GIM
PR
Activité scientifique
Profil chercheur
Enseignant-chercheur à l’Université de Yaoundé I. Grade : PR.
Publications scientifiques
Japhet Noubiap Ngouobe, Thibaut Lecompte, Paul Salomon Ngohe-Ekam, Landry Hervé Penlap, Micheal Tiendjou Tiombou, Barnabas Neba Nfornkah et 10 autre(s)
Heliyon
Japhet Noubiap Ngouobe, Thibaut Lecompte, Paul Salomon Ngohe-Ekam, Landry Hervé Penlap, Micheal Tiendjou Tiombou, Barnabas Neba Nfornkah et 10 autre(s)
Heliyon
The Cameroon has two bamboo species indigenous to Africa (the alpine bamboo Yushina alpina and the savan- nah bamboo Oxytenanthera abyssinica ), and one largely exotic species, Bambusa vulgaris . However, little on their physical characteristics and strength for the composites materials applications is known for these two indigenous bamboos species in Cameroon. Therefore, in this study, emphasis was laid on the alpine bamboo Y. Alpina , to evaluate its potential for bio-composites applications. Y. Alpina with ages ranging from 1-3 years, 4-5 years, and 7 years were characterized. The mechanical and physical properties of these three age ranges were compared. In the first place, the surface texture of the fibers was examined by scanning electron microscopy. Afterwards, chemical treatment was performed on the fibers with 1% NaOH. In addition, the chemical bonds of the molecules (functional groups) were identified by Fourier transform infrared spectra (FTIR) and the thermal properties of the fibers were examined with a thermogravimetric analyzer. Furthermore, the fibers density was assessed using the Rilem proto- col and a tensile testing machine was used to determine the mechanical properties of the treated fibers with 1% of NaOH. Finally, a dynamic mechanical analysis of 7-year-old Y. Alpina fibers was carry out.The results indicate that the Young's modulus of treated fibers with ages ranging from 1-3 years, 4-5 years, and 7 years were around 18 GPa, 10 GPa, and 14 GPa, respectively. In summary, this study underlines two primary points: (1) providing a platform for researchers to better understand the influence of age on the physical and mechanical properties of indigenous bamboo Y. Alpina ; and (2) providing a platform to validate suitable designs of bio-composites materials with Y. Alpina .
Penlap Landry Hervé, Tiendjou Tiombou Michael, Ngohe-Ekam Paul Salomon, Joseph Kenfack, Mbounguen Kenang Raphael, Jean Nganhou
Heliyon
This paper focuses on a CCHP (Combined Cooling, Heating and Power) system based on co-firing in an Internal Combustion Engine (ICE) of biogas from anaerobic digestion and syngas produced by biomass gasification. From an energy perspective, in order for the mixture to make sense, a relationship setting the threshold percentage of methane in the biogas has been established. Gasification and Organic Rankine Cycle (ORC) models developed in Aspen Plus software and thermodynamic modeling of the Internal Combustion Engine (ICE) have been validated by comparison with experimental work conducted by other authors. The results show a decrease in energy efficiency with an increase in the percentage of methane in biogas and the mass ratio of the mixture. For extraction rates of 80 % and 90 %, respectively, exergy efficiency increases with an increase in the percentage of methane in biogas and the mass ratio of the mixture. Additionally, an increase in gasification temperature improves the efficiencies, while an increase in biogas temperature reduces them. The ICE is a significant source of exergy destruction.
Nasser Yimen, Oumarou Hamandjoda, Lucien Meva’a, Ndzana Benoît, Jean Nganhou
Energies
Traditional electrification methods, including grid extension and stand-alone diesel generators, have shown limitations to sustainability in the face of rural electrification challenges in sub-Saharan Africa (SSA), where electrification rates remain the lowest in the world. This study aims at performing a techno-economic analysis and optimization of a pumped-hydro energy storage based 100%-renewable off-grid hybrid energy system for the electrification of Djoundé, which is a small village in northern Cameroon. Hybrid Optimization of Multiple Energy Resources (HOMER) software was used as an analysis tool, and the resulting optimal system architecture included an 81.8 kW PV array and a 15 kW biogas generator, with a cost of energy (COE) and total net present cost (NPC) of €0.256/kWh and €370,426, respectively. The system showed promise given the upcoming decrease in installation cost of photovoltaic systems. It will be viable in parts of SSA region but, significant investment subsidies will be needed elsewhere. The originality of this study can be emphasized in three points: (1) the modelling with the recently introduced pumped-hydro component of HOMER; (2) broadening sensitivity analysis applications to address practical issues related to hybrid renewable energy systems (HRES); and, (3) consideration of the agricultural sector and seasonal variation in the assessment of the electricity demand in an area of SSA.
