Electromagnetic resistivity
COMMUNICATION
Évaluation des pertes d’eau par évaporation et impact du changement climatique sur les retenus d’eau :
BAYALA Alfred , KONFE Amadou, CHESNEAU Xavier,ZEGHMATI Belkacem ,KIENO P. Florent, BATHIEBO Joseph
Une étude numérique des transferts de chaleur et de masse dans une retenue d’eau de
grande dimension est présentée. Cette retenue d'eau est assimilée à un réservoir
parallélépipédique dont les parois verticales et inférieures sont adiabatiques et imperméables.
Les équations qui régissent la convection naturelle dans l'eau sont résolues par(...)
Étude numérique, Évaporation, données météorologiques, Convection naturelle, Bassins
ARTICLE
Study of the Impact of the Magnetic Field on the Electrical Parameters of the Radial Junction Photovoltaic Cell under Monochromatic Illumination
Cyrile Constant Moyenga, Bernard Zouma, Ramatou Konate, Aboubacar Savadogo, Bruno Korgoa and Sié Kam
The present work is a theoretical study of the radial junction photovoltaic cell subjected to a magnetic field under monochromatic illumination. From a three-dimensional description, new analytical expressions of photocurrent density, photovoltage and electric power as a function of the magnetic field are established and by simulation on the M(...)
Mots clés non renseignés
ARTICLE
Thermal and Dynamic Study of Convection-Radiation Coupling in a Closed Enclosure
Sanembaye Adrien, Konfé Amadou, Toussakoe Karim, KY Thierry Sikoudouin Maurice and Bathiebo Dieudonné Joseph
In this work, we present a two-dimensional study of natural convection in a square air-filled cavity whose two vertical sides are subjected to a temperature difference, while the other two horizontal ones are adiabatic. The numerical method used is that of finite elements used in the COMSOL calculation code. We first studied pure natural conve(...)
Natural convection, square cavity, convection-radiation coupling, numerical simulation
ARTICLE
Assessing the Efficiency of the Zagtouli Solar Plant: A Large-Scale Grid-Connected PV System in Burkina Faso
Abdoulaye Kaboré, Samuel Ouoba, Kayaba Haro, Tongonmanegde Leonard Ouedraogo, Boubou Bagré, Bowendkuni Armand Korsaga, Antoine Béré
This paper presents an evaluation and analysis of the energy performance of a 33.7 MWp solar photovoltaic plant. Monitoring data for 36 months (January 2019-December 2021) have been used to evaluate the performance of the power plant according to the IEC 61724 standard. Normalized parameters that are (i) performance ratio, (ii) reference yield(...)
Performance analysis, Grid-connected, Normalized yields, Sudano-sahelian zone
ARTICLE
Updated Observing Scenarios and Multimessenger Implications for the International Gravitational-wave Networks O4 and O5
R. Weizmann Kiendrebeogo, Amanda M. Farah, Emily M. Foley, Abigail Gray , Nina Kunert, Anna Puecher, Andrew Toivonen, R. Oliver VandenBerg, Shreya Anand, Tomás Ahumada, Viraj Karambelkar, Michael W. Coughlin , Tim Dietrich, S. Zacharie Kam , Peter T. H. Pang , Leo P. Singer , and Niharika Sravan
An advanced LIGO and Virgo’s third observing run brought another binary neutron star merger (BNS) and the first
neutron-star black hole mergers. While no confirmed kilonovae were identified in conjunction with any of these
events, continued improvements of analyses surrounding GW170817 allow us to project constraints on the Hubble
Constant(...)
Gravitational wave sources, Gravitational wave astronomy, High energy astrophysics, Hubble constant, Astrophysical black holes, Neutron stars, Gravitational waves, Cosmology
ARTICLE
Assessment of carbon dioxide emission factors from power generation in Burkina Faso
Bernard Nana, Hamadi Zalle, Issoufou Ouarma, Tizane Daho , Arsène Yonli, Antoine Bere
Power generation is the second largest source of greenhouse gases (GHGs), particularly carbon dioxide (CO2), in Burkina Faso's energy sector. When preparing the National Communications on Climate Change, Burkina Faso uses the default emission factors of the Intergovernmental Panel on Climate Change (IPCC) to estimate emissions from power gener(...)
power generation, greenhouse gases, emission factor, carbon dioxide, thermal generation
ARTICLE
Establishment of a model for the calculation of the COP of a solar adsorption refrigerator
KONFE Amadou, NANA G Gilbert, OUEDRAOGO Salif, KAM Sié
This paper deals with the evaluation of the Coefficient of Performance (COP)
of solar adsorption refrigeration. In the literature, simulation models to predict
the thermal behaviour and the coefficient of performance of these systems
are uncommon. This is why we suggest a model to simulate the operation
of the machine in a typical hot and(...)
Solar, Refrigeration, Adsorption, Coefficient of Performance, Modelling
ARTICLE
Perte de masse des étoiles évoluées via des observations avec SPHERE au VLT Perte de masse des étoiles évoluées via des observations avec SPHERE au VLT
N. Aymard. Badolo, S. Zacharie Kam, Eric Lagadec, Vincent Hocde, Fabrice Bado, Jean Koulidiati
Les étoiles branche asymptotique des géantes (AGB) perdent une énorme quantité de matière d’une manière peu comprise à ce jour. Nous avons voulu mieux comprendre les mécanismes auteurs de la diminution considérable de la masse des étoiles pouvant avoisiner les trois quarts de la masse initiale de l’étoile. Nous avons étudié les spectres IRAS(...)
Étoiles évoluées, perte de masse, polarisation, SPHERE, DUSTY
ARTICLE
Assessment of the thermal efficiency of a concentrated photovoltaic/thermal (CPV/T) hybrid system with water as heat transfer fluid,
KONFE Amadou, KORGHO Bruno, Nana G. Gilbert, BAGBILA Eloi, AMADOU Oumarou Fati, KAM Sié
Interest in solar energy is growing by the day, because it is clean and unlimited. Concentrated
photovoltaic-thermal (CPV/T) systems are one of the systems that are attracting a great deal of
attention among solar energy systems. In this work, a study of a hybrid concentrated photovoltaicthermal
(CPV/T) system that enables the simultaneous(...)
Numerical, concentration, PV, cell, thermal, hybrid, efficiency
ARTICLE
Thermal Study and Modeling of the Cold Room of a Solar Adsoption Refrigerator
Amadou Konfe, Mahamadi Savadogo, Loukman Ouedraogo, Ousmane Moctar, Sié Kam
In this work, we are interested in the study of the thermal exchanges which
take place at the evaporator of an adsorption refrigerator. Due to the cost of
designing experimental devices and the impossibility of studying the influence
of certain parameters experimentally, an alternative would be simulation.
The aim is to provide a model for(...)
Thermal, Evaporating, Adsorption, Cooling, Modeling