Artigos de revistas: "Stockage de energie"

1

Kouhila, Mounir, Abdelhamid Belghit e Michel Daguenet. "Approche Expérimentale des Courbes de Sorption de la Menthe en vue d’un Séchage par Energie Solaire". Journal of Renewable Energies 2, n.º 1 (30 de junho de 1999): 61–68. http://dx.doi.org/10.54966/jreen.v2i1.930.

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Les teneurs en eau d’équilibre d’un produit à sécher sont indispensables lors d’une opération de stockage et de séchage solaire par convection forcée. Ces valeurs sont souvent relevées à partir des courbes dites isothermes de sorption. Ainsi, le présent travail se propose de déterminer expérimentalement les isothermes de sorption de la menthe (mentha pulegium) à l’aide de la méthode des solutions de sels saturés. L’expérience est réalisée pour quatre valeurs de la température de travail : 25 °C, 30 °C, 40 °C, et 50 °C.

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Leclerc, Robin. "Le carbone des sols et son public". Réseaux N° 244, n.º 2 (29 de maio de 2024): 83–115. http://dx.doi.org/10.3917/res.244.0083.

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Dans un contexte de territorialisation des politiques climatiques, le stockage du carbone dans les sols est une nouvelle dimension dont doivent tenir compte les collectivités dans l’élaboration de leur Plan Climat Air Energie Territoire. Dans cet article, nous proposons de nous intéresser à la co-construction du problème du carbone des sols et de son public local, en prenant le cas d’Aldo, outil développé par l’ADEME pour accompagner les collectivités. Notre analyse montre comment sa conception cristallise un public et un cadrage du problème « carbone des sols », que les concepteurs délimitent à travers le choix des données et des scripts. L’utilisation effective d’Aldo par un public d’ingénieurs carbone témoigne d’un intérêt allant au-delà de ce public anticipé, en deçà de la mise en œuvre du Plan Climat. Nous analysons le produit de cette rencontre, ainsi que ce que signifie la prise en compte de ce public dans les évolutions les plus récentes de l’outil.

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Derai, Sid Ali, e Abdelhamid Kaabeche. "Modélisation et dimensionnement d’un système hybride Eolien/ Photovoltaïque autonome". Journal of Renewable Energies 19, n.º 2 (9 de janeiro de 2024): 265–76. http://dx.doi.org/10.54966/jreen.v19i2.566.

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Une méthodologie d’optimisation et de dimensionnement des systèmes hybrides photovoltaïque/éolien avec batteries de stockage est présentée dans ce papier. Cette méthodologie est basée sur les concepts de la probabilité de perte d’énergie (DPSP) comme critère technique et du coût du kilowattheure minimal comme critère économique. La simulation est effectuée sur une période d’analyse d’une année, en utilisant les données horaires de l’irradiation solaire sur le plan horizontal, de la vitesse du vent et de la température ambiante enregistrées au sein du CDER, (Centre de Développement des Energies Renouvelables). Ces données nous ont permis de calculer la puissance horaire produite conjointement par l’aérogénérateur et le générateur photovoltaïque et ce, sur la même période d’analyse. Un profil de consommation journalier type a été adopté, il est supposé identique pour tous les jours de l’année et correspond au profil de consommation rencontré généralement dans les sites isolés.

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Tort, V., T. Schneider e J. L. Daroussin. "Évaluation de l'impact radiologique du radon associé au stockage". Radioprotection 34, n.º 4 (outubro de 1999): 491–503. http://dx.doi.org/10.1051/radiopro:1999113.

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Métivier, H. "Le stockage définitif des déchets radioactifs et la radioprotection". Radioprotection 43, n.º 1 (janeiro de 2008): 117–28. http://dx.doi.org/10.1051/radiopro:2007054.

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Brosse, E. "Stockage géologique du CO2et de l’énergie en aquifères salins profonds". Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles 66, n.º 1 (janeiro de 2011): 3–8. http://dx.doi.org/10.2516/ogst/2011007.

