Publications (365)
ARTICLE
High Performance for Cu(In,Ga)Se2 Quaternary System-Based Solar Cells with Alternative Buffer Layers
Daouda Oubda, Marcel Bawindsom Kébré, Soumaïla Ouédraogo, Alain Diasso, François Zougmoré, Zacharie Koalga, Frédéric Ouattara
In this study, the authors investigated the performance of different buffer layers through the electrical parameters such as Jsc, Voc, QE and η of the quaternary system Cu(In,Ga)Se2 solar cells. The performance of Cu(In,Ga)Se2
solar cells has been modeled and numerically simulated by using the SCAPS-1D device simulation tool. The cells with a(...)
Thin Film Solar Cells, CIGS Absorber, Alternative Buffer Layers, SCAPS-1D, Electrical Parameters
ARTICLE
Optimization of PV/Diesel Production through Data Monitoring
Bognini Y. Lucien, Jean B. Byiringiro, Bernard Zouma, Bognini W. Abraham
The study PV/diesel system is a stand-alone microgrid powered by the PV/diesel combination without production storage. The study focused on optimising PV/diesel production by monitoring data. It also referred to a comparison of sensitive factors in PV/diesel production. This study implemented structural and non-structural factors of the said s(...)
Microgrid, Data Monitoring
ARTICLE
A review of MRI studies in Africa with special focus on quantitative MRI: Historical development, current status and the role of medical physicists
Francis Hasforda, Abdul Nashirudeen Mumuni, Christoph Trauernicht, Taofeeq Abdallah Iged, Stephen Inkooma, Mark Okeji, Eja-Egwu Uche Nathaniel, Nadia Khelassi Toutaouih, Malick Geraldoi, Konfe Amadou, Canesius Uwizeyimana, Odette Ngano Sambal, Ehab Marouf Attallam, Ejigu Kebeden, Gervais Edou-Mboo, Elly Oking Okokop, Zahra Omar Alghazirrq, Mark Pokoo-Aikinsa,r, Edem Kwabla Sosua,r, Mary Boadua,r, Oswald Mkanda Msosas, Siaka Maigat, Seeven Mootoosamyu, Lakbir El Hamidiv, Khalida Eddaouiw, ´Elio Malemax, Vera Uushonay, Idrissa Adamou Soliz, Magatte Diagneaa, Fama Gningaa, Tegemea Lawrence Kaloloab, Moses Fredrick Katumbaac, Mulape Mutule Kanduzaad, Keolathile Ditekoae, Kamanzi Jean D’Amouraf, Magdalena Stoevaag
This scoping review provides overview on the historical and major developments, current status, quantitative magnetic resonance (MR) studies and the role of medical physics bodies in MR imaging in Africa. The study analyzed MRI availability in 32 (59 %) of the 54 African countries. South Africa and Egypt have the most dominant MR systems. Numb(...)
Magnetic resonance imaging, Africa, Quantitative MR, MR system per million population, Medical physicist
ARTICLE
Validation of Global Solar Radiation Models on a Horizontal Surface in the Climatic Zones of Burkina
Nana Goumwêndkouni Gilbert , Konfé Amadou , Ouédraogo Souleymane , KyThierry Sikoudouin Maurice , Kam Sié and Bathiébo M. J. Dieudonné
The evaluation of the solar deposit is essential for the sizing of photovoltaic systems. This requires the availability of radiation data. In Burkina Faso, weather data doesn’t cover all the country. That makes that solar radiation measured are not available for the all country. Theorical methods can help about it. This paper is written to fil(...)
Solar radiation, semi-empirical model, statistical indicators, estimate
ARTICLE
Energy Performances Analysis of a Solar Electric Car in Togo
Kokou Prosper Semekonawo, Sié Kam
In sub-Saharan Africa the cost of transport is very expensive for the populations. As the car fleet is mainly made up of thermal cars, the high cost of transport is largely linked to the oil’s import. Faced with such a situation, it is important to find other means of transport in order to reduce the transport’s cost for the populations. One o(...)
Car's range, energy, performance, solar electric car
ARTICLE
Experimental Study of Papaya Drying in an Indirect Solar Dryer in Natural Convection
Dianda Boureima, Traore Abdoul Fataho, Ouedraogo Adama, KY Sikoudouin Maurice Thierry, Ouedraogo Issaka, Kam Sié, athiébo Dieudonné
Papaya is a fruit that is prized for its flavor and also for its different appearances. It is seasonal and
easily perishable in our climatic conditions. This work is devoted to the improvement of
conservation techniques such as drying. We conducted our experimental work in an indirect solar
dryer in natural convection under(...)
Papaya, drying kinetics, Gaussian, thickness, diffusion coefficient.
ARTICLE
Linear Regression and ARIMA Models for Electricity Demand Forecasting in West Africa
Kokou Prosper Semekonawo; Sié Kam
This article focuses on the predictive study of electricity demand in West African countries based on the multivariate linear regression model and the ARIMA model. The objective of the study is first to establish for each country a linear regression model and ARIMA model, then to compare the two (2) models based on the MAD, RMSE and MAPE coeff(...)
ARIMA, demand, electicity, linear regression, model, prediction
ARTICLE
Comparative Study of the Thermal and Mechanical Properties of Foamed Concrete with Local Materials
Adelaïde Lareba Ouédraogo, Sayouba Kabré, Etienne Malbila, Abdoulaye Compaoré, Ramatou Saré, Paul Ilboudo, Sié Kam, Bruno Korgo, Dieudonné Joseph Bathiebo, Florent P. Kieno, Philippe Blanchard.
