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Diseño de un Robot Bípedo Pasivo con Rodillas
(Universidad de Chile, 2008)
movimientos humanos, que busca principalmente, perfeccionar la robótica aplicada a los
mismos, y, por otro lado, aumentar la eficiencia energética de los robots activos.
El objetivo es diseñar un robot bípedo pasivo con rodillas que sirva de base para el...
Plan de negocios de la
posada “Green Hostel Limitada”
(Universidad de Chile, 2010)
, que como equipo emprendedor no tenemos experiencia
en la industria hotelera pero sí poseemos conocimientos en proyectos de sustentabilidad
de viviendas, en estudios relacionados a la eficiencia energética y la mitigación de CO2.
La estrategia...
Net metering en Chile : políticas comparadas y limitaciones legales
(Universidad de Chile, 2017-04-28)
preponderante de las ERNC, las que presentan una constante baja en sus costos. La política
energetica del Estado de Chile en materia de generación eléctrica pretende que al año 2035 el 60% de
dicha generación provenga de fuentes renovables no convencionales...
. Energía 2050, Política Energetica de Chile. Pág 31 [en línea]. http://www.energia.gob.cl/sites/default/files/energia_2050_-_politica_energetica_de_chile.pdf [consulta: 16 marzo 2017]. 6 Dentro de esta exitosa política de promoción...
. Energía 2050, Política Energetica de Chile. Pág 31 [en línea]. http://www.energia.gob.cl/sites/default/files/energia_2050_-_politica_energetica_de_chile.pdf [consulta: 16 marzo 2017]. 6 Dentro de esta exitosa política de promoción...
Propuesta de un modelo de cooperativa en comunidades aisladas para electrificación rural económica: mediante sistema modular de energías renovables, eólico y solar
(Universidad de Chile, 2018)
El acceso a fuentes energéticas estables, continuas y seguras es un requisito mínimo para asegurar una calidad de vida, existen en Chile más de 20 mil familias de sectores rurales sin acceso de ningún tipo a la energía eléctrica, lo cual es un...
Evaluación ambiental de distintas tecnologías de almacenamiento de energía
(Universidad de Chile, 2018)
térmico con materiales de cambio de fase, con el fin de entregar insumos relevantes como herramientas de diseño y planificación de los sistemas eléctricos y así contar con sistemas más sustentables con el medio ambiente y con mayor eficiencia energética...
Chile is a developing country that has energy policies committed to the environment, by 2035 it is expected that 60% of the energy produced in the country will be renewable and by 2050 it should be at least 70%. As some of the renewable energy systems have a variable output power, it is necessary to work with energy storage technologies to achieve an efficient integration to the electricity systems in Chile and be able to use all the energy produced. The objective of this work is to evaluate from an environmental point of view ten types of energy storage systems: by water pumping, by compressed air, kinesics storage, by hydrogen fuel cells, Power-to-Gas storage, of solar fuel, with Lead-acid batteries, with Lithium batteries, of Vanadium flow batteries and thermal storage with phase change materials, in order to deliver relevant inputs such as design and planning tools and have more sustainable systems with the environment and greater energy efficiency. To achieve the above, a review of the environmental literature and the literature of the energy storage systems was carried out, achieving a classification and characterization of the different technologies considering the type of storage they use. The materials required for its elaboration, processes, components and operational aspects were also considered, defining for the analysis as life cycle stages: raw materials, implementation, operation and end of its useful life. On the environmental axis, five aspects were considered: air, water, soil, flora and fauna, and people. This evaluates each stage of the life cycle of the energy storage systems in each environmental area. When analyzing the different technologies from the point of view of their life cycle stages we can appreciate that when they are raw materials those that have a higher level of impacts are the Pumped Hydroelectric storage and Lead-Acid batteries, the first due to the size of the system and the second by the level of toxicity of its components. At the time of implement the storage systems Lead-Acid batteries are still predominating with greater impact magnitudes. Then during the operation, the Pumped Hydroelectric storage has greater impacts. And at the end of its useful life Lead-Acid Batteries are still those that have a higher level of damage due to the level of toxicity of its components and that require careful handling during recycling. In general, throughout its life cycle, the systems with the highest degrees of negative environmental impacts were Lead-Acid batteries and Pumped Hydroelectric storage. The three systems that generate a lower number of impacts throughout their life cycle are Solar Fuel, Power-to-gas and hydrogen fuel cells....