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Mercadal, Georges. "La gestion des déchets radioactifs à vie longue : confiés à l’argile ou bien gérés par la société ?" Radioprotection 54, n.º 3 (julho de 2019): 169–73. http://dx.doi.org/10.1051/radiopro/2019027.

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La révision du Plan national de gestion des déchets et matières radioactives (PNGMDR) exige l’organisation d’un débat public par la Commission nationale du débat public (CNDP). C’est l’occasion de rappeler les résultats du débat public de 2005–2006, notamment en ce qui concerne le stockage géologique profond des déchets radioactifs ultimes à vie longue. Une alternative au projet CIGEO avait été proposée lors de ce débat : « Confiés à l’argile vs. gérés par la société ». Cette proposition alternative n’avait pas été retenue à l’époque pour différentes raisons. Cet article a pour but de revisiter cette alternative et sa pertinence encore aujourd’hui dans le présent débat national.

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Lecourtier, J. "Préambule : Le stockage du CO2au service de la lutte contre le changement climatique". Oil & Gas Science and Technology – Revue de l’Institut Français du Pétrole 65, n.º 4 (julho de 2010): 529–32. http://dx.doi.org/10.2516/ogst/2010011.

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Repussard, Jacques. "Que faire des déchets TFA issus des opérations de démantèlement des sites nucléaires ? Les sujets de débat". Radioprotection 54, n.º 3 (julho de 2019): 163–67. http://dx.doi.org/10.1051/radiopro/2019029.

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Les déchets TFA issus des opérations de démantèlement des sites nucléaires constituent une des questions importantes du grand débat national lancé par la Commission Nationale du Débat Public dans le cadre de la révision du Plan National de Gestion des Matières et Déchets Radioactifs. Dans leur définition actuelle, ces déchets TFA présentent des volumes considérables qui excèdent les capacités actuelles de stockage alors que les enjeux de radioprotection sont modestes par rapport à ceux posés par les déchets de haute activité à vie longue. Cet article analyse les tenants et aboutissants de la gestion des déchets TFA issus du démantèlement et propose une approche mesurée basée sur une analyse appropriée de l’ensemble des enjeux.

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10

Zahar, Alexander. "Collective Progress in the Light of Equity Under the Global Stocktake". Climate Law 9, n.º 1-2 (27 de abril de 2019): 101–21. http://dx.doi.org/10.1163/18786561-00901006.

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The Global Stocktake compels states periodically to focus on the Paris Agreement’s ultimate aims. Without it, each state’s attention would have been fixated on its own Nationally Determined Contribution and little else. The Paris Rulebook clarifies how the stocktaking mechanism is to function—in all but one respect: although the rules keep the emphasis squarely on “collective progress” as the proper object of the stocktake’s assessment, the text is ambiguous on whether its implied opposite—individual state progress—is to be excluded from the assessment. The ambiguity rides mainly on the notion of “equity”—a term as dutifully inserted into key passages of the Rulebook as its explanation is studiously avoided. Whatever the negotiators may have intended in this respect, an objective construction of the Rulebook shows that an assessment of the individual progress of states is permitted to occupy a substantial part of the stocktaking process, except when it comes to formal reporting on the stocktake’s outputs. The non-exclusion of individual assessment from the dialogue that powers the stocktake means that, while the ideology of “national self-determination” may have succeeded in turning out an Article 15 Committee of unprecedented blandness, it has neglected to defend its flanks in the Global Stocktake, making for an unpredictable, yet potentially useful process.

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Hoorelbeke, J. M. "De la nécessité d’une recherche de proportionnalité des solutions de gestion des déchets radioactifs à leur dangerosité". Radioprotection 53, n.º 3 (julho de 2018): 167–73. http://dx.doi.org/10.1051/radiopro/2018028.

