Academic literature on the topic 'Barrage hydroélectrique'
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Journal articles on the topic "Barrage hydroélectrique"
EDF Production Transport. "Présentation de l'aménagement hydroélectrique du Pouget et du barrage de Pareloup (Aveyron)." Hydroécologie Appliquée 6 (1994): 1–7. http://dx.doi.org/10.1051/hydro:1994001.
Full textRapin, Anne, Marion Rabiet, Malgorzata Grybos, Brice Mourier, Alexis Fay, Tim Kestens, and Véronique Deluchat. "Distribution spatiale et mobilité du phosphore sédimentaire dans une retenue hydroélectrique." Revue des sciences de l’eau 30, no. 1 (June 8, 2017): 71–76. http://dx.doi.org/10.7202/1040066ar.
Full textMeledje, NH, KL Kouassi, YA N'go, KM Kouassi, I. Savane, and K. Aka. "Caractérisation des apports sédimentaires et morphologie du lac du barrage hydroélectrique d’Ayame 1 (Sud-Est Côte d’Ivoire)." International Journal of Biological and Chemical Sciences 8, no. 3 (October 20, 2014): 1290. http://dx.doi.org/10.4314/ijbcs.v8i3.42.
Full textGeorges, Blahoua Kassi, Adou Yedehi Euphrasie, Gogbé Zeré Marius, and N’Douba Valentin. "Régime Alimentaire De Hemichromis Fasciatus (Perciformes, Cichlidae) Dans Le Lac De Barrage Hydroélectrique D’ayamé 2 (Côte D’ivoire)." European Scientific Journal, ESJ 13, no. 30 (October 31, 2017): 126. http://dx.doi.org/10.19044/esj.2017.v13n30p126.
Full textJacquemot, Pierre. "En République démocratique du Congo, Inga, le plus grand barrage hydroélectrique du monde, encore à l’état de projet." Afrique contemporaine 261-262, no. 1 (2017): 252. http://dx.doi.org/10.3917/afco.261.0252.
Full textRichard, S., A. Grégoire, and P. Gosse. "Efficacité d'un seuil artificiel sur l'oxygénation de l'eau et l'élimination de CH4 contenu dans l'eau évacuée par la barrage hydroélectrique de Petit Saut (Guyane française)." Revue des sciences de l'eau 18 (April 12, 2005): 127–41. http://dx.doi.org/10.7202/705580ar.
Full textOliveira, Carlos J. Maia de, and Jacques Clavier. "Variations spatio-temporelles des matieres en suspension dans I'estuaire du Sinnamary, Guyane française: influence du barrage hydroélectrique de Petit Saut." Revista Brasileira de Oceanografia 48, no. 1 (2000): 29–39. http://dx.doi.org/10.1590/s1413-77392000000100003.
Full textHoreau, V., Ph Cerdan, and A. Champeau. "La mise en eau du barrage hydroélectrique de Petit-Saut (Guyane): ses conséquences sur les peuplements d'invertébrés aquatiques et sur la nourriture des poissons." Hydroécologie Appliquée 9 (1997): 213–40. http://dx.doi.org/10.1051/hydro:1997009.
Full textHoreau, V., S. Richard, R. Vigouroux, L. Guillemet, and P. Cerdan. "Variabilités spatiales et temporelles de la qualité physico-chimique et des invertébrés pélagiques des eaux de la retenue hydroélectrique de Petit Saut (Guyane française)." Revue des sciences de l'eau 18 (April 12, 2005): 109–26. http://dx.doi.org/10.7202/705579ar.
Full textCROZE, O., and M. LARINIER. "Étude du comportement de smolts de saumon atlantique (Salmo salar L.) au niveau de la prise d'eau de l'usine hydroélectrique de Pointis sur la Garonne et estimation de la dévalaison au niveau du barrage de Rodère." Bulletin Français de la Pêche et de la Pisciculture, no. 353-354 (1999): 141–56. http://dx.doi.org/10.1051/kmae:1999010.
