Design of a thermoelectric generator with fast transient respose

Thermoelectric modules are currently used both in Peltier cooling and in Seebeck mode for electricity generation. The developments experienced in both cases depend essentially on two factors: the thermoelectric properties of the materials that form these elements (mainly semiconductors), and the external structure of the semiconductors. Figure of Merit Z is currently the best way of measuring the efficiency of semiconductors, as it relates to the intrinsic parameters of the semiconductor: Seebeck coefficient, thermal resistance, and thermal conductivity. When it comes to evaluating the complete structure, the Coefficient of Performance (COP) is used, relating the electrical power to the thermal power of the module. This paper develops a Thermoelectric Generator (TEG) structure which allows minimising the response time of the thermoelectric device, obtaining short working cycles and, therefore, a higher working frequency.Preprin

Caracterización de Skutterudites como material termoeléctrico desarrollado con nanotecnología.

In this research work it has been implemented with the semiconductor characterization, base basically in the thermoelectric structure develop with Skutterudite nanostructures, under different manufacturing process, specially compounds from the type Co-Ni-Sb, by developing and study of its intrinsic characteristics related to thermoelectric properties as the figure of merit, by the use of special design tooling for such purpose, doing analogies of their behavior with classic materials. It is also shown the specific instrumentation. In chapter 1 it is shown the general actual stage of the semiconductor materials use in Thermoelectric and related measurement systems.The chapter 2 has been focus for the introduction of different model series of monomodule and the basic structure of the thermoelectric system with the mainly objective to know the behavior of the pellets and different simulation versions. The continues model base its development in the use of the average parameters taken from different concepts as temperature functions and the semiconductor material. With the utilization of models base in finite elements the software was simplify as a support, as it is much more easier to include parameters in each of the elements that the material is divide.In chapter 3 it has been develop the study of some thermoelectric compounds base in BiTe. It has been develop the characterization of a compound base in (Bi2Te3)1-xy( Sb2Te3)x(Sb2Se3)y that pretends exploit the BiTe characteristics at room temperatures about 300K. Previously it has been develop some theoretical concepts that will explain the different techniques in the development of the thermoelectric materials as the design in 2D quantum well that has multiple advantages regarding the Figure of Merit goals higher than with bulk materials. To finish in chapter 3, it was study a mono-module base in the study materials.In chapter 4 the material Skutterudite has been develop as an experimental base that conform part of this thesis. The Skutterudite system possess basic conditions to obtain a high Figure of Merit Z. The Skutterudite are forming covalent structures with low coordination index between atoms in the big vacuum interact that exist. New compounds can be form from new atoms added in vacuum interact, which implements in the optimization of the thermoelectric characteristics. It has been study Skutterudite solutions base in compounds from type CoSb3-xAsx for temperature ranges up to 700K.In the chapter 5 it was develop few experiments related to the Skutterudite material, prepare with nanotechnology. Is the core of this thesis and has been divide in tree basic experiments. Study of the material Co-Sb with nano-structure. Study of the material Co-Sb were the Co is replace by Ni to study its thermoelectric characteristics and the study of the mono-module constructed with the study materials. It was also study a thermoelectric mono-module according to the thermoelectric study materials. As a main target we have use the type of material CoSb3 (M1), which acts as n material and Zn4Sb3 that works as p material.The obtained results could be the base for the study of the materials also base in CoSb3, but replacing its structure for new elements. The Nb (Niobio), is an element that was study and works as a dope agent type p replacing the Co atoms. The electrical conductivity could be increase in the final compound but some research lines will confirm its well use. Another research task that could lid from this thesis study is the use of thermoelectric structures (thermoelectric devices) base in the material being study.The microprobe tool, has been develop in special way to use as a research tool for the thesis expose. Is a very useful tool that has been use to measure the Seebeck coefficient in the materials, and the electrical conductivity. The microprobe is basically form by heated test point that is positioned over a sample device. The end of the pointer is connected to a thermocouple