http://hdl.handle.net/2117/210 2013-05-21T13:35:02Z http://hdl.handle.net/2117/16259 Title: Rehabilitación energética de edificios escolares en clima mediterráneo: caso de estudio, Barcelona Authors: Bosch González, Montserrat; Rodríguez Cantalapiedra, Inma; Álvarez del Castillo, Javier Abstract: necesidad de reducir el consumo energético se hace cada día más evidente, especialmente en Europa debido a su situación de dependencia energética de países externos a la Unión y también por razones relacionadas con el impacto ambiental y las emisiones asociadas. En este contexto, la rehabilitación energética de edificios es una línea de trabajo prioritaria que actúa sobre el parque edificado, y los edificios públicos deben ser un modelo o ejemplo para impulsar este tipo de actuaciones. Los centros docentes, con un potencial de ahorro muy importante y con unos consumos energéticos asociados básicamente a dos grandes conceptos, la iluminación y la climatización, pueden considerarse como un laboratorio de investigación en cuanto a eficiencia energética. A partir de las experiencias adquiridas durante más de 10 años se ha desarrollado una metodología de análisis para la intervención en edificios docentes en Barcelona con los siguientes objetivos: definir los indicadores estratégicos para identificar las oportunidades de ahorro, evaluar las posibles medidas de reducción de consumos a partir de la limitación de la demanda, analizar y dar contenido al papel de cada uno de los actores que intervienen en las estrategias de uso y gestión de los edificios escolares y establecer los criterios que deben considerarse para realizar las futuras intervenciones de rehabilitación energética. El método, como manera de pensar ordenadamente, ha de permitir optimizar los recursos y descubrir les rutas de trabajo que nos conduzcan al objetivo final: reducir el consumo energético del parque edificado http://hdl.handle.net/2117/19232 Title: A practical tool for sizing optimal shading devices Authors: Jorge Sánchez, Juan; Puigdomènech Franquesa, Joan; Cusidó Fàbregas, Joan Antoni Abstract: A nomogram is presented for use in regions with a Mediterranean climate. Architects can use this tool as an easy way to optimize the design of shading devices. The nomogram allows the performance of a proposed external fixed shading device to be evaluated. The input variables required are (i) the location of the building, (ii) the orientation of the facade and (iii) two adimensional characteristics corresponding to the opening-shading device system. The accuracy reaches its minimum value during intermediate seasons but the margin of error is less than 10%. 2013-05-15T09:04:50Z http://hdl.handle.net/2117/19231 Title: A daylight criterion on solar controls for comparing sky radiance models Authors: Jorge Sánchez, Juan; Puigdomènech Franquesa, Joan Abstract: The obstruction of solar radiation by solar controls must be balanced with the required daylight contribution. Solar controls are characterized by the percentage of non-obstructed external radiance. The estimation of this radiance, particularly its diffuse component, depends on the sky radiance distribution used. In this work, we have compared three models (isotropic, CIE clear sky and Perez) before deciding which one is the most suitable for calculating natural light without forgetting the aspect of energy. The incident energy on an aperture where solar control is installed and its daily factor (DF) are the two parameters that have been adopted to analyze the three models. The energy allows us to compare the models and the DF allows us to discuss the weight of each part of the sky dome for each model. It is deduced that the isotropic model is not suitable for calculating the natural light available in the presence of solar control. The small differences observed between the results obtained with the other two models justify the advantage of using Perez's model in calculations of natural illumination due to its simple formulation. 2013-05-15T08:56:22Z http://hdl.handle.net/2117/19220 Title: Estimación de riesgo sobre la salud de población/trabajadores de región industrial por contaminación de partículas suspendidas totales y óxido de azufre Authors: Rincón Polo, Gladys; Cremades Oliver, Lázaro Vicente Abstract: En regiones donde coexisten industrias pesadas con centros poblados, los trabajadores de esas industrias no sólo están expuestos a riesgos por contaminación dentro del ámbito de trabajo, sino además, están expuestos constantemente por vivir en un ambiente contaminado por las emisiones de las industrias para las cuales trabajan. En Venezuela en una franja costera de unos 90 km, cohabitan 11 industrias pesadas (petroquímicas, petroleras y cementeras) que emiten aproximadamente 4790 t/año de partículas suspendidas totales (PST) y 8376 t/año de dióxido de azufre (SO2), con 5 pequeñas ciudades que concentran 658 969 habitantes, quienes trabajan mayoritariamente de manera directa o indirecta para esas industrias. Dada la limitación para disponer de un número de estaciones de muestreo que permita establecer los niveles de concentración de estos contaminantes sobre esos centros poblados, se usa un modelo de dispersión de contaminantes en el aire para estimar dichos niveles de contaminación y así, poder establecer el riesgo sobre la salud de población/trabajadores por la contaminación de PST y SO2. Este estudio permitió establecer que los niveles de SO2 por emisiones industriales han llegado a alcanzar valores considerados de riesgo para la salud de los pobladores/trabajadores, mientras los niveles de PST por emisiones industriales, salvo contadas excepciones, se mantienen en niveles considerados seguros para la salud. 2013-05-14T18:04:07Z http://hdl.handle.net/2117/19214 Title: Definiciones y características del diseño de vestimenta Authors: Baquero, Margarita; Lloveras Macià, Joaquín; Baena, Margarita; Bosch, Magdalena; Cantista, Isabel Abstract: La problemática del acto de vestir, considerada a partir de las necesidades humanas, hace parte de la fundamentación de una construcción teórica para el diseño de vestimenta que busca identificar y racionalizar el proceso proyectual des de un punto de vista integral. Profundizar en la relación entre el usuario, la prenda como producto y el contexto que los rodea es el principal objetivo de este artículo. 2013-05-14T16:28:07Z http://hdl.handle.net/2117/19195 Title: Comparative study of the performance of three cross-flow ceramic membranes for water treatment Authors: Cremades Oliver, Lázaro Vicente; Rodríguez-Grau, Esteban; Rafael, Mulero; Cusidó Fàbregas, Joan Antoni Abstract: Several tests using water as effluent are used to analyse the performance of three types of microfiltration cross-flow ceramic membranes. Two of these membranes are commercial (Atech and Membralox/US Filter) and the third one is experimental. The main differences between them lie in their chemical composition (different origin of raw materials) and in their manufacturing process. The results presented here show the dominant effect of the filtering and the gel layer. Both are formed during operation acting as equalising agent between the three membranes. The membranes tested have similar performances in cross-flow operation, although permeability rates for the membrane Membralox/US Filter were about 15% higher. This increase might be due to the smoother surface formed by a second filtering ultrafiltration layer (0.01 ìm) of 10 ìm width, which probably contributes to a decrease in the thickness of the gel layer formed during operation. Using specific raw materials (non-industrial) as well as a second ultrafiltration layer improves the results in operation (performances and cleaning intervals). However, they are uneconomical because of the extra costs involved. In conclusion, low-cost membranes can achieve similar results to the commercial and more expensive ones opening up their application to new uses and emergent markets. 2013-05-14T09:58:20Z http://hdl.handle.net/2117/19182 Title: Verbalització multilingüística del llenguatge simbòlic, una eina d'aprenentatge Authors: Alsina Aubach, Montserrat; Soler Lorente, Mónica 2013-05-13T14:46:06Z http://hdl.handle.net/2117/19117 Title: Some experiences related to innovation methodologies within the university classroom Authors: Amante García, Beatriz; Martínez Martínez, María del Rosario 2013-05-07T11:07:59Z http://hdl.handle.net/2117/19115 Title: Towards methodological improvement in the Spanish studies Authors: Amante García, Beatriz; Martínez Martínez, María del Rosario 2013-05-07T10:51:03Z http://hdl.handle.net/2117/19114 Title: A proposal to improve your evaluation skills Authors: Amante García, Beatriz; Martínez Martínez, María del Rosario 2013-05-07T10:19:24Z http://hdl.handle.net/2117/19081 Title: Gaseous emissions from ceramics manufactured with urban sewage sludge during firing processes Authors: Cusidó Fàbregas, Joan Antoni; Cremades Oliver, Lázaro Vicente; González Benítez, María Margarita Abstract: The re-use of sewage sludge without any treatment as primary material—mixed with clays—in order to obtain structural ceramics for buildings has been successfully improved. In the Ecobrick® project, the firing of a mixture of specific percentages of three components (clays, sludges and forest debris) resulted in a lighter and more thermal and acoustic insulating brick, compared with conventional clay-bricks. Volatile organic compounds (VOC) emission from the manufacturing of ceramics is the most important aspect to control. In the Ecobrick® project VOC emissions were monitored by using a bench-scale furnace. The study was conducted using an EPA recommended sampling train and portable sampling tubes that were thermally desorbed and analyzed by gas chromatography/mass spectrometry. Drying of raw sewage-sludge and firing processes were considered separately. In this paper, we present VOC emissions coming from the firing step of the Ecobrick® production 2013-05-02T13:35:32Z http://hdl.handle.net/2117/19057 Title: Influence of chlorothalonil on the removal of organic matter in horizontal subsurface flow constructed wetlands Authors: Casas Zapata, Juan C.; Ríos, Karina; Florville Alejandre, Tomás; Morató Farreras, Jordi; Peñuela, Gustavo 2013-04-30T13:13:44Z http://hdl.handle.net/2117/19049 Title: Estudio comparativo de la carrera académica del profesorado en las universidades públicas politécnicas españolas desde un perspectiva de género Authors: Marqués Calvo, M. Soledad; Salán Ballesteros, Maria Núria; Gómez, Silvia 2013-04-30T10:43:15Z http://hdl.handle.net/2117/18862 Title: Multidisciplinary study of tutoring using virtual characters and second life Authors: Amante García, Beatriz; Campo Sud, David del; Martínez Martínez, María del Rosario Abstract: In this article we present the planning and methodology followed in order to apply virtual tutoring sessions in different subjects and universities. The Second Life environment, together with the Voki speaking avatars will be employed. It is a multidisciplinary study that includes personal and collective tutoring sessions, answering key questions through animated avatars, virtual labs, and posters exhibition for peer-evaluation. From a survey run among the students it is concluded that most of them are willing to learn and try this kind of tutoring sessions, but at the same time some feel skeptical about its utility 2013-04-18T10:23:24Z http://hdl.handle.net/2117/18786 Title: Collaborative environments, a way to improve quality in higher education Authors: Rodríguez Donaire, Silvia; Amante García, Beatriz Abstract: The aim of this research is to observe how Collaborative Web-Based Environments (CWBEs) foster higher education quality improvement by means of enhancing students' teamwork skills, the use of CWBEs and the use of teaching methodologies, particularly PBL. A survey was conducted in three different subjects with similar characteristics in courses held at the ETSEIATBarcelonaTECH among a sample of 98 students. Results shed light on two aspects which improve teamwork performance: 1) the functionality of CWBEs and 2) the ability and motivation of students in these environments. 2013-04-15T10:20:09Z