Full textDissertations / Theses on the topic "Barrage hydroélectrique"
Rapin, Anne. "Mobilité du phosphore sédimentaire en contexte de retenues de barrage hydroélectrique." Thesis, Limoges, 2017. http://www.theses.fr/2017LIMO0097.
Full textInternal sedimentary phosphorus (P) load cause delay time in eutrophication recovery, especially in dam-reservoir systems where P stock are important. Then, the study of sedimentary P mobility in dam-reservoirs allow to better explain P geochemistry in this context and further to adapt management restauration policies. This study highlights the impact of three cascade dams (Age Complex, Creuse, France) on the distribution of sedimentary P along a fluvial continuum. In the impoundments studied, TP levels averaged 1.59 ± 0.51 mgP /g DW and increased towards dams. This contrast with the low and constant concentrations observed in the fluvial parts. In reservoirs, chemical fractionation showed that more than 50% of the extracted P was associated with the ascorbate fraction. The association of P to amorphous Fe oxi-hydroxides in the fine particles accumulated closed to the dam is the major factor explaining the longitudinal variations of the TP contents. In addition, the high levels of P associated with these redox-sensitive phases and the development of a hypoxic hypolimnion in studied reservoirs reveal the high potential for sediment P mobilization. Moreover, in aerobic conditions, a risk of mobilization resulting from an equilibrium concentration between solute and solid fraction exists. The determination of the EPC0 threshold value underlined the spatial evolution of the sink / source role of the sediment with respect to the P, between the reservoirs of the same complex. Finally, the study of sedimentary P mobility in the laboratory, following two successive aerobic and anaerobic cycles, showed that redox potential oscillation observed in the reservoirs, favors the mobilization of the sedimentary P. The geochemistry of iron and the quality of dissolved organic matter appear to be involved in the mobility of P
Ftatsi, Mbetmi Guy-De-Patience. "Fiabilité résiduelle des ouvrages en béton dégradés par réaction alcali-granulat : application au barrage hydroélectrique de Song Loulou." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30116/document.
Full textThis work proposes a multi-scale methodology based on the use of surrogate models function of random variables, to evaluate the residual reliability of concrete structures suffering from alkali-aggregate reaction (AAR), for a better maintenance purpose. Surrogate models, based on polynomial chaos expansion of the parameters of a shape function (sigmoid in the studied cases), have been constituted at several scales, in particular in order to reduce computation time of the underlying physical models. At the microscopic scale, the AAR model employed is that developed by Multon, Sellier and Cyr in 2009, initially comprising about twenty potential random variables. At the end of a Morris sensitivity analysis, the surrogate model enables to reproduce the expansion curve over time of the representative elementary volume as a function of nine random variables. The use of the built-in surrogate model in predicting the mechanical effects of AAR expansion on a concrete core required to take into account the anisotropy of these effects by improving the weight functions proposed by Saouma and Perotti in 2006. The core's scale being validated by the comparison of the predictions with the experimental data of Multon's thesis work, an application at the scale of the Song Loulou dam was undertaken. The computation of the thermo-chemo-mechanical behavior of a spillway stack, whose results in displacement could be compared with the auscultation data provided by the company AES-SONEL (now ENEO), was realized. Surrogate models were then constructed at the scale of the structure to obtain displacements at the points of interest, related to the operating limit states of the spillways, and thus to estimate the residual reliability of the dam. The sensitivity analysis computations as well as the construction of the surrogate models were implemented in Fortran, Java and OpenTURNS. Computations on concrete cores and Song Loulou dam spillway were performed under Cast3M
Frémion, Franck. "Dynamique des flux sédimentaires et des éléments métalliques en lien avec l’exploitation courante et exceptionnelle d’un barrage hydroélectrique." Thesis, Limoges, 2016. http://www.theses.fr/2016LIMO0102/document.
