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Análisis comparativo de distintos escenarios de desarrollo energético
(Universidad de Chile, 2014)
: Precio Medio de Mercado en el SING 2014 ...................................................... 96
xi
Acrónimos
Generales
AChEE: Asociación Chilena de Eficiencia Energética
AP: Precio Medio de Mercado de la...
: Concentración Solar de Potencia DAANC: Derechos de Aprovechamiento de Aguas No Consuntivos DNI: Radiación Directa Normal EE: Eficiencia Energética ERNC: Energías Renovables No Convencionales f.p.: Factor de Planta GHI: Global Horizontal Radiation xii...
: Concentración Solar de Potencia DAANC: Derechos de Aprovechamiento de Aguas No Consuntivos DNI: Radiación Directa Normal EE: Eficiencia Energética ERNC: Energías Renovables No Convencionales f.p.: Factor de Planta GHI: Global Horizontal Radiation xii...
Análisis de desempeño de tres sistemas solares térmicos
(Universidad de ChileCyberDocs, 2009)
existe destrucción o pérdida de exergía. Se identificó la producción de agua caliente sanitaria como una importante carga energética y exergética del sistema, principalmente por la alta temperatura que se debe alcanzar. Se calcularon los requerimientos...
Análisis del modelo de negocio de Energy AS a Service EAAS en el mercado electrónico chileno
(Universidad de Chile, 2020)
desafío de las energías renovables ha tomado mucha más fuerza durante estos últimos años en el mundo incluido Chile, que desea un futuro ambiental sostenible en el tiempo según el Ministerio de Energía de Chile. Esto lo ha manifestado en la Ruta Energética...
Modelo operacional para asistir la compra de carbones
(Universidad de Chile, 2015)
PARA ASISTIR LA COMPRA DE CARBONES
El carbón es un combustible ampliamente utilizado para generar energía en Chile y
el mundo. Como ejemplo, un 19% de la matriz energética de nuestro país se basa en
centrales termoeléctricas a carbón.
En estas...
................................................................................................................................................ 10 2.2.3 Filtros de mangas de operación continua .............................................................................................. 13 2.2.4 Eficiencia de una central...
................................................................................................................................................ 10 2.2.3 Filtros de mangas de operación continua .............................................................................................. 13 2.2.4 Eficiencia de una central...
Análisis técnico-económico de solución a congestión en el sistema interconectado central SIC
(Universidad de Chile, 2013)
electricidad en los hogares hasta miedo a invertir en Chile en diferentes áreas por parte de capitales extranjeros. Otro componente con el cual no se contaba hace un par de años, es la búsqueda por parte de la sociedad de ser escuchados en materia energética y...
Diseño de un sistema de control de gestión para la línea de negocio de refinación y comercialización de la Empresa Nacional de Petróleo
(Universidad de Chile, 2015-06)
Energética A2: Inestabilidad Económica
O3: Cambio Tecnológico A3: Incrementos de exigencias normativas
O4: Potenciamiento de la Gestión
Empresarial hacia la seguridad laboral y la
eficiencia operacional
A4: Incremento de exigencias sociales...
” .............................................................................. 55 4.1.3.2 Eje estratégico: “Excelencia Operacional, Optimización de Costos y Eficiencia en el Abastecimiento...
” .............................................................................. 55 4.1.3.2 Eje estratégico: “Excelencia Operacional, Optimización de Costos y Eficiencia en el Abastecimiento...
Análisis fluidodinámico en una turbina helicoidal GHT para generación de energía mareo-motriz
(Universidad de Chile, 2012)
La diversificación de la matriz energética en el plano nacional es un tema actual de discusión. Lo anterior se debe al escenario de crisis que ha provocado el incremento sostenido de la demanda energética durante los últimos 50 años, la...
Acuerdos de producción limpia: evaluación de procedimientos de selección de modelos y parámetros en sistemas de estimación de impactos
(Universidad de Chile., 2019-01)
Climático (ASCC). Estas herramientas se han desarrollado como una propuesta de dialogo público-privado a fin reducir la generación de residuos y emisiones mediante la implementación de mejoras en la eficiencia productiva de las empresas buscando generar un...