normally type T, Cu-CuNi ; that measures the temperature call T1. The sample is always place over a good electrical and thermal contact, which is also connected to a thermocouple to measure the temperature T0. By the combination the wires Cu-Cu and CuNi-CuNi, from the thermocouples it is possible to obtain the voltage that will be name U0 and U1 that are well process to obtain the Seebeck coefficient.En este trabajo de investigación se ha implementado la caracterización del semiconductor en la que se basa la estructura termoeléctrica desarrollada con Skutterudites nanoestructuradas bajo diferentes procesos de fabricación, en concreto compuestos del tipo Co-Ni-Sb, realizando un estudio de sus características intrínsecas relacionadas con las propiedades termoeléctricas como es la figura de mérito mediante herramientas diseñadas para ese propósito haciendo analogías con el comportamiento de materiales clásicos. También se muestra el desarrollo de instrumental específico.El capítulo 2 se ha dedicado a la presentación de una serie de modelos del monomódulo y de la estructura básica del sistema termoeléctrico con el objetivo de conocer el comportamiento del pellet ante diferentes visiones de simulación. El modelo continuo basa su desarrollo en la utilización de los parámetros medios tomados desde diferentes concepciones en función de la temperatura y sobre todo el material semiconductor. Con la utilización de modelos basados en elementos finitos se simplifica la realización de software de soporte ya que es relativamente más fácil introducir parámetros en cada uno de los elementos en que se divide el material.En el capítulo 3 se ha desarrollado el estudio de algunos compuestos termoeléctricos basados en el BiTe. Se ha realizado la caracterización de un compuesto basado en (Bi2Te3)1-x-y(Sb2Te3)x(Sb2Se3)y que intenta explotar las características del BiTe a temperaturas ambientales (sobre 300K). Previamente se ha desarrollado una serie de conceptos teóricos que explican diferentes técnicas en el desarrollo de materiales termoeléctricos como el diseño en 2D quantum well que conlleva multitud de ventajas en cuanto se consiguen figuras de mérito superiores que en bulk. Por último, en el capítulo 3 se ha estudiado un monomódulo en base a los materiales estudiados.En el capítulo 4 se ha desarrollado el material Skutterudite como base en la experimentación que forma la parte esencial de esta tesis. El sistema Skutterudite posee las condiciones básicas para obtener una figura de mérito Z alta. Las Skutterudites forman estructuras covalentes con bajo índice de coordinación entre los átomos que la constituye lo que contribuye a la posible incorporación de nuevos átomos en el gran vacío intersticial que existe. Nuevos compuestos se pueden formar a partir de nuevos átomos incorporados en el vacío intersticial lo que contribuye en la optimización de las características termoeléctricas. Se han estudiado soluciones de Skutterudites basadas en compuestos del tipo CoSb3-xAsx para temperaturas hasta 700K.En el capítulo 5 se han desarrollado varios experimentos en relación con material Skutterudite preparado mediante nanotecnología. Constituye el núcleo de esta tesis y se divide en tres experimentos básicos: -Estudio del material Co-Sb con nanoestructura. - Estudio del material Co-Sb nanoestructurado en donde parte del Co se sustituye por Ni para estudiar sus características termoeléctricas. -Estudio de un monomódulo constituido en base a los materiales estudiados. En concreto el material tipo CoSb3 (M1) que actúa de material tipo n y el Zn4Sb3 que actúa como el material de tipo p.Los resultados que se han obtenido pueden ser la base para el estudio de materiales también basados en el CoSb3 , pero con la sustitución de su estructura por nuevos elementos. El Nb (Niobio), es un elemento investigado y actúa como dopante de tipo p sustituyendo a átomos de Co. La conductividad eléctrica es factible de ser incrementada en el compuesto final, aunque futuras líneas de investigación confirmarán su utilidad. Otra línea de investigación que se podría derivar a partir del estudio realizado en esta tesis es la realización de estructuras termoeléctricas (células termoeléctricas) basadas en el material estudiado.La herramienta microprobe se ha desarrollado de forma especial para la realización de la investigación expuesta en esta tesis. Es una herramienta que ha servido para medir de forma espacial el coeficiente de Seebeck y la conductividad eléctrica esencialmente. Microprobe consiste básicamente en una punta de prueba calentada que es posicionada sobre la superficie de una muestra. La punta es conectada a un termopar (normalmente de tipo T, Cu-CuNi) que mide la temperatura que se llamará T1. La muestra siempre se pone sobre un buen contacto eléctrico y térmico que también se conecta a un termopar midiéndose la temperatura T0. Combinando los cables (Cu-Cu) y (CuNi-CuNi) de los termopares es posible obtener las tensiones que se llamarán U0 y U1 que son procesadas adecuadamente para obtener el coeficiente de Seebeck.Postprint (published version