Full textDam reservoir contexts concentrate social, economic and environmental issues. Their presence modifies both natural water and sediments continuity. Water level can be stable or fluctuate according to hydrological cycles and exploitation, leading to more or less pronounced sediments and associated contaminants remobilization. In such context, this work aims at studying spatio-temporal changes in concentrations, fluxes as well as speciation of metallic elements during natural and anthropologically-driven sediments accumulation and resuspension phases. For this purpose, a 19 months field survey was performed upstream and downstream from the dam during both routine and exceptional exploitation. The water and sediments quality during two sluicing events, performed in order to re-erode deposited reservoir sediments and flush them downstream through the bottom valves of the dam during high flows, were notably monitored. As for the influence of the main physicochemical parameters (i.e., solid/liquid ratio, pH, redox potential, drying) on metallic elements fate and speciation as well as the different processes involved, they were studied through laboratory experiments, statistical analyses and modeling. Results highlighted that during routine exploitation, dam presence leads to a significant discontinuity in metallic element dissolved concentrations, fluxes and speciation, mainly through pH changes magnified by water flow artificial lowering. During sluicing management, the high local pH, redox and S/L changes of the downstream water, mainly following maximum sediments release, enhance As, Fe and Mn solubilization through desorption or metallic oxydes dissolution. Nevertheless, given the overall low mobility of the metallic elements and bearing phases stability, dissolved fluxes remain far lower than particular ones. Recurrent sluicing management permits to minimize sediments and metallic fluxes, limiting toxicity towards aquatic biota
Moullard, Pierre-Yves. "Aménagement hydroélectrique de Turkwel en bordure du rift - Kenya : contribution du génie géologique à la conception et aux travaux du barrage." Grenoble 1, 1991. http://www.theses.fr/1991GRE10147.
Full textNguyen, Van Thiet. "Aménagements hydroélectriques et conséquences environnementales dans le nord du Vietnam." Thesis, Toulouse 2, 2015. http://www.theses.fr/2015TOU20031/document.
Full textThe thesis project assumes that the construction of hydropower dams could be a driven force for a harmonious economic development between mountains and plains. The aim would be to link policies for hydropower dam development, and policies for agriculture in mountains, within individual strategies, in relationship with physical and socio-economic constraints. Since 2000’s, throughout Southeast Asia, many projects of large hydropower dams are built or being built to meet the strong growth in demand for energy, causing great threats to water management and the environment on the one hand, and imposing important population displacement on the other hand. In these mountainous regions, the erosion process is a major risk for both the filling of reservoirs and agricultural soil productivity. Then major investors, for the lifespan of hydropower dams, and small farmers, for their livelihoods, are equally impacted. The challenge is to reformulate the relationship between planning and management of hydropower dams, and planning and management of agricultural uplands in upstream areas of dams. Although the socio-economic support has been very much improved from the Vietnamese State, displaced and non-displaced farmers are still largely undergoing regional socio-spatial changes on-going. In spite of good government and international intentions, the lack of consultation at local level and the lack of knowledge in hydro-ecology remain major constraints to the success of environmental protection and equity between the concerned populations, two mandatory conditions for sustainability of hydroelectric dam projects. In conclusion, it appears that the successful implantation of a large hydroelectric dam is related to the ability of policymakers to understand the complex interactions between ecological and socio-economic systems
Guérin, Frédéric. "ÉMISSION DE GAZ A EFFET DE SERRE (CO2, CH4) PAR UNE RETENUE DE BARRAGE HYDROÉLECTRIQUE EN ZONE TROPICALE (PETIT-SAUT, GUYANE FRANÇAISE) :EXPÉRIMENTATION ET MODÉLISATION." Phd thesis, Université Paul Sabatier - Toulouse III, 2006. http://tel.archives-ouvertes.fr/tel-00079947.
Full textSur 10 ans, les émissions atmosphériques se sont avérées très significatives, notamment les trois premières années ayant suivies la mise en eau, puis décroissent au cours du temps. Tandis que 50% des émissions de CO2 ont lieu à la surface du lac, les émissions de CH4 sont principalement localisées en aval des turbines.