Elie Bertrand Kengne Signe, Oumarou Hamandjoda, Jean Nganhou
Energy Procedia
Hydroelectricity is the largest source of renewable energy. However, large hydroelectric power stations will no longer be built enough. But there is tremendous potential for small hydropower that is seen as a more suitable renewable energy source. Cameroon has also a great hydroelectric potential. This work presents a simple method of the feasibility studies of a Micro Hydroelectric Power Plant (MHPP) project, in the intention to contribute to its development in Cameroon. The study was supported by feasibility studies of the KEMKEN MHPP project. It is a project of 320 kW of installed power, where the Kaplan turbine is recommended, the investment cost evaluated at 212 486 656 FCFA with a payback period around 7 years. This work contains the necessary elements of the feasibility studies of a MHPP project in rural locality.
Kengne Signe Elie Bertrand, Oumarou Hamandjoda, Jean Nganhou, Laure Wegang
Journal of Power and Energy Engineering
All serious projects over the world should respect the objectives of sustainable development. The contribution of every country against the climate change is request applied. The development of renewable energies is an effective contribution to solutions for this relevant question. Hydropower energy is one of most promising clean energy technologies. However, Micro Hydro Power Plants (MHPP) will be more promising than large hydro power stations. Cameroon has a great hydroelectric potential, but the access rate to electricity is still very low in rural areas of this country. The objective of this work is to do the technical and economic assessment of a MHPP in BAKASSA, which is a remote village in the West Region of Cameroon, in the intention to contribute to its sustainable development. The results of this study show that this MHPP project can be developed with installed power of 97 kW, where the Francis turbine is recommended. The investment cost evaluated at 88,440,068 FCFA. It is a profitable project with a maximum payback period of 9 years.
Aubin Kinfack Jeutsa, Abdou Njifenjou, Jean Nganhou
Journal of Applied Mathematics
A Discrete Duality Finite Volume (DDFV) method to solve on unstructured meshes the flow problems in anisotropic nonhomogeneous porous media with full Neumann boundary conditions is proposed in the present work. We start with the derivation of the discrete problem. A result of existence and uniqueness of a solution for that problem is given thanks to the properties of its associated matrix combined with adequate assumptions on data. Their theoretical properties, namely, stability and error estimates (in discrete energy norms and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:msup><mml:mrow><mml:mi>L</mml:mi></mml:mrow><mml:mrow><mml:mn fontstyle="italic">2</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>-norm), are investigated. Numerical test is provided.
Signe Elie B Kengne, Oumarou Hamandjoda, Tekounegning, Jean Nganhou
African Journal of Environmental Science and Technology
As a result of the nature of pollutant and exhaustible of fossils energies, developed countries have made use of renewable energy sources to make effective their energy systems. To stow on that vision in Cameroon, the promotion of micro-hydroelectric powers plants (MHPP) is a priority and any contribution to its ease is beneficial. The objective of this study is to characterize some main forges in the west region of Cameroon and show their technical input in the development of MHPP in that region. The survey was conducted in January, 2014. Socioeconomic data related to blacksmiths and main features were studied by the use of questionnaires, direct interviews, site observations and measurements. Main results show that the first forges was set in the Foto village in 1850 by blacksmiths from Nigeria. The studied forges are of traditional (62.5%) and modern type (37.5%). More than 50 products belonging to the main use sectors are manufactured, adapted and/or repaired. The main problems identified are acquisition of raw materials, the lack of equipment and limited technical knowledge. The blacksmiths has been involved in MHPP facilities since 1997, the installation year of the pilot MHPP with the participation of local craftsmen. Civil engineering structures, hydroelectric unit, transportation and distribution equipment are built by local blacksmiths using as much maximum materials as possible. This is often a source of malfunction. Thus, funding of local craftsman and equipment by the government or other agencies can render the forges useful for sustainable development in the west region of Cameroon. Key words: Study, blacksmiths, micro hydroelectricity, funding, Cameroon.