Modelling and simulation of a thermoelectric structure with pellets of non-standard geometry and materials

The aim of this paper is to develop and manufacture a thermoelectric structure operating in Peltier mode with non-standard materials, using a Finite Element Model. Thus, both the reliability of the Finite Element Model and the correct development and design of the new thermoelectric structure are ascertained, achieving a dual goal of our research group. This work provides a very good correlation between simulated and experimental results, and corroborates that the material’s performance has a decisive influence on the thermoelectric properties of the structure in the temperature range of study considered.Peer ReviewedPostprint (author’s final draft

Caracterización de Skutterudites como material termoeléctrico desarrollado con nanotecnología.

In this research work it has been implemented with the semiconductor characterization, base basically in the thermoelectric structure develop with Skutterudite nanostructures, under different manufacturing process, specially compounds from the type Co-Ni-Sb, by developing and study of its intrinsic characteristics related to thermoelectric properties as the figure of merit, by the use of special design tooling for such purpose, doing analogies of their behavior with classic materials. It is also shown the specific instrumentation. In chapter 1 it is shown the general actual stage of the semiconductor materials use in Thermoelectric and related measurement systems.The chapter 2 has been focus for the introduction of different model series of monomodule and the basic structure of the thermoelectric system with the mainly objective to know the behavior of the pellets and different simulation versions. The continues model base its development in the use of the average parameters taken from different concepts as temperature functions and the semiconductor material. With the utilization of models base in finite elements the software was simplify as a support, as it is much more easier to include parameters in each of the elements that the material is divide.In chapter 3 it has been develop the study of some thermoelectric compounds base in BiTe. It has been develop the characterization of a compound base in (Bi2Te3)1-xy( Sb2Te3)x(Sb2Se3)y that pretends exploit the BiTe characteristics at room temperatures about 300K. Previously it has been develop some theoretical concepts that will explain the different techniques in the development of the thermoelectric materials as the design in 2D quantum well that has multiple advantages regarding the Figure of Merit goals higher than with bulk materials. To finish in chapter 3, it was study a mono-module base in the study materials.In chapter 4 the material Skutterudite has been develop as an experimental base that conform part of this thesis. The Skutterudite system possess basic conditions to obtain a high Figure of Merit Z. The Skutterudite are forming covalent structures with low coordination index between atoms in the big vacuum interact that exist. New compounds can be form from new atoms added in vacuum interact, which implements in the optimization of the thermoelectric characteristics. It has been study Skutterudite solutions base in compounds from type CoSb3-xAsx for temperature ranges up to 700K.In the chapter 5 it was develop few experiments related to the Skutterudite material, prepare with nanotechnology. Is the core of this thesis and has been divide in tree basic experiments. Study of the material Co-Sb with nano-structure. Study of the material Co-Sb were the Co is replace by Ni to study its thermoelectric characteristics and the study of the mono-module constructed with the study materials. It was also study a thermoelectric mono-module according to the thermoelectric study materials. As a main target we have use the type of material CoSb3 (M1), which acts as n material and Zn4Sb3 that works as p material.The obtained results could be the base for the study of the materials also base in CoSb3, but replacing its structure for new elements. The Nb (Niobio), is an element that was study and works as a dope agent type p replacing the Co atoms. The electrical conductivity could be increase in the final compound but some research lines will confirm its well use. Another research task that could lid from this thesis study is the use of thermoelectric structures (thermoelectric devices) base in the material being study.The microprobe tool, has been develop in special way to use as a research tool for the thesis expose. Is a very useful tool that has been use to measure the Seebeck coefficient in the materials, and the electrical conductivity. The microprobe is basically form by heated test point that is positioned over a sample device. The end of the pointer is connected to a thermocouple normally type T, Cu-CuNi ; that measures the temperature call T1. The sample is always place over a