Chile is a developing country that has energy policies committed to the environment, by 2035 it is expected that 60% of the energy produced in the country will be renewable and by 2050 it should be at least 70%. As some of the renewable energy systems have a variable output power, it is necessary to work with energy storage technologies to achieve an efficient integration to the electricity systems in Chile and be able to use all the energy produced. The objective of this work is to evaluate from an environmental point of view ten types of energy storage systems: by water pumping, by compressed air, kinesics storage, by hydrogen fuel cells, Power-to-Gas storage, of solar fuel, with Lead-acid batteries, with Lithium batteries, of Vanadium flow batteries and thermal storage with phase change materials, in order to deliver relevant inputs such as design and planning tools and have more sustainable systems with the environment and greater energy efficiency. To achieve the above, a review of the environmental literature and the literature of the energy storage systems was carried out, achieving a classification and characterization of the different technologies considering the type of storage they use. The materials required for its elaboration, processes, components and operational aspects were also considered, defining for the analysis as life cycle stages: raw materials, implementation, operation and end of its useful life. On the environmental axis, five aspects were considered: air, water, soil, flora and fauna, and people. This evaluates each stage of the life cycle of the energy storage systems in each environmental area. When analyzing the different technologies from the point of view of their life cycle stages we can appreciate that when they are raw materials those that have a higher level of impacts are the Pumped Hydroelectric storage and Lead-Acid batteries, the first due to the size of the system and the second by the level of toxicity of its components. At the time of implement the storage systems Lead-Acid batteries are still predominating with greater impact magnitudes. Then during the operation, the Pumped Hydroelectric storage has greater impacts. And at the end of its useful life Lead-Acid Batteries are still those that have a higher level of damage due to the level of toxicity of its components and that require careful handling during recycling. In general, throughout its life cycle, the systems with the highest degrees of negative environmental impacts were Lead-Acid batteries and Pumped Hydroelectric storage. The three systems that generate a lower number of impacts throughout their life cycle are Solar Fuel, Power-to-gas and hydrogen fuel cells....
Factibilidad técnica estratégica y económica de un Centro de Investigación y Desarrollo para el sector de construcción enfocado en sustentabilidad y aumento de la producción
(Universidad de Chile, 2017)
observando desde ya varios años, la
llegada de la Certificación LEED a Chile1, más la creación de programas nacionales de
certificación de la calidad térmica y de la eficiencia energética de viviendas2, la creación
de la Certificación Nacional de Edificios...
- Equipos solares térmicos - Eficiencia energética, artefactos eficientes y ahorro de agua - Incremento de aislación térmica Con un 29% en departamentos y 18% en casas (Portal Inmobiliario, 2015). Respecto de la construcción del tipo no habitacional, el...
- Equipos solares térmicos - Eficiencia energética, artefactos eficientes y ahorro de agua - Incremento de aislación térmica Con un 29% en departamentos y 18% en casas (Portal Inmobiliario, 2015). Respecto de la construcción del tipo no habitacional, el...
Evaluación energética para integración de energía solar térmica en procesos de la industria láctea
(Universidad de Chile, 2020)
avances en cuanto a su aplicabilidad, efectividad, eficiencia y factibilidad. A su vez, se identifica a la integración de energía solar térmica en procesos industriales (Solar Heat for Industrial Processes, SHIP) como una de las aplicaciones con mayor...
Comparación de dos métodos de detección de celo en vacas Holstein americano de alta producción
(Universidad de Chile, 2010)
que la eficiencia de detección de celo del Sistema de Medición de Actividad fue la menor del ensayo. Sin embargo, este método no hace distinción entre el día y la noche, para detectar los celos. En cambio, la observación visual (OV) detectó el 72,1% de...
This study had as objective to compare the traditional method of heat detection (visual observation), with the new technology of Delaval (Activities Meter System), in high producing cows during the mating period. This investigate was realized at the Agricultural Society Las Mercedes, XIV Region. 240 American Holstein cows were used, whose last delivery was normal, between February 1st and April 15th, which were randomly assigned to two treatments: Visual observation (T1) and Activity Meter System (T2). During mating season, the sign of heat, activity level, a method that detected the heat, time and date of insemination and cover were registered. Once the season was over, 40 days later, pregnancy was diagnosed by a veterinarian. The efficiency of heat detection reached values of 70.8 and 57.7% respectively for each treatment. The results show that the efficiency of heat detection of the activity meter system was the lowest of the test. However, this method does not distinguish between day and night to detect the heats. Instead, visual observation (VO) detected 72.1% of heats during the day. When to analyze the open days depending on the efficiency of heat detection, it is observed that increasing the efficiency of heat detection, the time from labor to conception decreases. Therefore, the activity meter system obtains the highest period from labor to conception (187 days). The pregnancy rate was expressed as the product between the rate of heat detection and the conception rate. The heat detection rate of activity meter system (34%) was exceeded by that obtained by visual observation (70%). By analyzing the conception rate, no significant differences among treatments were found (P ≥ 0.05), but the rate of Activity Meter System exceeded that recorded by visual observation. Although the Activity Meter System had the highest rate of conception, it did not obtain the best pregnancy rate (14.7%). Nevertheless, the treatments did not present significant differences (P ≥ 0.05) to analyze pregnancy rates. By comparing the coital rate of the treatment T1 versus the treatment T2, no significant differences were observed (P ≥ 0.05). In addition, the Activity Meter System exceeded 28% of visual observation, when analyzed conception rates at first service. It is important to mention that the animals before 60 days postpartum had the same conception rate to first service, independent to the method of heat detection used. During that period, the animals express less intensively the external signs of heat, but this situation changes when the postpartum days are increased. The conception rate to first service determined after 60 days postpartum, presented the following values: 55.0 and 78.0%, respectively for each treatment. According to the results obtained, we conclude that when evaluating the efficiency of heat detection of each method, the activity meter system is less efficient than the visual observation. Additionally, using this method of heat detection, most reproductive parameters are affected....