Abraham Kanmogne, Jean Nganhou, Oumarou Hamandjoda
SUMMARY An experimental study is made to determine the thermal output by convection and radiation inside a closed enclosure, crossed by two cylindrical tubes.The objective of this study is to determine the quantity of energy necessary, then to model it for current applications (drying, solar collectors etc.). A quantity of dry biomass is burned in two interdependent hearths with two cylindrical tubes which crosses a closed enclosure. The determination of the quantity of energy emitted by radiation and convection in the closed enclosure and which constitutes the useful energy in the case of drying , accounts for 33% of the natural energy contained in the fuel (wood).
Abraham Kanmogne, Yves Jannot, Jean Nganhou
SUMMARY In this article, we-have carried out the power control of a dryer, all which uses forced air circulation, imported from Ghana and installed in Pouma for drying cassava in Cameroon. The performance of the dryer does not meet up with the expected needs. This power control has made us detect the causes of a high power consumption rate of the dryer and therefore carry out by changes to Obtain Optimal Functioning year; we-have added a scythe of ceiling, blown out Mittal heating resistors, changed air ventilation turbines, Multiplied and Uniformly Redistributed sections for the heated air passages in the dryer. We have identified the different dead zones in the dryer. The changes made on the dryer-have led to a reduction in power control of about 20%.
Ndzana Benoît, Biya Motto Frederic, Jean Nganhou, Eloundou Banack Herve Joseph
Research and reviews: journal of engineering and technology
This work shows the results obtained from the design of the discharge structure, the flood discharge sluice gate and floating debris sluice for the mekin hydropower project. To begin, the basic design data which includes the type and grade of discharge structure, the flood standard, the characteristic water level and the discharge rate are determined. The work continues with the presentation of the exact location, and the structural composition. The hydraulic calculations which are the flow rate calculation and the energy dissipation calculation are also presented
Abraham Kanmogne, Y. Jannot, Jean Nganhou
DOAJ (DOAJ: Directory of Open Access Journals)
A Concise Description and Analysis of Methods Used for Cocoa Drying in the South Region of Cameroon. An inventory of drying methods and types of cocoa dryers used by farmers in rural zone of South Cameroon was made. These include direct solar drying which is predominant and thermal drying using energy from burning wood. Different types of dryers are associated with each of these drying methods. These consist of "autobus" dryer in south zone, dryer on cemented area in center zone, firewood dryer in south -west zone and ground dryer used in the South Region of Cameroon. An analysis of real needs in drying in the rural zone and an appraisal of available means to accomplish them were done using an investigation carried out among rural farmers. Cocoa conservation is very difficult because climatic condition is unfavorable during production. Local unit of measurement, which is bag, weighs about 50 to 80 kilograms. Cocoa buying price from the producer is very high at the end of production. Mean duration of fermentation is 7 days. A laboratory determination of water content in dry base of cocoa samples used during the investigation shows that it varies from 10 to 20% instead of the 8%, which is the recommended water content. The range of water content found shows that drying is inadequate.
Abraham Kanmogne, Yves Jannot, B. Lips, Jean Nganhou
An experimental study has been carried out on fermented coca beans. First, the desorption isotherms have been experimentally determined at 40 and 55°C. Second, an experimental study of the convective drying of fermented cocoa has been achieved under different operative conditions: drying air speed: 0.25, 0.5 and 1.0 m.s -1 ; drying temperature: 40 and 55°C; thickness of cocoa layer: 2, 3 and 4 cm. After testing several sorption isotherm models, it was shown that the Modified-Oswin's equation enables a good reconstitution of experimental results with a Root Mean Square Deviation of 0.0071 kgw.kgdb -1 between the experimental and the modelled values of the cocoa water content (varying from 0.02 to 0.12 kgw.kgdb -1 ). Another result is that the drying curves may be satisfactorily represented by the Drying Characterisitc Curve (DCC) model. It was also found that the cocoa beans characteristic curve does not depend strongly on the product layer thickness and may be represented by a power function which exponent has been determined.
Yves Jannot, André Talla, Jean Nganhou, Jean‐Rodolphe Puiggali
Drying Technology
Experimental convective drying tests of banana have been carried out for different air conditions to show the influence of air temperature, absolute humidity and speed on the drying rate. The analysis of the drying rate evolution as a function of product water content enables the identification of fourth drying phases: temperature rising (phase 1), exponentially decreasing drying rate (phase 2), linearly decreasing drying rate (phase 3) and very low drying rate (phase 4). The temperature rising phase 1 being very short and the last phase 4 being not reached during typical drying, the drying characteristic curve (DCC) has been represented by two different mathematical functions fitting phases 2 and 3. Their parameters have been determined by minimization of the quadratic errors between experimental and theoretical curves. It leads to a unique curve (the DCC) representing all air drying conditions the integration of which enables the calculation of the product water content with a maximum error of 0.09 between experimental and simulated values.