good electrical and thermal contact, which is also connected to a thermocouple to measure the temperature T0. By the combination the wires Cu-Cu and CuNi-CuNi, from the thermocouples it is possible to obtain the voltage that will be name U0 and U1 that are well process to obtain the Seebeck coefficient.En este trabajo de investigación se ha implementado la caracterización del semiconductor en la que se basa la estructura termoeléctrica desarrollada con Skutterudites nanoestructuradas bajo diferentes procesos de fabricación, en concreto compuestos del tipo Co-Ni-Sb, realizando un estudio de sus características intrínsecas relacionadas con las propiedades termoeléctricas como es la figura de mérito mediante herramientas diseñadas para ese propósito haciendo analogías con el comportamiento de materiales clásicos. También se muestra el desarrollo de instrumental específico.El capítulo 2 se ha dedicado a la presentación de una serie de modelos del monomódulo y de la estructura básica del sistema termoeléctrico con el objetivo de conocer el comportamiento del pellet ante diferentes visiones de simulación. El modelo continuo basa su desarrollo en la utilización de los parámetros medios tomados desde diferentes concepciones en función de la temperatura y sobre todo el material semiconductor. Con la utilización de modelos basados en elementos finitos se simplifica la realización de software de soporte ya que es relativamente más fácil introducir parámetros en cada uno de los elementos en que se divide el material.En el capítulo 3 se ha desarrollado el estudio de algunos compuestos termoeléctricos basados en el BiTe. Se ha realizado la caracterización de un compuesto basado en (Bi2Te3)1-x-y(Sb2Te3)x(Sb2Se3)y que intenta explotar las características del BiTe a temperaturas ambientales (sobre 300K). Previamente se ha desarrollado una serie de conceptos teóricos que explican diferentes técnicas en el desarrollo de materiales termoeléctricos como el diseño en 2D quantum well que conlleva multitud de ventajas en cuanto se consiguen figuras de mérito superiores que en bulk. Por último, en el capítulo 3 se ha estudiado un monomódulo en base a los materiales estudiados.En el capítulo 4 se ha desarrollado el material Skutterudite como base en la experimentación que forma la parte esencial de esta tesis. El sistema Skutterudite posee las condiciones básicas para obtener una figura de mérito Z alta. Las Skutterudites forman estructuras covalentes con bajo índice de coordinación entre los átomos que la constituye lo que contribuye a la posible incorporación de nuevos átomos en el gran vacío intersticial que existe. Nuevos compuestos se pueden formar a partir de nuevos átomos incorporados en el vacío intersticial lo que contribuye en la optimización de las características termoeléctricas. Se han estudiado soluciones de Skutterudites basadas en compuestos del tipo CoSb3-xAsx para temperaturas hasta 700K.En el capítulo 5 se han desarrollado varios experimentos en relación con material Skutterudite preparado mediante nanotecnología. Constituye el núcleo de esta tesis y se divide en tres experimentos básicos: -Estudio del material Co-Sb con nanoestructura. - Estudio del material Co-Sb nanoestructurado en donde parte del Co se sustituye por Ni para estudiar sus características termoeléctricas. -Estudio de un monomódulo constituido en base a los materiales estudiados. En concreto el material tipo CoSb3 (M1) que actúa de material tipo n y el Zn4Sb3 que actúa como el material de tipo p.Los resultados que se han obtenido pueden ser la base para el estudio de materiales también basados en el CoSb3 , pero con la sustitución de su estructura por nuevos elementos. El Nb (Niobio), es un elemento investigado y actúa como dopante de tipo p sustituyendo a átomos de Co. La conductividad eléctrica es factible de ser incrementada en el compuesto final, aunque futuras líneas de investigación confirmarán su utilidad. Otra línea de investigación que se podría derivar a partir del estudio realizado en esta tesis es la realización de estructuras termoeléctricas (células termoeléctricas) basadas en el material estudiado.La herramienta microprobe se ha desarrollado de forma especial para la realización de la investigación expuesta en esta tesis. Es una herramienta que ha servido para medir de forma espacial el coeficiente de Seebeck y la conductividad eléctrica esencialmente. Microprobe consiste básicamente en una punta de prueba calentada que es posicionada sobre la superficie de una muestra. La punta es conectada a un termopar (normalmente de tipo T, Cu-CuNi) que mide la temperatura que se llamará T1. La muestra siempre se pone sobre un buen contacto eléctrico y térmico que también se conecta a un termopar midiéndose la temperatura T0. Combinando los cables (Cu-Cu) y (CuNi-CuNi) de los termopares es posible obtener las tensiones que se llamarán U0 y U1 que son procesadas adecuadamente para obtener el coeficiente de Seebeck

