Publicaciones en Ciencias y Tecnología最新文献

{"title":"Diseño y análisis preliminar de una instalación de paneles solares fotovoltaicos para el abastecimiento de una vivienda residencial con vehículo eléctrico","authors":"C. G. González, Carmen Luisa Vásquez-Stanescu, Rodrigo Ramírez-Pisco","doi":"10.13140/RG.2.2.22319.25769","DOIUrl":"https://doi.org/10.13140/RG.2.2.22319.25769","url":null,"abstract":"espanolEl presente trabajo tiene como finalidad el diseno basico de una instalacion fotovoltaica en una vivienda residencial en la ciudad de Madrid en dos (2) casos, en los que se considera o no la adquisicion y uso de un vehiculo electrico. Se recurre a la base de datos PVGIS® para la estimacion de la irradiacion de la zona, situada entre 86 y 233 kWh/m2. El Caso A considera el consumo de la vivienda y del vehiculo electrico. Su diseno se compone de 11 modulos fotovoltaicos y siete (7) baterias de ion-litio con sus accesorios. El Caso B, que solo considera el consumo de la vivienda, se compone de ocho (8) modulos fotovoltaicos y cuatro (4) baterias de ion-litio, asi como otros accesorios. Se lleva a cabo la comparativa sobre la rentabilidad economica de ambas instalaciones y se determinan las emisiones evitadas de cada una de ellas. Se comprueba como el Caso B es mas rentable economicamente, pero es el Caso A el que permite evitar mayor cantidad de emisiones de gases de efecto invernadero. EnglishThe purpose of this work is the basic design of a photovoltaic installation in a residential home in the city of Madrid in two (2) cases, in which the acquisition and use of an electric vehicle is considered or not. The PVGIS® database is used to estimate the irradiation of the area, located between 86 and 233 kWh / m2. Case A considers the consumption of the home and the electric vehicle. Its design consists of 11 photovoltaic modules and seven (7) lithium-ion batteries with their accessories. Case B, which only considers the consumption of the home, consists of eight (8) photovoltaic modules and four (4) lithium-ion batteries, as well as other accessories. The comparison is carried out on the economic profitability of both facilities and the avoided emissions of each of them are determined. It is proven that Case B is more profitable economically, but it is Case A that allows avoiding the greatest amount of greenhouse gas emissions.","PeriodicalId":359194,"journal":{"name":"Publicaciones en Ciencias y Tecnología","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130252423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Los Refrigerantes y los aportes de los científicos Rowland y Molina","authors":"Máylari Vilexis Galindez Jiménez, Carlos Mogollón Mujica","doi":"10.13140/RG.2.2.10650.98241","DOIUrl":"https://doi.org/10.13140/RG.2.2.10650.98241","url":null,"abstract":"espanolEl presente trabajo consiste en una investigacion de tipo documental, enfocada en el desarrollo historico de los refrigerantes, haciendo enfasis en los freones comerciales elaborados a base de cloro-fluor-carbonos (CFC), los cuales generaron el primer cuestionamiento como agotadores de la capa de ozono, fundamentado en el valioso aporte a la humanidad de Mario Molina y Sherwood Rowland, galardonados en 1995 con el Premio Nobel de Quimica, al demostrar al mundo los danos ocasionados en la capa de ozono y ser precursores en la solucion, iniciada a partir del protocolo de Montreal. Adicionalmente, se expone el destino de los refrigerantes segun estudios actuales. Gracias al trabajo realizado por Molina y Rowland al conjugar la relacion entre la ciencia, la industria y la actividad diplomatica, se alcanza a ver resultados que se traducen en beneficios transcendentales al planeta. El uso de la refrigeracion continuara, pero deben seguir las investigaciones que aumenten el conocimiento en tecnicas que no deterioren el ambiente, considerando asi el ozono para la vida, para la preservacion y vida futura. EnglishThe present paper consists of a documentary type investigation, focused on the historical development of refrigerants, emphasizing commercial freons made from chlorine-fluorine-carbons (CFCs), which generated the first questioning as ozone exhausting , based on the valuable contribution to humanity ofMario Molina and Sherwood Rowland, awarded the 1995 Nobel Prize in Chemistry, by demonstrating to the world the damage caused to the ozone layer and being pioneers in the solution, starting with the Montreal protocol. Additionally,itdescribesthe fate of the refrigerants, exposing current studies. Thanks to the work done by Molina and Rowland in combining the relationship between science, industry and diplomatic activity, it is possible to see results that translate into transcendental benefits to the planet. The use of refrigeration will continue, but research should continue to increase knowledge in techniques that do not deteriorate the environment, thus considering ozone for life, for preservation and future life","PeriodicalId":359194,"journal":{"name":"Publicaciones en Ciencias y Tecnología","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128176090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}