Jean Nganhou, Donatien Njomo, Jean‐Claude Bénet, Frédéric Augier, G. Berthomieu
Heat and Mass Transfer
Donatien Njomo, Jean Nganhou
Transactions of the Canadian Society for Mechanical Engineering
A l’aide de la méthode des tracés optiques, on établit les expressions de calcul des propriétés thermiques radiatives d’une lame de matériau semi-transparent isothermique prise en sandwich entre deux milieux dont l’un est transparent et l’autre quelconque. Ces résultats généraux sont ensuite appliqués au calcul de la transmittance, de la réflectance et de l’absorptance d’une lame de verre plongée dans l’air et celles d’une lame d’eau reposant sur une plaque métallique. On montre dans cette étude que les approximations de Hottel et Woertz couramment utilisées dans les systèmes solaires ne sont applicables qu’en incidence normale pour la plupart des verres claires qui ont un produit K v L v > 0,0529, K v étant le coefficient d’extinction et L v l’épaisseur de la lame de verre.
André Talla, Yves Jannot, César Kapseu, Jean Nganhou
Sciences des Aliments
International audience
F. AUGBER, Jean Nganhou, Jean‐Claude Bénet, G. Berthomieu, Michel Barel
Drying Technology
A study was carried out of the changes in moisture and acetic acid contents during the fermentation and convection drying of cocoa beans. A laboratory drier operating by convection or conduction and a series of three volatile acidity extractors based on the Mothe-Efter method were used. An original cutting system made it possible lo analyse five inner layers of cocoa bean from the centre to the outside edge. Processing of the results enabled the determination of the local and overall changes in the moisture and acetic acid contents and showed the influence of air parameters on drying in thin layers.
Fabrice Augier, Jean Nganhou, Michel Barel, Jean‐Claude Bénet, G. Berthomieu
Agritrop (Cirad)
L'étude de l'évolution de l'acidité volatile du cacao est menée, au Mexique, à l'échelle de la graine, selon diverses techniques et conditions de séchage. Les fèves sont séchées dans une boucle thermodynamique fonctionnant en mode convectif ou conductif. Une découpe originale permet d'analyser séparément cinq couches internes de la graine, du centre vers l'extérieur et de tracer les "profils" des teneurs en eau et en acidité volatile. Les résultats montrent une répartition non uniforme de l'acidité dans la graine. En conduction, l'acidité varie très peu. En convection, lors d'un séchage fort (60°C ou 80°C), la migration de l'acide acétique (principal acide volatil du cacao) est difficile à déceler. En revanche, un séchage plus doux (à 40°C) conduit à une diminution sensible de l'acide, tendant même vers un seuil, d'où l'hypothèse de deux modes de liaison de l'acide dans la graine de cacao.