Environmental awareness and curriculum sustainability, two tools on the road towards the sustainability of the University of Córdoba

El equipo de la Universidad de Córdoba autor de este trabajo lleva ya más de treinta años autodefiniéndose. Partiendo de un planteamiento de la educación ambiental más naturalista y centrado en los problemas de la conservación de la naturaleza, se ha ido derivando a planteamientos muchos más cercanos a la idea de sostenibilidad y sus objetivos definidos para el horizonte 2030. El presente artículo se dirige a realizar una revisión del compendio de trabajos e investigaciones desarrolladas, con un doble objetivo. El primero es el de presentarnos a la comunidad científica destinataria de esta nueva publicación, como grupo de trabajo universitario en Educación Ambiental (integrado en el grupo de investigación SEJ049 Evaluación educativa e innovación). Por otro, el de divulgar los hallazgos obtenidos y reflexionar sobre su utilidad. El título del artículo hace referencia a las dos grandes líneas de trabajo en las que nos estamos desenvolviendo: el estudio de la conciencia ambiental y de los procesos de sostenibilización curricular, con la formación del profesorado como principal catalizador.The team of the University of Córdoba author of this work has been self-defining for more than thirty years. Starting from a more naturalistic approach to environmental education focused on the problems of nature conservation, it has been evolving to approaches much closer to the idea of sustainability and its objectives defined for the 2030 horizon. This article aims to carry out a review of the compendium of works and research developed, with a double objective. The first is to present ourselves to the scientific community that is the receiver of this new publication, as a university work group on Environmental Education (integrated in the research group SEJ049 Educational evaluation and innovation). Secondly, to disseminate the findings of our research and reflect on its usefulness. The title of the article refers to the two main lines we are working in: the study of environmental awareness and curriculum sustainability processes, with teacher training as its main catalyst

Universities That Learn to Tackle the Challenges of Sustainability: Case Study of the University of Córdoba (Spain)