The challenge of facing climate change has led our country to sign several treaties and international agreements since its adhesion to the United Nations Framework Convention on Climate Change (UNFCCC) in 1994, to the most recent Paris Agreement in 2015. One of the policies implemented to reduce the negative externalities on the environment, has been the Clean Production Agreement (CPA), implemented by The Agency of Sustainability and Climate Change (ASCC). These tools have been developed as a proposal of public-private dialogue for the purpose of reducing waste and emissions. This has been done by improving the productive efficiency in the companies that aim to generate a sustainable development model. Since 2012, due to its ability to reduce the generation of greenhouse gases, the Clean Production Agreement has been included in the Nationally Appropriate Mitigation Actions (NAMAs) that reports our country on the framework of the Copenhagen Conference (COP 15). The necessity to reach the highest confidence levels on these tools, drives the search for improvement in the exactitude and precision of the parameters and models used to quantify the environmental impact, especially in the reduction of greenhouse gases emissions. This work is based on the revision and generation of proposals of improvement on the models and parameters used in the estimation of greenhouse gases emission for The Agency of Sustainability and Climate Change in the framework of the Clean Production Agreement. For this purpose, the estimation models used for The Clean Development Mechanism (CDM) and the evaluation for the parameters by the application of a Likert scale were used as references. From it, the models and parameters used by The Agency were selected and contrasted with the parameters and models accepted and recommended by investigators and technical/regulatory agencies that estimate the same impacts in a global level. The uncertainty of the concerned categories was quantified through the methodology of Monte Carlo Simulation. The results from the simulation are considered in a high level of uncertainty, related mainly to the lack of scientific and technological development about more precise parameters in the estimation area of greenhouse gases emission. Despite this limitation, the methodology allowed to identify the main parameters to be improved to achieve more precise and reliable estimations....
The challenge of facing climate change has led our country to sign several treaties and international agreements since its adhesion to the United Nations Framework Convention on Climate Change (UNFCCC) in 1994, to the most recent Paris Agreement in 2015. One of the policies implemented to reduce the negative externalities on the environment, has been the Clean Production Agreement (CPA), implemented by The Agency of Sustainability and Climate Change (ASCC). These tools have been developed as a proposal of public-private dialogue for the purpose of reducing waste and emissions. This has been done by improving the productive efficiency in the companies that aim to generate a sustainable development model. Since 2012, due to its ability to reduce the generation of greenhouse gases, the Clean Production Agreement has been included in the Nationally Appropriate Mitigation Actions (NAMAs) that reports our country on the framework of the Copenhagen Conference (COP 15). The necessity to reach the highest confidence levels on these tools, drives the search for improvement in the exactitude and precision of the parameters and models used to quantify the environmental impact, especially in the reduction of greenhouse gases emissions. This work is based on the revision and generation of proposals of improvement on the models and parameters used in the estimation of greenhouse gases emission for The Agency of Sustainability and Climate Change in the framework of the Clean Production Agreement. For this purpose, the estimation models used for The Clean Development Mechanism (CDM) and the evaluation for the parameters by the application of a Likert scale were used as references. From it, the models and parameters used by The Agency were selected and contrasted with the parameters and models accepted and recommended by investigators and technical/regulatory agencies that estimate the same impacts in a global level. The uncertainty of the concerned categories was quantified through the methodology of Monte Carlo Simulation. The results from the simulation are considered in a high level of uncertainty, related mainly to the lack of scientific and technological development about more precise parameters in the estimation area of greenhouse gases emission. Despite this limitation, the methodology allowed to identify the main parameters to be improved to achieve more precise and reliable estimations....
Efecto del nivel de suplementación energética sobre la respuesta metabólica y productiva, en vacas consumiendo praderas con alto contenido protéico
(Universidad de Chile, 2013)
energética sobre la respuesta metabólica y productiva, en vacas consumiendo praderas de un alto contenido proteico. El estudio fue realizado durante los meses de Noviembre y Diciembre del año 2011 y tuvo una duración de 21 días. Se utilizaron 15 vacas de la...