Les émissions atmosphériques résultent de la dégradation de la MO (sol et biomasse issus de la forêt tropicale) immergée lors de la mise en eau et leur diminution au cours du temps découle de l'épuisement du stock de MO. Au terme de 10 ans, 20% du stock de carbone a été minéralisé et émis vers l'atmosphère sous forme de CO2 et de CH4. L'oxydation aérobie du CH4 transforme plus de 95% du CH4 diffusant depuis l'hypolimnion en CO2 dans la colonne d'eau du lac et 40% du CH4 entrant dans la rivière à l'aval. A l'échelle du barrage ce processus est responsable de l'oxydation de 90% du CH4 produit et de 30% des émissions totales de CO2. Le CH4 et le CO2 qui atteignent les eaux de surface du barrage sont émis vers l'atmosphère par flux diffusifs. L'étude de ce processus de transfert gazeux à l'interface air-eau montre que, en milieu tropical, les flux diffusifs sont accélérés par les fortes températures et les phénomènes pluvieux.
Le modèle est basé sur le modèle hydrodynamique SYMPHONIE 2D et les modules biogéochimiques développés dans le cadre de cette étude à partir des données cinétiques des processus étudiés. Les profils verticaux simulés de température, d'oxygène, de CO2 et de CH4 sont bien reproduits. Ce modèle pose les bases d'un outil opérationnel de modélisation pour la retenue de Petit Saut ainsi que pour d'autres réservoirs en milieu tropical.
Guérin, Frédéric. "Emission de gaz à effet de serre (CO2,CH4) par une retenue de barrage hydroélectrique en zone tropicale (Petit-saut, Guyane française) : expérimentation et modélisation." Toulouse 3, 2006. https://tel.archives-ouvertes.fr/tel-00079947.
Full textThe emissions of carbon dioxide (CO2) and methane (CH4) and the carbon cycle in the Petit-Saut reservoir and in the Sinnamary River (French Guiana) were studied with an aim of developing a coupled physical/biogeochemical model. The development of this model required the study of three processes controlling these emissions: (i) CO2 and CH4 production during the mineralization in anoxic condition of organic matter (OM) from soils and plants, (ii) aerobic CH4 oxidation in the water column of the lake and (iii) the processes involved in gas exchange at the air-water interface. Over 10 years, atmospheric emissions were shown to be very significant, in particular the first three years having followed the reservoir impoundment and then decreased with time. While 50% of the CO2 emissions take place at the surface of the lake, the emissions of CH4 are mainly localized downstream from the turbines. The atmospheric emissions result from the degradation of OM (soil and biomass originating from the tropical forest) flooded during impoundment and their reduction with time rises from the exhaustion of the OM stock. 10 years after impoundement, 20% of the carbon stock were mineralized and emitted to the atmosphere in the form of CO2 and of CH4. Aerobic CH4 oxidation transforms more than 95% of the CH4 diffusing upward from the hypolimnion into CO2 in the water column of the lake and 40% of the CH4 entering the river downstream of the dam. In the whole Petit Saut system, this process is responsible for the oxidation of 90% of the produced CH4 and 30% of the total CO2 emissions. The CH4 and CO2 which reach the water surface of the reservoir and of the river downstream of the dam are emitted to the atmosphere by diffusive flux. The study of this process of gas transfer to the interface air-water shows that, in tropical environment, diffusive fluxes are enhanced by the elevated temperatures and the rainy phenomena. The model is based on the hydrodynamic model SYMPHONY 2D and the biogeochemical model developed during this study starting from the kinetic data of the studied processes. The simulated vertical profiles of temperature, oxygen, CO2 and CH4 are well reproduced. This model poses the bases of an operational tool of modeling for the Petit-Saut reservoir like for other reservoirs in tropical environments
Trepanier, Cheralee. "L’impact de l’instauration de la centrale hydroélectrique Caribou Falls sur la communauté One Man Lake située dans le nord-ouest de l’Ontario." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/38662.
Full textCailleaud, Emilie. "Cycles du carbone et de l’azote et émissions de gaz à effet de serre (CH4, CO2 et N2O) du lac de barrage de Petit Saut et du fleuve Sinnamary en aval du barrage (Guyane Française)." Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30379.