On their path to sustainability, universities must consider both individual and organizational components. Universities are organizations that also have the capacity to learn and evolve. By means of an analysis conducted over the past 20 years at the University of Córdoba (Spain), this article identifies the variables present in the University’s environmental sustainability process, characterizing its evolution through different stages and proposing an organizational model that orders these variables into a system within the framework of complexity. This model highlights the importance of a scientific-technical structure as catalyst, facilitator, and attractor of transformative flows within the organization, which could be a key component of its evolution towards sustainability. It also underscores the possibility of using environmental awareness and the perceived norm as indicators of the system. This characterization reveals the potential of these variables as indicators of progress and anchoring points for the permanent monitoring of the system, and it will also help to design potentially more effective and forceful actions and could prove valuable as a comparison indicator between universities

Oral squamous cell carcinoma of tongue: Histological risk assessment. A pilot study

Background: More than 90% of malignant tumors diagnosed in the oral cavity are Oral Squamous Cell Carcinomas (OSCC) whose preferred location is the tongue. Classically, this disease has affected men preferentially, although recent studies suggest that trends are changing and the proportion of women with OSCC is increasing. In addition, the prevalence of oral cancer is also determined by some risk factors as alcohol consumption and tobacco. Currently, the Tumor, Node, Metastasis (TNM) classification is employed to defined tumor stage and based on this guide specific treatments are established. However, 5-year-survival does not exceed 50% of cases. The objective of this study is to determine whether a histological risk pattern indicative of higher recurrence might be present in T1-T2 tumors located in the anterior two thirds of the tongue. Material and Methods: Samples from 26 patients with OSCC were analyzed and histological risk pattern of recurrent and non-recurrent tumors were compared. We have analyzed histological variables described in Anneroth and Brandwein-Gensler classifications. Additionally, we have also examined both clinical variables such as age, sex or comorbidities, as well as habits such as tobacco or alcohol consumption. Results: We found that sex (male) and keratinization degree (high or moderate) are directly related with OSCC recurrence. In fact, free illness time is lower in men and higher in those cases with minimal or no keratinization. Conclusions: Based on the variables analyzed, it has not been possible to establish a histological risk pattern that, complementary to the TNM classification, could have a predictive role in these early-stage tongue carcinoma

Portable multispectral imaging system based on Raspberry Pi

Purpose In this work, the authors aim to present a compact low-cost and portable spectral imaging system for general purposes. The developed system provides information that can be used for a fast in situ identification and classification of samples based on the analysis of captured images. The connectivity of the instrument allows a deeper analysis of the images in an external computer. Design/methodology/approach The wavelength selection of the system is carried out by light multiplexing through a light-emitting diode panel where eight wavelengths covering the spectrum from ultraviolet (UV) to near-infrared region (NIR) have been included. The image sensor used is a red green blue – infrared (RGB-IR) micro-camera controlled by a Raspberry Pi board where a basic image processing algorithm has been programmed. It allows the visualization in an integrated display of the reflectance and the histogram of the images at each wavelength, including UV and NIRs. Findings The prototype has been tested by analyzing several samples in a variety of applications such as detection of damaged, over-ripe and sprayed fruit, classification of different type of plastic materials and determination of properties of water. Originality/value The designed system presents some advantages as being non-expensive and portable in comparison to other multispectral imaging systems. The low-cost and size of the camera module connected to the Raspberry Pi provides a compact instrument for general purposes.Project CTQ2013-44545-R from the Ministry of Economy and Competitiveness (Spain)Junta de Andalucía (Proyecto de Excelencia P10-FQM-5974)European Regional Development Funds (ERDF

