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Physical Sciences and Engineering

RESUME Les énergies et plus particulièrement les énergies renouvelables sont un des éléments clés du développement soutenable aujourd’hui en plein expansion au Burkina Faso. Cette problématique est encore plus sensible dans les régions insulaires. Le chapitre 17 de l’Agenda 21 (Conférence Internationale de Rio, 1992) stipule que les îles sont des cas particuliers à la fois d’un point de vue […]
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Résumé Actuellement, les stratégies de gestion de l’énergie dans les réseaux intelligents sont pour la plupart limitées à l’intérêt d’un sous-système. En règle générale, chaque acteur est géré de façon autonome sans tenir compte du fait qu’il est intégré dans un réseau électrique à proximité. Par exemple, un système de gestion de l’énergie des bâtiments vise à fournir le niveau […]
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Abstract World is mostly concentrating on new inventions and running with updated technology. Farmers are back bone for every country in the world. Without farmer’s livelihood is difficult. Groundnuts is grown on a small scale by farmer. The major problem in groundnut production in country like Rwanda is the lack of groundnut processing machines available to farmers. In the beginning […]
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Abstract Nowadays the use of generating systems, which uses a renewable energy sources, has experienced a fast development. Moreover, their intrinsic intermittent nature can be overcome using hybrid systems which combine more energy sources. This project proposes the design of a hybrid generation system and energy storage purpose which will be able to cover the energy needs. The system is […]
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As technology stills increasing all over the world, the researcher thought of how to implement something which may be useful in needed instead of going on foreign markets to buy it; that is a siren which may act or sound like a police siren with a sound very similar to it. This study measures the acoustic characteristics of an innovative […]
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The development of renewable energy is one of the goals of our country, to reduce the environmental impacts caused by the increasing demand of energy in all sectors of modern life.  Air-conditioning is one of the major consumers of electrical energy in many parts of the world today. Air-conditioning systems in use are most often built around a vapor compression […]
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Office administration is a set of day-to-day activities that are related to financial planning, record keeping & billing and confidentiality with those of communicating, is the central dilemma of office design. The architectural design helps the owner of the building to determine the total cost of building by showing the plan view, bill of quantities and cost estimation of the […]
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Les bétons à hautes performances présentent une durabilité améliorée et une résistance accrue. Ils sont capables de supporter des charges supérieures ou permettre des constructions plus élancées. Les Béton à Haute Performance peuvent également présenter des formes plus complexes et permettent de réaliser des ouvrages de grandes portées. Pendant sept jours nous avons conservé dans l’eau des éprouvettes cylindriques de […]
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Selon J.Menéndez & al.(2019), la demande mondiale d’énergie devrait augmenter de plus d’un quart d’ici 2040 et la part de la production à partir d’énergies renouvelables passera à environ 40% . Cet objectif devrait être atteint en promouvant le développement accéléré de sources d’énergie  renouvelables  propres  et  à  faible  émission  de  carbone  et  en  améliorant l’efficacité énergétique, comme indiqué dans […]
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In Rwanda, after 1994 Genocide tremendous efforts have been made in order to improve the water and sanitation sector. In these days, Rwanda government has made efforts in improving available quantity of water in use. Rainwater harvesting is one among of the solution of water scarcity in the country. The objectives of this work is to estimate the water demand, the quantity of rainwater that can be harvested from Integrated Polytechnic Regional College of Karongi (IPRC Karongi) buildings, the design of storage tanks and the implementation possibilities of this project. The required water demand is estimated to 45 liters per capita per day. The data have been analyzed and the calculated quantity of rainwater is 12,296.15m3 per year and the storage capacity is1, 496.24m3. At the end of the work, the result shows that rainwater harvesting technique can save 22% of the bills paid for water every year. We note that the report deals with untreated water for non-consumptive activities. It is recommended to do further research concerning the treatment of rainwater for drinking purposes, so that the students may access the treated rainwater. I suggest implementing this project as soon as possible because of its many advantages.
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