Estudio comparativo de los métodos para evaluar la transmitancia térmica en cerramientos opacos en el invierno mediterráneo

In Spain, most of the building stock has an inefficient energy performance. To change this situation, among other aspects, building envelopes must be analysed to change this situation. Thermal transmittance is one of the most significant properties related to building envelopes. However, in-situ evaluation methodologies for this property are designed for cold climates. On the other hand, theoretical methods have a high associated uncertainty. Therefore, it is necessary to study the application of these in situ methods in mild climates such as the Mediterranean one. This study analyses both theoretical and experimental methods. For this purpose, four case studies have been monitored during the winter. Results show that representative results could be obtained with adequate metrological conditions and stable environmental conditions.En España, la mayor parte del parque inmobiliario presenta un comportamiento energético deficiente. Para paliar dicha situación, se debe analizar, entre otros aspectos, su envolvente. De las diferentes propiedades que caracterizan los cerramientos, la transmitancia térmica es una de las más significativas. Sin embargo, las metodologías de evaluación in situ están planteadas para climas fríos, y los métodos teóricos tienen asociados una incertidumbre elevada. Ante esta circunstancia, resulta necesario estudiar su aplicación en climas suaves como el mediterráneo. El presente estudio analizó tanto los métodos teóricos existentes como los experimentales. Para ello se realizó una monitorización sobre cuatro casos de estudio durante el invierno. Los resultados pusieron de manifiesto que, con unas condiciones metrológicas correctas y una estabilidad de las condiciones ambientales, se pueden obtener resultados representativos

Methodology to determine the adequacy of indoor enclosures to use infrared thermography cameras and their application to medical emergency services

When an infrared thermography camera is used inside buildings, the characteristics of the place where the camera is used should be considered since results could be affected. For this reason, the development of methodologies is of great interest to know, as accurate as possible, whether these spaces have the appropriate conditions to use those cameras. The goal of this research is to establish the possibility of applying quality management methodologies, such as the Quality Function Deployment, very known and usually used in other scopes. Thus, the characteristics of enclosures belonging to medical emergency units in Spain were used as the object of experimentation given the importance of these services for society and the possibility of using directly useful technologies for diagnosis. After collecting the starting information based on references, the consultation to 21 experts, and the characteristics of these enclosures included in regulations, standards and recommendations in Spain, and also after applying the methodology mentioned above, the results showed that air conditioning (13.6/100), the thermal insulation of the room (11.9/100), windows (10.5/100), dimensions of spaces (10.2/100), and humidity (10.1/100) are the most influential factors. Within the scope of medical emergency services, those triage, consultation, examination, treatment, and observation rooms fulfilling what is specified by Spanish regulations, standards and recommendations obtained positive assessments (≥3/5) in most cases. It was therefore concluded that this methodology is of great interest to assess generally the suitability of indoor enclosures to use infrared thermography cameras, and regarding the specific case of the main enclosures of medical emergency services fulfilling with Spanish standards and recommendations, their characteristics make them suitable for using infrared thermography cameras, at least in relation to the fulfilment of basic conditions. © 2020 Elsevier B.V

Defectos en las Instalaciones Domésticas con Agua Debido a Disputas Legales: El Caso de Barcelona

Esta investigación permite conocer los defectos existentes en instalaciones con canalizaciones de agua de tres variantes de tipología constructiva residencial. Se recurre a informes periciales edificatorios debidos a las demandas de usuarios ante los tribunales. Se determinaron cuáles son las anomalías y los orígenes del fallo que actúan como agentes causales. Para cada uno de ellos se determinaron los casos presentes en la instalación en donde se ubican, así como las situaciones más recurrentes. Se desglosaron uno por uno todos los procesos patológicos que se constataron, los cuáles se definen como la interrelación constructiva entre los parámetros estudiados. De esta forma, los diferentes intervinientes en el sector edificatorio dispondrán del know-how necesario para evitar a futuro los errores de obra

Methods to Assess the Thermal Properties of the Building Envelope

The thermal properties of the building envelope are crucial in building energy performance. The variation of envelope thermal values (e.g. through the regulation of a country) directly influences building energy performance. © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG

Methodological Framework of Artificial Intelligence Algorithms and Generation of the Dataset

The analysis of the state-of-the-art methods to characterize thermal properties has shown the importance of the theoretical methods (both of stationary and periodic properties) and the difficulty to characterize the existing buildings correctly. © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG