FRCH - I+D+i - GEMyS::Artículos publicados

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    Determination of cracks in wind turbine blades by simulating sensors through finite element studies
    (Atena Editora, 2025-01) Monzón, Tomás Facundo; Anton Cabral, Lautaro Agustín; Bejarano, Pablo Silvestre
    The importance of wind energy is increasing due to its relative share in the global market. Especially in Argentina, projections are important, which not only concerns operation, but also maintenance tasks. These tasks can have a great impact on productivity if stop times are significantly prolonged. Based on several investigations carried out during two years, we continued with the study of a three-dimensional model of a wind turbine blade, using the finite element analysis technique, to determine the presence of cracks in the part by means of the analysis of deformations due to the wind forces to which it is subjected. The detections of the changes in the mechanical behavior of the blades will allow us to consider that they can be monitored in real time and determine if they present anomalies due to failures in their structure. In addition, it is intended as one of the purposes to deter mine the characteristics such as the shape of the crack which according to this can help the optimization and implementation of a maintenance plan.
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    Algunas consideraciones sobre el potencial energético de corrientes de mareas en el litoral de la provincia de Chubut, Argentina
    (Organización Latinoamericana de Energía, 2019-09) Lifschitz, Ana Julia; De Cristófaro, Norma; Coiro, Doménico P.
    En este trabajo se describen las características del fenómeno de las mareas en el litoral chubutense y se analizan algunos sitios adecuados para el potencial aprovechamiento de la energía de estas y sus corrientes asociadas. Además, se revisionan los proyectos presentados en la Provincia de Chubut y se efectúa una evaluación preliminar del recurso energético de los Golfos chubutenses. Se considera la posibilidad del aprovechamiento energético de las mareas transformando el movimiento de desplazamiento en un movimiento de rotación por medio de una turbina hidrocinética. Esta energía puede ser extraída de manera análoga a la de la energía eólica, por lo tanto, no es necesario construir una represa, de este modo se evitan los inconvenientes ambientales y económicos que esta representa.
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    Residuos de las aspas de los aerogeneradores ¿un problema futuro?
    (Gerencia Ambiental, 2023-06) Di Nanno, María Pía; Barisone, Manuela Alejandra; Menéndez, Gustavo
    Ya sea porque se produce la necesidad de reemplazar algún componente durante la construcción, operación y mantenimiento o en la etapa de desmantelamiento del parque, eventualmente surgirá la necesidad de evaluar cómo y dónde disponer los residuos generados por las aspas de los aerogeneradores. Cuál es la estimación de la generación prevista para la Argentina.
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    Initial estimate of kinetic energy of tidal currents in the province of Chubut, Argentina
    (European Wave and Tidal Energy Conference, 2022-04-30) Lifschitz, Ana Julia; Coiro, Domenico P.; Troise, Giancarlo; Giaquinta, Horacio; Lazcano, Fabio Miguel; De Cristófaro, Norma
    This work is a preliminary study to find some sites for the potential use of tidal stream energy and their associated currents in the Chubut coast. In addition, an evaluation of the energy resource of the Chubut Gulfs is made. Among other possible technical solutions, in this work the exploitation of tidal energy is based on the use of hydrokinetic turbines, which transform the stream translational kinetic energy into rotational kinetic energy available to feed an electrical generator. The energy can be extracted analogously to that of wind energy; therefore, it is not necessary to build a dam, avoiding the environmental and economic disadvantages it represents. The total annual theoretically exploitable kinetic energy of the whole cross section at San José Gulf was estimated as 1,006 GWh/year, but assuming a device conversion efficiency of about 45%, this lowered to 453 GWh/year. Considering also some practical limitations due to the installation of multiple devices in a hypothetical farm layout, the annual available energy production for three turbines rows in the inlet of San José Gulf was 61 GWh/year. Such results were based on a preliminary analysis using a relatively small amount of data, which can give an initial estimate of the expected available resource in the area of interest. Future experimental investigations may improve the accuracy of the resource evaluation. Lower tidal kinetic energy was found in the Nuevo Gulf and at the Chubut River mouth, thus, a system to increase the flow should be considered.
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    Etapa de abandono de parques eólicos on shore: ¿qué deberíamos ir gestionando?
    (Gerencia Ambiental, 2019-05) Barisone, Manuela Alejandra; Di Nanno, María Pía
    Es un estudio de impacto ambiental, generalmente, se asume que la vida útil de los parques eólicos ronda los 20-25 años (SNH, 2013; Stecky-Efantis; 2013). De acuerdo a Stecky-Efantis (2013), la vida útil de los parques en general coincide con la duración de los contratos FIT (feed in tariff), con lo cual el vencimiento de los mismos podría disparar el desmantelamiento de varios centros de generación de energía.
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    Energías renovables en Argentina : vinculación con los acuerdos internacionales y regionales e implicancias de políticas públicas nacionales
    (Gerencia Ambiental, 2018-07) Barisone, Manuela Alejandra
    Actualmente nos encontramos en un contexto mundial en el que una de las principales metas de políticas públicas de los países es el fomento de las energías renovables y de mecanismos limpios. Existe un consenso internacional acerca de favorecer el desarrollo del sector, impulsado por organismos internacionales y por países, en el marco de acuerdos y conferencias, y plasmados también en objetivos y recomendaciones de políticas como los del SEFORALL. (...) El objetivo de este trabajo es entonces presentar un resumen acerca de la vinculación del desarrollo de energías renovables en Argentina con los acuerdos internacionales regionales y las implicancias de estos acuerdos en las políticas públicas nacionales.
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    Problemáticas en la gestión de acumuladores de plomo ácido: el caso de Chubut
    (Gerencia Ambiental, 2016-11) Di Nanno, María Pía; Barisone, Manuela Alejandra; Novoa, Santiago
    Las baterías usadas de los vehículos, también llamadas acumuladores de plomo ácido, son consideradas residuos peligrosos de acuerdo a la normativa vigente.(…) Las baterías de plomo ácido constituyen un residuo peligroso particular en el sentido de que poseen valor por su factibilidad de reciclado. Este “valor intrínseco” de la batería usada, ya sea por la posibilidad de reúso a nivel individual, como por la posibilidad de compra por personas no habilitadas, implica complejidades relevantes a la hora de gestionarlas de una manera ambientalmente adecuada y en el marco de la ley.
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    Which cooking and heating fuels are more likely to be used in energy-poor households? Exploring energy and fuel poverty in Argentina
    (Elsevier, 2021-12-29) Burguillo Cuesta, María Mercedes; Barisone, Manuela Alejandra; Juez-Martel, Pedro
    Energy poverty in emerging countries has mainly been analysed in the literature as a problem of energy supply accessibility. However, this analysis is too simple, as in many of these countries there can be a problem of energy accessibility that is not necessarily linked to an insufficiency of energy supply but is related to the use of certain types of fuels or facilities to meet the energy needs of the household. Moreover, what can explain the choice of these fuels can also be an affordability energy problem, and this has been scarcely treated on energy poverty papers focused on developing countries. This work aims to shed light on this literature, analysing both the affordability and the accessibility energy problem of Argentine households. To do so, we use micro-data from an expenditure-survey. First, we measure the energy affordability problem by calculating the Boardman indicator. Second, we estimate two logit models to show how likely it is that the affordability energy problem explains the choice of facilities for cooking and heating that can indicate an energy accessibility problem. Third, to refine the results of our estimations, we calculate the ROC curves to measure the levels in which energy-poor and non-energy-poor household are better identified than with the standard identification of logit models. The results show that it is more probable that households characterized by monetary energy poverty use facilities that indicate an energy accessibility problem than households that are not energy poor.