Agritrop (Cirad)
Le séchage artificiel du cacao par les moyens conventionnels (convection) donne souvent un cacao de forte teneur en acide acétique. Ceci suppose que l'eau et l'acide acétique ont un mécanisme de migration différent. Pour comprendre ce phénomène et résoudre le problème d'acidité, une boucle de séchage fonctionnant en mode convectif ou conductif a été mise au point au CIRAD-CP. L'objectif de ce stage est de définir la méthodologie pour déterminer la répartition de l'eau et de l'acide acétique dans une fève de cacao en cours de séchage. On détermine d'abord le poids minimum de la poudre de fève en dessous de laquelle la mesure de la teneur en eau et en acide acétique n'est plus possible (0,4 g et 0,5 g). On détermine la méthode de découpe à l'aide de techniques utilisées en histologie (tranches de 0,3 mm) et la conservation par le froid des échantillons prélevés. La mise en application réelle de la méthode a été réalisée avec succès sur un produit histologiquement semblable : la châtaigne
P. J. Fotso, Didier Lecomte, L. Pomathios, Jean Nganhou
On envisage deux types de configuration du systeme de sechage suivant la nature du generateur d'air chaud. Dans la premiere configuration, le sechoir est ventile par de l'air chaud sortant d'un capteur solaire du type multi-masse. La seconde configuration utilise un rechauffeur d'air constitue de resistances electriques. Pour chaque sous-systeme de la chaine, on propose une modelisation fine et originale; une etude systematique de l'etat thermique, massique et des performances du systeme de captation multi-passes et du systeme de sechage en fonction des parametres externes et internes est realisee. On envisage aussi l'effet d'un recyclage de l'air sur le comportement dynamique du systeme de sechage. Enfin, une conformation entre les resultats experimentaux obtenus sur un prototype construit et teste en laboratoire avec des resistances electriques permet une validation du modele theorique propose pour le sechage d'un lit epais des feves de cacao
PENLAP Landry, Tiendjou Tiombou Michael, Paul Salomon Ngohe Ekam, Joseph Kenfack, MBOUNGUENG Raphael, Jean Nganhou
SSRN Electronic Journal
Fabien Akana Tsopmo, Jules Marcel Keutchanga Foncha, Jean Claude Damfeu, Bernard Gaga Dadi, Abraham Kanmogne, Jean Nganhou
European Journal of Engineering and Technology Research
The drying method and types of agricultural dryers used by farmers in rural West Cameroon were surveyed. These are direct solar drying (predominant). Different types of dryers are associated with each of these drying methods. These are the open-air bamboo mat dryer and the collar dryer. An analysis of the actual drying needs in rural areas and an evaluation of the means available to meet them are conducted based on a survey of farmers in rural areas. The conservation of Dioscorea Schimperiana is very difficult because of the unfavorable climatic conditions during production. The local unit of measure is the basket, which weighs between 5 and 25 kilograms. The purchase price of Dioscorea Schimperiana from the producer is higher in the rainy season. The drying time varies between 1 to 2 weeks for the bamboo dryer and 3 to 4 weeks for the necklace dryer. Laboratory determination of the dry-base moisture content of the post-drying Dioscorea Schimperiana samples collected during the surveys shows that it varies from 12.1 to 19.04 % instead of 11 % which is the recommended moisture content. The range of moisture content found shows insufficient drying.
Elie Bertrand Kengne Signe, Lyse Vanessa Ngansop Tchatchouang, Pierre Pokem, Paule Alexandrine Ekoube, Lucien Meva’a, Jean Nganhou
Journal of Power and Energy Engineering
The state of Cameroon, faced with the situation the electricity deficits, is promoting the development of renewable energies in general and to meet rural electrification needs in particular. The purpose of this work is to study the feasibility of the MHP of Batcheu, to show its contribution to sustainable development in this locality and to prove that it is a profitable project. After study, it appears that the waterfall of Batcheu is favourable to the establishment of a MHP with an installed power of 260 kW with an operating diagram corresponding to a Francis turbine. Given that it is a renewable energy that can supply more than 800 households in rural areas, its contribution to sustainable development is obvious. Its investment cost is estimated at 171,465,396 FCFA. It is a profitable project with a payback time of 7 years and 2 months.
Pierre Pokem, Elie Bertrand Kengne Signe, Jean Nganhou, Yaouba
Journal of Power and Energy Engineering
This paper develops the modeling of wind speed by Weibull distribution in the intention to evaluate wind energy potential and help for designing small wind energy plant in Batouri in Cameroon. The Weibull distribution model was developed using wind speed data collected from a metrological station at the small Airport of Batouri. Four numerical methods (Moment method, Graphical method, Empirical method and Energy pattern factor method) were used to estimate weibull parameters K and C. The application of these four methods is effective using a sample wind speed data set. With some statistical analysis, a comparison of the accuracy of each method is also performed. The study helps to determine that Energy pattern factor method is the most effective (K = 3.8262 and C = 2.4659).
Fréderic Lontsi, Oumarou Hamandjoda, Pascal Stouffs, Jean Nganhou
International Journal of Thermal Technologies
The open Joule cycle reciprocating Ericsson engine shows promising results as regards small-scale cogeneration applications using renewable energies such as biomass or solar energy. Integrating a regenerative heat exchanger into a simple open Joule cycle helps to improve the engine performance thanks to the recovery of the waste heat of hot gases downstream the expander. A dynamic model of a small open Joule cycle Ericsson engine with a shell-andtube counter-flow regenerative heat exchanger is developed and simulated in order to study the operation stability, the system behaviour especially during transient phases, and the control strategies. Compared to the engine configuration without regeneration, simulation results predict a slower hot start-up transient followed by a stable operation of the engine with 21% increase of the engine thermal efficiency, 14.3% increase of the engine power output and a 529.5K exhaust air flow suitable for cogeneration purposes. Subjected to a selected perturbation (10kPa compressor inlet pressure drop) the engine reacts well and the operation is stabilized after a much longer transient phase. Valve settings are also addressed to maintain the system set pressure.