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Une grande part des déchets radioactifs français disposent de filières d’élimination opérationnelles ou en cours de développement. Néanmoins, certains déchets interpellent aujourd’hui sur les modalités d’une gestion à long terme justement proportionnée à leur dangerosité, qu’il s’agisse des grands volumes de déchets de très faible activité qui seront produits par les démantèlements à venir ou de déchets aux caractéristiques intermédiaires, comme les déchets dits de faible activité à vie longue. La recherche de solutions de stockage s’inscrivant dans l’approche graduée recommandée par l’AIEA passe par une meilleure compréhension de la dangerosité des différents déchets et par une analyse des justes besoins en confinement et en isolement vis-à-vis de l’homme et de la biosphère. À ces besoins, pourront être associés des caractéristiques de barrières de long terme et des durées sur lesquelles les performances de ces barrières pourront être raisonnablement évaluées.

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Wang, Chun-Kai, e Chien-Ming Lee. "Power System Decarbonization Assessment: A Case Study from Taiwan". Energies 17, n.º 4 (12 de fevereiro de 2024): 859. http://dx.doi.org/10.3390/en17040859.

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The first global stocktake (GST) at 2023 UN Climate Change Conference (COP28) pointed out that accelerating the phasing down of fossil fuels has become an important mitigation policy to maintain a maximum temperature limit of 1.5 °C. The optimal power portfolio for achieving Taiwan’s net-zero emissions by 2050 is evaluated from the perspective of sustainable development. This study is enhances the 2021 research findings of Wang et al. on the sustainable power model, incorporating homogenized cost and technical constraints for empirical analysis. The results indicated that renewable energy sources play a pivotal role in achieving net-zero emissions. Gas power generation requires careful consideration, including early decommissioning or the adoption of carbon capture and storage (CCS) technology to prevent carbon lock-in and compete with hydrogen energy technology. Notably, coal combined with CCS technology offers a viable option for a cost-effective roadmap for a decarburized power generation portfolio by 2050, serving as a reference for national planning strategies for promoting net-zero emissions.

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13

Triyaswati, Hilda, e Ive Emaliana. "EQUAL GENDER REPRESENTATION IN EFL INSTRUCTIONAL MATERIALS DURING EMERGENCY REMOTE LEARNING". International Journal of Humanity Studies (IJHS) 5, n.º 1 (13 de outubro de 2021): 109–19. http://dx.doi.org/10.24071/ijhs.v5i1.3774.

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Gender representations in EFL instructional materials can be given less attention amid covid-19 pandemic because there are abundant resources offered in online learning. The current paper aims to investigate a measurement to determine whether males and females are portrayed equally in EFL instructional materials, as proposed in RUU No. 81 A of 2013 the Republic of Indonesia's Ministry of Education and Culture which stated: “The curriculum should be oriented toward the production of good manners and a fair attitude, with a focus on gender equality". Employing library research method, researchers attempt to achieve this by examining ten experts’ theories which postulate equal representations of gender in EFL textbooks, namely (Dominguez 2003), Cohen, L Manion (1992), (Porreca 1984), Stockdale (2006), (Sovič and Hus 2015), (Hall 2014), (Gharbavi and Mousavi 2012), Holmqvist and Gjorup (2006), Nofal and Qawar (2015), and Chung (2014). The findings from the analysis indicate that gender representations in learning materials measured through language items and illustrations showed inequal and further complete sub dimensions descriptions are elucidated in the discussions. Pedagogical implications of selecting and developing instructional materials, which represent gender equality, are explored more to foster effective emergency remote learning

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Guillén Bolaños, Tania, Jürgen Scheffran e María Máñez Costa. "Climate Adaptation and Successful Adaptation Definitions: Latin American Perspectives Using the Delphi Method". Sustainability 14, n.º 9 (29 de abril de 2022): 5350. http://dx.doi.org/10.3390/su14095350.

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Across the world, policies and measures are being developed and implemented to reduce the risks of climate change and adapt to its current and projected adverse effects. The Paris Agreement established the global stocktake to evaluate the collective progress made on adaptation. Nevertheless, various challenges still exist when evaluating adaptation progress, among which is the lack of standard definitions to support evaluation efforts. Therefore, we investigated the views of experts regarding the definitions of adaptation given by the Intergovernmental Panel on Climate Change (IPCC) and the definition of successful adaptation by Doria et al., with a focus on Latin America. Using the Delphi method, we obtained relevant knowledge and perspectives. As a result, we identified a high level of consensus (85%) among the experts regarding the IPCC’s definition of climate adaptation. However, there was no consensus on the definition of successful adaptation. For both definitions, we present the elements on which the experts agreed and disagreed, as well as the proposed elements that could improve the definitions to support adaptation evaluation efforts. Additionally, we introduce a list of criteria and indicators that could improve the evaluation of adaptation at different management levels and facilitate the aggregation of information on adaptation progress.