This study had as objective to compare the traditional method of heat detection (visual observation), with the new technology of Delaval (Activities Meter System), in high producing cows during the mating period. This investigate was realized at the Agricultural Society Las Mercedes, XIV Region. 240 American Holstein cows were used, whose last delivery was normal, between February 1st and April 15th, which were randomly assigned to two treatments: Visual observation (T1) and Activity Meter System (T2). During mating season, the sign of heat, activity level, a method that detected the heat, time and date of insemination and cover were registered. Once the season was over, 40 days later, pregnancy was diagnosed by a veterinarian. The efficiency of heat detection reached values of 70.8 and 57.7% respectively for each treatment. The results show that the efficiency of heat detection of the activity meter system was the lowest of the test. However, this method does not distinguish between day and night to detect the heats. Instead, visual observation (VO) detected 72.1% of heats during the day. When to analyze the open days depending on the efficiency of heat detection, it is observed that increasing the efficiency of heat detection, the time from labor to conception decreases. Therefore, the activity meter system obtains the highest period from labor to conception (187 days). The pregnancy rate was expressed as the product between the rate of heat detection and the conception rate. The heat detection rate of activity meter system (34%) was exceeded by that obtained by visual observation (70%). By analyzing the conception rate, no significant differences among treatments were found (P ≥ 0.05), but the rate of Activity Meter System exceeded that recorded by visual observation. Although the Activity Meter System had the highest rate of conception, it did not obtain the best pregnancy rate (14.7%). Nevertheless, the treatments did not present significant differences (P ≥ 0.05) to analyze pregnancy rates. By comparing the coital rate of the treatment T1 versus the treatment T2, no significant differences were observed (P ≥ 0.05). In addition, the Activity Meter System exceeded 28% of visual observation, when analyzed conception rates at first service. It is important to mention that the animals before 60 days postpartum had the same conception rate to first service, independent to the method of heat detection used. During that period, the animals express less intensively the external signs of heat, but this situation changes when the postpartum days are increased. The conception rate to first service determined after 60 days postpartum, presented the following values: 55.0 and 78.0%, respectively for each treatment. According to the results obtained, we conclude that when evaluating the efficiency of heat detection of each method, the activity meter system is less efficient than the visual observation. Additionally, using this method of heat detection, most reproductive parameters are affected....
Evaluación de la estrategia de integración de una planta geotérmica de ciclo binario y energía solar térmica de concentración
(Universidad de Chile, 2018)
CONCENTRACIÓN
El desarrollo de la industria y el crecimiento de la población chilena genera constantemente
un aumento en la demanda energética del país. Es por esta necesidad que se requiere el
aumento de la matriz eléctrica nacional. También es necesario...
Índice de Ilustraciones 1.1. Participación de energías renovables en matriz energética chilena . . . . . . . 2 1.2. Disponibilidad de recursos solares y geotérmicos en el norte de Chile . . . . . 3 1.3. Costos y riesgo de una planta geotérmica...
Índice de Ilustraciones 1.1. Participación de energías renovables en matriz energética chilena . . . . . . . 2 1.2. Disponibilidad de recursos solares y geotérmicos en el norte de Chile . . . . . 3 1.3. Costos y riesgo de una planta geotérmica...
Generación de agua para zonas aisladas
(Universidad de Chile, 2016-07)
AquaNimbusSpA será una empresa de representación y servicios, atendiendo a clientes de grandes y medianas empresas, ofreciendo soluciones llave en mano para la recuperación de agua, eficiencia energética y/o soluciones al actual problema de la...