A research was conducted at the Oromo Experimental Station, Department of Animal Production, Faculty of Agricultural Sciences, Universidad de Chile. The objective of this study was to evaluate the effect of energy supplementation on the metabolic and productive response of dairy cows fed pasture with high protein content and high degradability. The study was conducted during November and December of 2011 and lasted for 21 days. Fifteen Cows Holstein New Zealand randomly assigned to three treatments, were used to analyze blood, and productive parameter. For the study of rumen parameters three rumen fistulated cows were assigned to three treatments rotating during three periods under a 3 x 3 Latin square design. Treatments for both experiments were: T0, cows only grazing pasture; T2, grazing pasture plus 4 Kg/day of a concentrate composed of 50% corn and 50% oats and T3, grazing pasture plus 6 Kg/day of the same concentrate. Cows were supplemented twice a day and managed under a strip grazing system. Body weight and body condition were recorded every day. Milk production was recorded the last four days of each week and milk composition was analyzed weekly. Blood samples and ruminal fluid were collected the last two days of each period, blood samples in the morning and the rumen during morning and evening. Ruminal ammonia decreased significantly (P <0,05) as the level of concentrate was increased (17,7; 15,0 and 13,9 mg·dl-1 for T0, T2 and T3). Plasma ammonia decreased (P <0,05) with the inclusion of concentrate but no differences among levels of concentrate (0,497; 0,416 and 0,391 mg∙dl-1 for T0, T2 and T3) were found. Plasma urea concentration decreased significantly (P <0.05) as concentrate was increased (28,3 ; 26,2 and 21,8 mg∙dl-1 for T0, T2 and T3). Live weight and milk production were not affected by treatments (P>0,05). No statistical differences in milk composition, among treatments were found. (P> 0,05), except milk urea concentration, that decreased significantly (P <0.05) as concentrate was increased (46,8; 42,3 and 36,3 mg∙dl-1 for T0, T2 and T3). Under the conditions in which this research was conducted, it is concluded that increasing the level of an energy concentrate in the diet of lactating cows consuming pasture of a high protein content, reduces the concentration of ammonia in the rumen and blood, with a significant decrease in plasma urea and milk levels but without any significant effects on animal productive performance....
A research was conducted at the Oromo Experimental Station, Department of Animal Production, Faculty of Agricultural Sciences, Universidad de Chile. The objective of this study was to evaluate the effect of energy supplementation on the metabolic and productive response of dairy cows fed pasture with high protein content and high degradability. The study was conducted during November and December of 2011 and lasted for 21 days. Fifteen Cows Holstein New Zealand randomly assigned to three treatments, were used to analyze blood, and productive parameter. For the study of rumen parameters three rumen fistulated cows were assigned to three treatments rotating during three periods under a 3 x 3 Latin square design. Treatments for both experiments were: T0, cows only grazing pasture; T2, grazing pasture plus 4 Kg/day of a concentrate composed of 50% corn and 50% oats and T3, grazing pasture plus 6 Kg/day of the same concentrate. Cows were supplemented twice a day and managed under a strip grazing system. Body weight and body condition were recorded every day. Milk production was recorded the last four days of each week and milk composition was analyzed weekly. Blood samples and ruminal fluid were collected the last two days of each period, blood samples in the morning and the rumen during morning and evening. Ruminal ammonia decreased significantly (P <0,05) as the level of concentrate was increased (17,7; 15,0 and 13,9 mg·dl-1 for T0, T2 and T3). Plasma ammonia decreased (P <0,05) with the inclusion of concentrate but no differences among levels of concentrate (0,497; 0,416 and 0,391 mg∙dl-1 for T0, T2 and T3) were found. Plasma urea concentration decreased significantly (P <0.05) as concentrate was increased (28,3 ; 26,2 and 21,8 mg∙dl-1 for T0, T2 and T3). Live weight and milk production were not affected by treatments (P>0,05). No statistical differences in milk composition, among treatments were found. (P> 0,05), except milk urea concentration, that decreased significantly (P <0.05) as concentrate was increased (46,8; 42,3 and 36,3 mg∙dl-1 for T0, T2 and T3). Under the conditions in which this research was conducted, it is concluded that increasing the level of an energy concentrate in the diet of lactating cows consuming pasture of a high protein content, reduces the concentration of ammonia in the rumen and blood, with a significant decrease in plasma urea and milk levels but without any significant effects on animal productive performance....
Modelo de negocio para una plantaforma de fomento al mercado de la sustentabilidad entre Chile y California
(Universidad de Chile, 2013)
productividad y la competitividad de la empresa. El principio básico de la
producción limpia es aumentar la eficiencia global del proceso, previniendo
las pérdidas materiales y energéticas [6].
Cabe destacar que la producción limpia, como herramienta, se...
utiliza en [15], se dividirán en los siguientes segmentos: 1. Materiales avanzados2. 2. Industria agrícola y forestal. 3. Biocombustibles y bioquímicos. 4. Combustibles convencionales. 5. Smart grid. 6. Eficiencia energética. 7. Almacenamiento de...
utiliza en [15], se dividirán en los siguientes segmentos: 1. Materiales avanzados2. 2. Industria agrícola y forestal. 3. Biocombustibles y bioquímicos. 4. Combustibles convencionales. 5. Smart grid. 6. Eficiencia energética. 7. Almacenamiento de...