Abstract
Living in a habitat with comfort is requested by all. Cinder block bricks have poor thermal properties, leading people to use fan heaters and air conditioners to regain comfort. To overcome this problem of thermal discomfort in
buildings, we used lightweight concrete such as foamed concrete which is a material that has improved ther(...)
Foamed Concrete, Thermo-Mechanical Properties, Comparison, Local Materials
ARTICLE
A Modeling Study for Moisture Diffusivities and Moisture Transfer Coefficients in Drying of “Violet de Galmi” Onion Drying
Aboubakar Compaoré, Samuel Ouoba, Kondia Honoré Ouoba, Merlin Simo-Tagne, Yann Rogaume, Clément Ahouannou, Alfa Oumar Dissa, Antoine Béré, Jean Koulidiati
In the present work, the mass transfer characteristics, namely moisture diffusivity and moisture transfer coefficient of “Violet de Galmi” variety of onions were evaluated using the analytical model. Onions were dried in a single layer at different temperatures (40˚C, 50˚C, 60˚C, and 70˚C) and for a relative humidity of drying air of 20%. The(...)
“Violet de Galmi” Onion, Diffusion Coefficient, Drying Coefficient
ARTICLE
Analysis of the solar power plant efficiency installed in the premises of a hospital — Case of the Pediatric Charles De Gaulle of Ouagadougou
Adama Ouedraogo, Amadou Diallo, Soumaïla Goro, Wend Dolean Arsene Ilboudo, Saïdou Madougou, Dieudonné Joseph Bathiebo, Sié Kam
A 50kWp photovoltaic (PV) power plant installed in a hospital had its efficiencies analyzed in this work. Two emergency services of the hospital have been chosen to be fed with produced energy. In the present paper, easy sizing up means were used. The PV system is synchronized to the electrical grid to ensure the solar energy production and th(...)
Polycrystalline silicon PV module, PV power plant, Battery, Energy production, Energy consumption, Electric grid
ARTICLE
A Numerical Approach of the Behavior of a Compound Parabolic Trough Concentrator (CPC) with Double Glazing Using a Nanofluid as Working Fluid
Souleymane Ouedraogo, Sampawinde Augustin Zongo, Jean-Fidele Nzihou, Tizane Daho, Antoine Bere, Bila Gerard Segda, Jean Koulidiati
The aim of this work is the modeling by a numerical approach of the behavior of a compound parabolic trough concentrator (CPC) with double glazing using a nanofluid as working fluid. The base fluid is jatropha oil for it does not have an ecotoxic impact. The thermal oil, jatropha oil, selected takes into account the constraints related to sust(...)
CPC, Daily Efficiency, Nanofluid, Numerical Simulation, Mass Flow
ARTICLE
Experimental Alternative to the Determination of the Thermal Dependence of the Complex Modulus of Asphalt Mixes in Dry Tropical Areas
Sidpouita Mathilde Koudougou1,2*, Guy Christian Tubreoumya2,3, David Yemboini Kader Toguyeni1,2, Tégawendé Justin Zaida1
Current pavement design methods do not allow for the reduction of early
deformation of the surface layers of bituminous pavements in the city of
Ouagadougou. Weather conditions combined with traffic, particularly during
heat waves, are factors. The temperature at the surface of the bituminous
pavement can reach 62˚C but the complex mod(...)
Asphalt Mix, Complex Modulus, Axial Compression
ARTICLE
Evolution of the Average Temperature of the Interior Atmosphere of a Habitable Cell Made of Foamed Concrete in Burkina Faso
Adelaïde Lareba Ouédraogo, Etienne Malbila, Dieudonné Dabilgou, Fati Oumarou Amadou, Souleymane Ouédraogo, Salifou Ouédraogo, Adamah Messan, Sié Kam, Dieudonné Joseph Bathiebo, Florent Pèlèga Kiéno and Philippe Blanchart
Aims: The energy domain is responsible for the production of many gaseous, liquid and solid pollutants, strongly contributing to climate change. The provision of bioclimatic habitats to households is therefore necessary since it will contribute to the reduction of energy consumption. This work consists in making a study of the thermal behavior(...)
Foamed concrete, simulation, Comsol multiphysics, temperature, thermal phase shift
ARTICLE
Numerical Study of the Effect of Henry’s Constant on the Mechanisms of pesticides Transfer in The Superficial Layers of Hygroscopic Soils
Samuel Ouoba, Auguste A. Soré, Abdoulaye Kaboré and Jean Koulidiati
We describe the transfer mechanisms of pesticides in hygroscopic soils. The work consisted in using Henry’s constants of five pesticides to study the transfer mechanisms. The numerical work consisted to make a soil sample of height h with initial water content w0 and initial pesticide concentration C0 placing it in an ambient atmosphere
where(...)
hygroscopic soil, transfer mechanisms, pesticides, profiles of concentration
ARTICLE
Simulation and Experimentation of Water Heating in a Metal Tube Placed in a Solar Collector
Boureima Kaboré, Germain Wende Pouiré Ouedraogo , Boukaré Ouedraogo, Salia Drabo, Sié Kam, Dieudonné Joseph Bathiebo
Our work relates to a numerical and experimental study of a solar exchanger designed and tested in Laboratory of Renewable Thermal Energy. This device is a unit for transforming solar radiation into thermal energy. The objective of our work is to study the evolution of temperature in the solar collector-water system. Our results show that t(...)
Solar Exchanger, Thermal Energy, Solar Collector, Water