Full textInland waters are sources of methane (CH4), carbon dioxide (CO2) and nitrous oxide (N2O). In order to define their importance in the global balance of greenhouse gases (GHG) emissions, numerous studies have been conducted to quantify the different fluxes of the carbon and nitrogen browsing them. These fluxes are modified by the creation of dams on river beds. Few studies present full carbon and nitrogen balances (inputs, outputs, fluxes to the atmosphere and sequestration) for reservoirs, and they concern only boreal and temperate ecosystems. The creation of a dam floods organic matter (OM) (soils and forests), which is rapidly degraded the first years following the impoundment and thereafter more slowly. The state of degradation of the OM and the main source of GHG in a reservoir nearly 20 years after impoundment are often unknown. The study conducted 18 years after the impoundment of the Petit Saut Reservoir (French Guiana) is the first study where the main elements of carbon and nitrogen cycles of an hydroelectric reservoir, and its river downstream, located in equatorial climate and which creation resulted in the flooding of primary forest, are studied nearly 20 years after impoundment. This study is based on (i) a monthly measurement of water quality and carbon and nitrogen concentrations upstream, in, and downstream of the reservoir, (ii) measurements and/or calculations of the different fluxes of GHG through the atmosphere, (iii) data of the isotopic signature and of the state of degradation of OM upstream, in, and downstream of the reservoir, (iv) sediments and 1994’s flooded tree trunks sampling and (v) incubations of downstream river water, sediments and tree trunks from the reservoir. All the data collected during the 12 months of campaigns carried out in 2012 - 2013 allowed us to determine that (i) flooded soils are still significant sources of GHG unlike flooded tree trunks, (ii) in the reservoir 84 % of CH4 emissions and 51 % of CO2 emissions occur in the littoral zone (< 10 m depth), (iii) 54 % of the CO2 produced in the river downstream of the dam come from the degradation of the OM provided by the reservoir. This study also allowed us to achieve carbon and nitrogen balances in Petit Saut and emission balance of each GHG emitted (CH4, CO2, N2O) nearly 20 years after impoundment
Cisse, Coumba. ""Vivre à l'ombre proche" du barrage de Manantali : les formes de représentations sociales des impacts dans les campements et les villages environnants." Thesis, Paris 8, 2016. http://www.theses.fr/2016PA080063/document.
Full textIn 1988 the Senegal River basin in Mali has witnessed the building of a dam by the Organization for the Development of the Senegal River (OMVS) in French. The main objective is the production of electric power shared between: Mali (52%), Senegal (33%) and Mauritania (15%). But the birth of this dam has deeply disrupted the organization and functioning of all the waterside’s areas. The territories around the Bafing, the river where the dam is localized, are now strictlydivided by the reservoir between an upstream and downstream portions. This artificial lake has created new types of spatial organization with the recent settlements of 25 fishing camps.This new economy has created a pull factor for professional fishermen coming from the central regions of Mali, particularly Mopti and Segou. The lake hence becomes a huge fish reserve with larger sizes compared to those caught in the Bafing, the Bakoye or even in the Senegal River. In the upstream areas of the dam, fishing has become the first business activityencouraging local young farmers and herdsmen towards an unlikely professional retraining.Fishermen settlements occupy former site of displaced villages due to the dam construction. Thirty-three villages have been relocated downstream of the dam in the lands of existing hamlets. This cohabitation disruptstraditional land use and leads to social strains
Books on the topic "Barrage hydroélectrique"
Kialo, Paulin. Un projet de barrage hydroélectrique au Gabon: L'affaire Kongou. Paris: L'Harmattan, 2013.
Find full textReports on the topic "Barrage hydroélectrique"
Götz, Konrad, Ueli Haefeli, and Daniel Meierhans. Synthèse thématique «Force hydraulique et marché» du PNR «Energie». Swiss National Science Foundation (SNSF), December 2019. http://dx.doi.org/10.46446/publication_pnr70_pnr71.2019.6.fr.
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