Publications (362)
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
KONFE Amadou, SAVADOGO Mahamadi, OUEDRAOGO Loukman, KAM Sié.
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
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
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 and 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 photovoltaic- thermal (CPV/T) system that enables the simultaneous p(...)
Mots clés non renseignés
ARTICLE
Impacts of the base and emitter doping rate on the internal quantum efficiency
Ramatou Konate; Bernard Zouma; Mahamadi Savadogo; Fabe Idrissa Barro; Issa Zerbo; Martial Zoungrana; Dieudonné Joseph Bathiebo
This work focused on the impacts of the base doping rate (Nb) and the emitter doping rate (Ne) on the internal
quantum efficiency (IQE) of a bifacial polycrystalline silicon solar cell, under static conditions and monochromatic
illumination. IQE is defined as the ratio of the number of electron-hole pairs or charge carriers generated to the(...)
Mots clés non renseignés
ARTICLE
Impacts of the base and emitter doping rate on the internal quantum efficiency
Ramatou Konate; Bernard Zouma ; Mahamadi Savadogo; Fabe Idrissa Barro; Issa Zerbo; Martial Zoungrana; Dieudonné Joseph Bathiebo
This work focused on the impacts of the base doping rate (Nb) and the emitter doping rate (Ne) on the internal
quantum efficiency (IQE) of a bifacial polycrystalline silicon solar cell, under static conditions and monochromatic
illumination. IQE is defined as the ratio of the number of electron-hole pairs or charge carriers generated to the(...)
Mots clés non renseignés
ARTICLE
Feasibility of Efficient Pyrolysis of Wood Chips and its Product Yield in Developing Countries
Jean Fidele Nzihou a*, Pierre Girod b , Salou Hamidou c , Yann Rogaume b , Bila Gerard Segda d and Frederic Ouattara a
This paper is about the feasibility of combustibles gases like methane, ethane and carbon monoxide
production from wood pyrolysis. This first laboratory experimental stage objective was to see what
products can be obtained from wood pyrolysis in absence of oxygen and presence of nitrogen. The
effect of temperature on the product yields w(...)
Pyrolysis; wood chips; charcoal; combustibles gases; carbon dioxide
ARTICLE
Calculation of Fluoroalkylamines Transport Coefficients Used in Agriculture and Medicine in the Context of Plasma Incineration
Ibrahim Pafadnam1,2,*, Wêpari Charles Yaguibou1, Nièssan Kohio1, Adjigkiga Banouga1, Abdoul Karim Kagoné1, Zacharie Koalaga1, Pascal André2
Knowledge of FluoroalkylAmines-air mixtures thermal plasmas transport coefficients is important for plasma performance characterization and transport phenomena modelization in the plasma. In this work, these FluoroalkylAmines-air mixture plasmas transport properties are calculated in a temperature range of 1000 K to 20 000 K at atmospheric pre(...)
fluoroalkylamines, incineration, plasma
ARTICLE
Effects of a Cyclone Dimensions on Quality of Syngas Produced with a Wood-fired Biomass Gasifier
Nzihou Jean Fidele a* , Hamidou Salou b , Segda Bila Gerard c , Ouattara Frederic a and Compaore Hamidou a
Charcoal gasification was widely used during the second World War to deal with petroleum scarcity.
When petroleum was again available after the war, gasification was neglected afterwards.
However, fossils resources are know as non-renewable and there are several reseach carried out
all over the world to develop renewable sources of energ(...)
Gasifier; syngas; wood; moisture; cyclone; design
ARTICLE
Compatibility Study between Ceramic Balls and Jatropha Curcas Oil Properties under Long Time Heat Treatment: Potentiality for Thermal Energy Storage
Boubou Bagré, Makinta Boukar, Ibrahim Kolawole Muritala, Tizane Daho, Ali Diané, Bernard Nana, Armand B. Korsaga, Oluwarotimi D. Thierry Odou, Aboubakar Gomna, & Antoine Béré
Valorisation of local and low-cost eco-materials have become an imperative for the sustainable development of Concentrating Solar Power (CSP) in West Africa. In this study, the compatibility tests were carried out. These involve the application of jatropha curcas oil (JCCO) and ceramic balls, which were developed from clay coal bottom ash and(...)
Compatibility study, ceramic balls, sustainable materials, Thermal Energy Storage, concentrating solar power
ARTICLE
Realization and Experimental Study of a Hybrid Cooker (Solar-Biomass) in a Sahelian Climate
Iliyassé Konkobo, Jacques Nébié, Yomi Woro Gounkaou, Bagré Boubou, Armand Korsaga, Boumbouté Somé, Sidiki Zongo, Christian Tubreoumya Guy, Tizane Daho, Antoine Béré
Solar cookers are devices that allow cooking by using free solar energy. However, they can’t operate during cloudy periods or at night. A hybrid cooker (solar-biomass) is an alternative that uses an endogenous and renewable energy source for ecological and economical cooking. In this work, the performances of a hybrid cooker (solar-biomass) ar(...)
Hybrid cooker, Solar energy, Biomass, Local materials
ARTICLE
Performance of a cold room powered about energy solar photovoltaic for the preservation of mangoes
Bouwèreou Bignan Kagomna 1 *, Daniel Windé Nongué Koumbem 1 , Noufou Bagaya 1 , Issa Soudre 1 , Issaka Ouedraogo 2 , Sanogo Oumar 2
This article focuses on the study of the performance of a cold room powered by photovoltaic solar energy for the preservation of agri-food products, more particularly mangoes. The objective of this work is the analysis of the thermal profiles of the cold room and the evaluation of the capacity of the latter to keep the products in good conditi(...)
Cold Room; Solar Photovoltaic; Mangoes
ARTICLE
STUDY OF NATURAL CONVECTION IN A 3D CAVITY HEATED BY THE CEILING AT A FIXED RAYLEIGH NUMBER BASED ON HEIGHT
SANEMBAYE Adrien, OUEDRAOGO Souleymane, AMADOU-OUMAROU Fati, KY Thierry Sikoudouin Maurice, KONFE Amadou and BATHIEBO Dieudonné Joseph
Our objective for this work is to study natural convection in a cavity differentially heated in 3. The equations which govern our problem are expressed in a dimensionless form with a calculation procedure based on the finite element method implemented in the COMSOL Multiphysics calculation code. The flow is unsteady turbulent flow. Several num(...)
3D natural convection, unsteady turbulent flow, finite element method, ceiling heating
ARTICLE
Structural and elastic properties of perovskite HoMnO3 crystal structures from ab-initio calculations
Joël Martial Balkoulga, Antoine Béré, Sidiki Zongo, Viwanou Hounkpati, Moussa Sougoti, Sié Zacharie Kam, Jun Chen, Pierre Ruterana
The structural and elastic properties of the oxide perovskite HoMnO3 have been investigated by density-functional theory (DFT) implemented on the Quantum ESPRESSO code for the hexagonal, orthorhombic, rhombohedral and cubic crystal structures in the non-magnetic (NM), ferromagnetic (FM) and antiferromagnetic (AFM) configurations. The results s(...)
Mots clés non renseignés