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Research Article
Study of the Management of the Electrical Energy Production and Distribution System Within the National School of Teachers of Mamou, Guinea
Issue:
Volume 12, Issue 3, September 2024
Pages:
32-36
Received:
21 July 2024
Accepted:
13 August 2024
Published:
30 August 2024
DOI:
10.11648/j.sjee.20241203.11
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Abstract: With the energy transition, marked essentially by the mass integration of energy production based on renewable resources, the missions and challenges of electrical energy distribution networks are evolving. This study is part of this dynamic, its objective is the study of the management of the production and distribution system of electrical energy within the National School of Teachers of Mamou. It emerges from this study that the supply of electrical energy to the National School of Teachers of Mamou is ensured by a hybrid system of three power sources: photovoltaic solar fields, Generator Group and Electricity of Guinea. The current electrical energy requirements of the Mamou NST are 40 kW. The total power of the installed photovoltaic solar fields is 70 kWp; the Generator used has a power of 10 kVA; the site’s Electricity of Guinea network is made up of transformers, cabin substations and protective equipment. The electricity distribution network is characterized by: Four (4) 250 A circuit breakers; a 32 A circuit breaker for the departure of lamps, sockets and fans; a 10 A circuit breaker for the lamps; a 10 A circuit breaker for the fans; a 16 A circuit breaker for the sockets and an 800 A mechanical inverter. The study shows that the power of photovoltaic solar fields is largely sufficient to cover the current electrical energy needs of the National School of Teachers of Mamou.
Abstract: With the energy transition, marked essentially by the mass integration of energy production based on renewable resources, the missions and challenges of electrical energy distribution networks are evolving. This study is part of this dynamic, its objective is the study of the management of the production and distribution system of electrical energy...
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Research Article
Technological Paradigm Between the Production of Photovoltaic and Thermal Solar Energy in Sahelo-Sahelian Countries
Issue:
Volume 12, Issue 3, September 2024
Pages:
37-47
Received:
5 August 2024
Accepted:
28 August 2024
Published:
11 September 2024
Abstract: The energy sector in Sahelian countries such as Burkina Faso, Mali and Niger is facing enormous challenges. Indeed, electricity shortages, characterized by recurrent breakdowns of means of production and import dependency due to an unfavorable energy mix, are numerous in these countries. Concerns about the high costs of facilities and operations, as well as environmental pollution, not forgetting to mention the matter of the countries' energy sovereignty, have led to the desire to use reliable, profitable and adapted means of production. The aim of this study is to review the literature on electric power generation systems in the world, in Africa and in Sahelian countries, with an emphasis focus on photovoltaic and thermal solar energy. In addition, it highlights, in views of the problems raised, works that have suggested solutions. To achieve this, scientific articles, theses and other scientific documents dealing with electric power generation systems from 2014 to 2024 have been consulted. This enabled us to get knowledge on the various electric power generation systems, to know their advantages and limitations, and above all the perspectives in terms of electric power generation. Additionally, they provided a source of inspiration for setting up an electric power generation system in line with the realities of the countries of the Alliance of Sahel States (ASS).
Abstract: The energy sector in Sahelian countries such as Burkina Faso, Mali and Niger is facing enormous challenges. Indeed, electricity shortages, characterized by recurrent breakdowns of means of production and import dependency due to an unfavorable energy mix, are numerous in these countries. Concerns about the high costs of facilities and operations, a...
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Research Article
Effect of Thermal Mass on Fuel Consumption of Solid Biomass Cooking Stoves
Issue:
Volume 12, Issue 3, September 2024
Pages:
48-58
Received:
4 June 2024
Accepted:
15 July 2024
Published:
20 September 2024
DOI:
10.11648/j.sjee.20241203.13
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Abstract: The use of rudimentary cooking stoves has harmful consequences not only for the health of users but also for the environment. Faced with these problems, studies are being carried out to develop more efficient stoves. The materials used for the construction and/or design of cooker range from heavy materials to light materials. However, cookers built from heavy materials accumulate a portion of the heat produced in their walls. The objective of this study is to demonstrate the influence of thermal mass on the fuel consumption of cookers. The study concerns not only a set of stoves taken from the literature but also a set of stoves that we tested. The two sets of stoves differ in terms of their characteristics: Single-pot wood stove without chimney or skirt, Single-pot wood stove without chimney with skirt, Multi-pot wood stove with chimney, Single-pot charcoal stove without chimney or skirt, etc. The adapted approach consists of classifying all stoves by category. Then, for each category, the mass of the cookers as well as the quantity of fuel necessary for the same cooking task will be compared. It appears that for all the stoves taken from the literature and all the stoves submitted to the test, in each of the categories, the higher the mass of the stove, the more fuel it consumes for the same cooking task.
Abstract: The use of rudimentary cooking stoves has harmful consequences not only for the health of users but also for the environment. Faced with these problems, studies are being carried out to develop more efficient stoves. The materials used for the construction and/or design of cooker range from heavy materials to light materials. However, cookers built...
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Research Article
Characterization of Adansonia Digitata Seed Cake with a View to Identifying an Energy Recovery Strategy
Kayaba Haro*
,
Abdel Anziph Sergel Khalid Nourou,
Sayouba Sandwidi,
Abdoulaye Compaore,
Guy Christian Tubreoumya,
Antoine Bere,
Oumar Sanogo
Issue:
Volume 12, Issue 3, September 2024
Pages:
59-66
Received:
5 August 2024
Accepted:
3 September 2024
Published:
20 September 2024
DOI:
10.11648/j.sjee.20241203.14
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Abstract: Agri-food processing emits huge quantities of waste and is considered one of today's major environmental problems. There are many different options (anaerobic digestion, thermochemistry and feed production) that can be applied to the management and evaluation of waste treatment. The aim of the present study was to explore the appropriate recovery option for Adansonia digitata seed cake through its characterization. The physicochemical characteristics of Adansonia digitata seed cakes were determined in accordance with international standards. Anaerobic digestion was tested under thermophilic conditions in batch mode over 75 days. Results showed that dry matter content averaged 87.35 ± 0.03%, organic matter content averaged 95.03 ± 0.41%, carbon to nitrogen ratio averaged 19.75. Digestion of Adansonia digitata seed cakes proved highly productive, with a maximum percentage of 68.5% CH4 for 185.57 liters of biogas, i.e. an average production of 2.47 liters per day for 1720 g DM. The methanogenic potential (BMP) of Adansonia digitata seed cake was 331.21 ml/g of organic matter introduced. Adansonia digitata oilcake had an average gross calorific value of 18.54MJ/Kg. These results are encouraging and mark the start of any study on the energy recovery of Adansonia digitata seed cake in biogas.
Abstract: Agri-food processing emits huge quantities of waste and is considered one of today's major environmental problems. There are many different options (anaerobic digestion, thermochemistry and feed production) that can be applied to the management and evaluation of waste treatment. The aim of the present study was to explore the appropriate recovery o...
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