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15

Abdulla, Ahmed, Fabian JE Telschow, Julia Dohner, Ralph F. Keeling, Armin Schwartzman e David G. Victor. "Atmospheric verification of emissions reductions on paths to deep decarbonization". Environmental Research Letters 18, n.º 4 (14 de março de 2023): 044003. http://dx.doi.org/10.1088/1748-9326/acbf69.

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Abstract A central challenge for sustaining international cooperation to cut global greenhouse gas emissions is confidence that national policy efforts are leading to a meaningful impact on the climate. Here, we apply a detection protocol to determine when the measurable signal of atmospheric CO2 can be distinguished from the noise of the carbon cycle and uncertainties in emission trends. We test that protocol with a database of 226 emission mitigation scenarios—the universe of scenarios vetted by the Intergovernmental Panel on Climate Change. These scenarios are descriptive of ‘baseline’ trajectories of emissions trends in the absence of new policies along with trajectories that reflect substantial policy efforts to stop warming at 1.5 °C–2 °C above pre-industrial levels, as embodied in the Paris Agreement. The most aggressive mitigation scenarios (i.e. 1.5 °C) require 11–16 years to detect a signal of demonstrable progress from the noise; 2 °C scenarios lengthen detection by at least a decade. As more climate policy analysts face the reality that goals of 1.5 °C–2 °C seem infeasible, they have developed ‘overshoot’ scenarios with emissions that rise above the agreed goal and then, later on, fall aggressively to achieve it. These pathways come at the political cost of a 1–2 decade delay in detection, even for the 1.5 °C scenarios. The Paris Agreement requires a global ‘stocktake’ that interrogates national mitigation efforts; our results suggest that this effort must grapple with the question of when the world can gain confidence that the diplomacy on climate is demonstrably making an impact.

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Brown, D. E. "Biocatalysis in non-conventional media. Edited by J. Tramper, M. H. Vermuë, H. H. Beeftink & U. von Stockar, Elsevier Science Publishers, Amsterdam, 1992, xvi + 764 pp. price US$ 290.50, Dfl 465.00, £169.09. ISBN 0-444-89046-7". Journal of Chemical Technology AND Biotechnology 62, n.º 1 (janeiro de 1995): 106. http://dx.doi.org/10.1002/jctb.280620123.

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17

Preston, Brian. "Can litigation assist in implementing the outcome of the global stocktake?" Journal of Energy & Natural Resources Law, 5 de setembro de 2023, 1–32. http://dx.doi.org/10.1080/02646811.2023.2244306.

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Melo, Joana, Timothy Baker, Dirk Nemitz, Shaun Quegan e Guy Ziv. "Satellite-based global maps are rarely used in forest reference levels submitted to the UNFCCC". Environmental Research Letters, 8 de fevereiro de 2023. http://dx.doi.org/10.1088/1748-9326/acba31.

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Abstract The Earth Observation (EO) community is coordinating a range of activities in support of the Global Stocktake. One objective is to enhance the uptake of satellite-based global-scale maps (hereafter ‘EO products’) in national GHG inventories submitted to the UNFCCC. To measure progress towards this objective, we compile information on the use of EO products on land cover, fire, and above-ground biomass to derive carbon flux estimates in forest reference levels from 56 tropical countries submitted to the UNFCCC between 2014-2022. The Global Forest Change (GFC) was the only EO product used to measure land extent and change, and was used by almost half the countries. Only two countries used existing EO products for fire mapping. Four countries used biomass maps, although only indirectly, such as for comparing with biomass estimates from field plot measurements or with IPCC defaults. The uptake is limited but improved the MRV capacity of 22 countries. The relatively high uptake of the GFC demonstrates the importance of meeting essential conditions in the IPCC guidance when developing EO products, including conditions on spatial and temporal resolution, temporal coverage and consistency, and the flexibility to adapt to biophysical thresholds in national definitions. The limited use of other global land EO products underlines the need for developers of EO products to interact with groups responsible for GHG inventories and experts familiar with IPCC guidance so that their products are suitable for national reporting, and thus contribute to more complete aggregated estimates in the Global Stocktake.