El autoengaño como mecanismo de mantenimiento de la adicción a las drogas

Background: This study was aimed at: (i) examining levels of self-deception in substance dependent individuals following addiction treatment, and (ii) examining the association between participants’ levels of self-deception and (a) personality disorders, (b) addiction-related beliefs, (c) duration of abstinence, and (d) estimates of craving. Method: We administered self-report questionnaires of self-deception and mixtification, and core beliefs related to addiction and craving. The sample comprised 79 outpatients who were consecutively recruited at the Centro Provincial de Drogodependencias in Granada: 87.3% were males and the mean age was 37.68 years old. Thirty-four percent of participants were diagnosed with comorbid personality disorders. Results: Results showed that individuals with substance dependence exhibit elevated scores of self-deception, particularly in the domains of active denial, selective amnesia, projection, and confabulation. Individuals with comorbid personality disorders display greater levels of self-deception compared to individuals without dual diagnosis. Conclusions: Moreover, there is a significant association between levels of self-deception and addiction-related beliefs and craving. In addition, there is a negative association between levels of self-deception and duration of abstinenceAntecedentes: los objetivos de este estudio fueron: (i) conocer el nivel de autoengaño de drogodependientes en tratamiento por su adicción, y (ii) estudiar la relación del autoengaño con (a) los trastornos de personalidad, (b) las creencias, (c) la abstinencia y (d) el craving en estos pacientes. Método: se utilizaron los cuestionarios de autoengaño y mixtificación (IAM) y de creencias relacionadas con el consumo de drogas y craving. La muestra estaba compuesta por 79 pacientes atendidos de forma consecutiva en el Centro Provincial de Drogodependencias de Granada. El 34.5% de los pacientes presentaban un trastorno de la personalidad. Resultados: los resultados mostraron que los drogodependientes obtienen puntuaciones elevadas en autoengaño, especialmente en los factores negación, amnesia selectiva, proyección y pensamiento fantaseado. Además, los pacientes con trastornos de la personalidad presentan niveles de autoengaño más elevados en comparación a los que no presentan este tipo de psicopatología, observándose una relación significativa entre las creencias nucleares relacionadas con el consumo y con el craving con el nivel de autoengaño. Conclusiones: se constata igualmente que el nivel de autoengaño se relaciona de forma negativa con el tiempo de abstinencia, lo que convierte al autoengaño en una diana terapéutica para mejorar el pronósticoS

Nutritional planning to run an Ultra-marathon, the Transvulcania: Case report

La Transvulcania es una competición individual de montaña con 74,6km, en la que se dispone de avituallamientos para cubrir las necesidades de alimentación e hidratación de los participantes. La importancia de la preparación dietético-nutricional radica en la prevención o disminución de problemas gastrointestinales, deshidratación, hiponatremia y fatiga, entre otros. El objetivo del presente informe es describir la planificación dietético-nutricional de un deportista que afronta este evento. Varón de 37 años con 10 años de experiencia deportiva, en el que se evaluaron los hábitos alimentarios, ingesta de suplementos, composición corporal. Para la planificación alimentaria de la Transvulcania, se tuvo en cuenta las recomendaciones dietético-nutricionales para deportistas en competición, tiempo medio, lugar de los avituallamientos y posible ingesta de alimentos/suplementos. La planificación dietético-nutricional en eventos de ultrarresistencia es un condicionante para realizar satisfactoriamente la prueba, tolerando e ingiriendo adecuadamente los alimentos/suplementos y evitando riesgos nutricionales como la deshidratación, fatiga, molestias gastrointestinales, etc.The Transvulcania is an individual mountain competition with 74,6km. The event has provisioning areas to meet the needs of nutrition and hydration of the participants. The importance of dietary-nutritional preparation is in preventing or reducing gastrointestinal problems, dehydration, hyponatremia, fatigue, among others. The aim is to describe the dietary and nutritional planning an athlete in this event. Eating habits, supplement intake and body composition were evaluated in a 37 years old male with 10 years of sports experience. Dietary and nutritional recommendations for athletes in competition, test time, refreshment areas and possible food intake/supplements were taken into account for dietary planning during the competition. The dietary and nutritional planning in ultra-endurance events is important to successfully perform the competition, tolerating and taking foods/supplements properly, and avoiding nutritional risk and dehydration, fatigue, gastrointestinal disturbances, etc