Rolland Djomi, Lucien Meva’a, Jean Nganhou, Gérard Mbobda, Abel Emmanuel Njom, Yves Didier Modtegue Bampel et 1 autre(s)
Journal of Materials Science and Chemical Engineering
This work presents the physical and thermal characterization of the dura palm kernel powder of Cameroon for their use as fillers for polymers composites. The powders of palm kernel were obtained using a percussion grinder mill with an industrial microniser which allowed obtaining a powder less than 50 μm with an apparent density between 0,505 ≤ ρ ≤ 0,680 g/cm3 at 1.56 of relative humidity. The infrared of the powder of palm kernel shows the presence of phenols groups with a large band around 3341 cm-1, -C-H at 2917.02 cm-1 and -C-O at 1040 cm-1 as the main peaks. The polyvinyl chloride of infrared obtained shows the presence of -C-Cl, -CH2 and CH as the mains peaks. The infrared of 12.5% of palm kernel powder with polyvinyl chloride shows an increase of the CH2 and CH bonds and a decrease of the -OH bonds. Thermogravimetric analysis and differential scanning calorimetric analysis of powders, polyvinyl chloride and mixture showed that the mixing powders are intermediate between the polyvinyl chloride and palm kernel powder. The powder decreased the phase temperatures of the mixture from 98.58℃ to 95℃ for the glass transition temperature and from 515℃ to 459℃ for the crystallization temperature. The thermogravimetric curves of palm kernel powder and polyvinyl chloride have showed that these materials lose their different masses in three different phases, and the one of composite (mixture of polyvinyl chloride with 12.5% of palm kernel powder) in two different phases.
Fréderic Lontsi, Oumarou Hamandjoda, K. F. Djanna, Pascal Stouffs, Jean Nganhou
Energy Science & Engineering
Abstract Externally heated Joule cycle reciprocating engines, also known as Ericsson engines, are particularly suitable for small‐scale solar energy conversion and microcogeneration using biomass or gas effluents at high temperatures. These types of engine have been developed in the context of the current issue of climate change, combined with a progressive depletion of fossil fuels. A dynamic model of a 1.67 kW small open Joule cycle engine has been developed in order to study operational stability and behavioral control, especially during transient phases. Models are implemented on a Matlab/Simulink platform where simulations of the dynamics of engine start‐up and steady conditions are carried out. The optimal settings of valves and the key engine parameters have also been determined. Simulation results reveal a rapid transient phase. Hot starting is achieved in about 5.3 sec and the system is stabilized, with a thermal efficiency of approximately 29%. The system responds well when subjected to selected perturbations.
Fréderic Lontsi, Oumarou Hamandjoda, Kennedy Folepai Fozao, Pascal Stouffs, Jean Nganhou
Energy
Ndzana Benoît, Biya Motto Frederic, Jean Nganhou, Eloundou Banack Herve Joseph
Research and reviews: journal of engineering and technology
This work shows the results obtained from the design of the Earth Dam for the Mekin Hydropower project. This water retaining earth dam design includes the water retaining parts of the main dam and the auxiliary dam. To begin, the basic design data which includes the class of the water retaining structures, flood standard, characteristic water level and fetch length are determined. The work continues with the presentation of the exact location, and the different structures that constitute the earth dam. The dam slope and crest which make up the dam body are also presented followed by their sizing. In addition a study of the seepage-proofing soil and filling material of the dam body is done
Ndzana Benoît, Biya Motto Frederic, Jean Nganhou, Eloundou Banack Herve Joseph
Research and reviews: journal of engineering and technology
This work shows the stability analysis which is carried out on the dam body (section, seepage and slope) of the main and auxiliary dams of Mekin hydropower plant. Based on the results of the design of the structure of the dam body, the calculations of the seepage and slope stability of the dam are done using numerical methods implemented on the Earth and Rockfill dam slide slope stability analysis (STAB) software.
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