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D, Suchitra, Rajarajeswari R e Dhruv Singh Bhati. "A cost effective accumulator management system for electric vehicles". International Journal of Emerging Electric Power Systems 21, n.º 3 (27 de julho de 2020). http://dx.doi.org/10.1515/ijeeps-2019-0227.

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AbstractAn accumulator or battery is an energy storage cramped in an adaptable stockade. Lithium-ion batteries are commonly used in hybrid electric vehicles (HEV) and battery operated electric vehicles (BOEV) due to its eco-friendliness and increased efficiency. To maintain lithium batteries in the safe operating region and also to perform tasks like cell balancing, preventing thermal runaway, maintain the state of health, an effective battery management system (BMS) is required. The BMS should also communicate effectively between host devices and battery packs. This paper proposes a reliable, modular and cost-efficient BMS, which will emanate an alert when a fault occurs and thus preventing the battery from damage. An efficient control strategy has been proposed for charging and discharging of the battery pack. The thermal analysis of the lithium-ion battery used in this work is simulated using battery design studio (BDS) with the inclusion of a self-discharging effect. The proposed hardware setup also provides a provision for on-board diagnosis (OBD) and logging in the accumulator management system (AMS) to constantly monitor the cell parameters like voltage, current, and temperature. The live data display of AMS working is also shown during abnormal and normal conditions. Also, an attempt is made to use the design of proposed AMS for HEV.

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Hunka, Neha, Maurizio Santoro, John Armston, Ralph Dubayah, Ronald McRoberts, Erik Næsset, Shaun Quegan et al. "On the NASA GEDI and ESA CCI biomass maps: Aligning for uptake in the UNFCCC global stocktake". Environmental Research Letters, 9 de novembro de 2023. http://dx.doi.org/10.1088/1748-9326/ad0b60.

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Abstract Earth Observation data are uniquely positioned to estimate forest aboveground biomass density (AGBD) in accordance with the United Nations Framework Convention on Climate Change (UNFCCC) principles of `transparency, accuracy, completeness, consistency and comparability’. However, the use of space-based AGBD maps for national-level reporting to the UNFCCC is nearly non-existent as of 2023, the end of the first Global Stocktake (GST). We conduct an evidence-based comparison of AGBD estimates from the NASA Global Ecosystem Dynamics Investigation (GEDI) and ESA Climate Change Initiative (CCI), describing differences between the products and National Forest Inventories (NFIs), and suggesting how science teams must align efforts to inform the next GST. Between the products, in the tropics, the largest differences in estimated AGBD are primarily in the Congolese lowlands and east/southeast Asia. Where NFI data were acquired (Peru, Mexico, Lao PDR and 30 regions of Spain), both products show strong correlation to NFI-estimated AGBD, with no systematic deviations. The AGBD-richest stratum of these, the Peruvian Amazon, is accurately estimated in both. These results are remarkably promising, and to support the operational use of AGB map products for policy reporting, we describe targeted ways to align products with Intergovernmental Panel on Climate Change (IPCC) guidelines. We recommend moving towards consistent statistical terminology, and aligning on a rigorous framework for uncertainty estimation, supported by the provision of open-science codes for large-area assessments that comprehensively report uncertainty. Further, we suggest the provision of objective and open-source guidance to integrate NFIs with multiple AGBD products, aiming to enhance the precision of national estimates. Finally, we describe and encourage the release of user-friendly product documentation, with tools that produce AGBD estimates directly applicable to the IPCC guideline methodologies. With these steps, space agencies can convey a comparable, reliable and consistent message on global biomass estimates to have actionable policy impact.

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Artigos de revistas sobre o tema "Stockage de energie"

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