1,387 research outputs found

    Smart cool mortar for passive cooling of historical and existing buildings: experimental analysis and dynamic simulation

    Get PDF
    In order to mitigate Urban Heat Island Effect and global warming, both governments and scientific community are working to reduce energy consumptions. In particular, the construction sector has a high potential in reducing energy demand, by means of both active and passive solutions. The European building stock is mainly composed by existing buildings as well as historical ones, which happens to be the less energy efficient ones. Moreover, retrofit operations are more complex on historical buildings, due to strict regulations for the preservation of such historical and cultural heritage. Considering this challenge, in this work we described and in lab analyzed possible passive solutions specifically designed for historical and existing buildings. In particular, we developed innovative cool colored mortars and tested them in lab, as well as investigated cool colored mortars, cool clay tiles and cool natural gravels performance when applied as envelope and roof elements, by means of dynamic simulation

    How subjective and non-physical parameters affect occupants’ environmental comfort perception

    Get PDF
    Employees’ wellbeing and comfort perception demonstrated to largely influence their productivity and tolerability of slight thermal discomfort conditions in the working spaces. Their whole comfort perception indeed depends on several parameters related to physical boundary conditions but also to the adaptation capability of occupants themselves and other personal, difficult to measure, variables. According to the available standards and regulations, only physical and measurable environmental parameters must be considered to evaluate occupants’ comfort conditions. Therefore, non-measurable factors such as socio-psychological, physiological, medical ones are currently not systematically considered. The present work aims to identify possible benefits in terms of occupants’ comfort perception due to non-physical strategies aimed at improving the work-environment quality and livability. To this aim, the environmental multi-physics and multi-domain performance of a mixed industry-office building is investigated through coupled in-field microclimate monitoring and questionnaires campaigns. The experimental microclimate monitoring and survey campaign were carried out to understand (i) the realistic indoor environmental conditions in terms of physical and measurable parameters and (ii) the personal perceptions and attitudes of the occupants with respect to those same ambient parameters, including also acoustic, lighting and medical investigation. Moreover, the collected experimental data were used to determine occupants’ comfort level through the classic comfort models, to be compared to the identified role of non-physical parameters on occupants’ final perception about the indoor environment. The main results show that non-measurable factors induced by virtuous company policy to improve employees’ working environment are effectively able to positively influence their whole-comfort perception even if the majority of workers do not have the opportunity to control their working environment. In fact, the consolidated comfort theories underestimate people satisfaction, as demonstrated by more than the 80% employees, who declared to be positively influenced by the pleasant aesthetics and livability of the workplace. The year-round experimental campaign demonstrated the need to further investigate the key role of non-physical parameters for possible incorporation into whole-comfort prediction models and standards. The role of such strategies could therefore be realistically considered as energy saving opportunities since they make building occupants much more open to tolerate slight uncomfortable conditions

    Outdoor thermal and visual perception of natural cool materials for roof and urban paving

    Get PDF
    Given the acknowledged thermal performance of natural light color gravels applied as cool roof and cool urban paving, this work is aimed at investigating if such behavior is perceivable by pedestrians, who are questioned in this paper about their visual and thermal comfort perception. In fact, there are still related aspects to analyze, in order to optimize their application and provide a comfortable space for users, both on the thermal and the visual point of view. Therefore, the question that this work wants to answer is: given their intrinsic characteristics, do these materials create a sensitive thermally and visually more comfortable environment for pedestrians? In order to address this uninvestigated issue, users’ judgment about visual and thermal comfort of these surfaces is considered, also by comparing them with grassland and asphalt. Also, the statistical correspondence between physical properties of such materials and possible correspondence with respect to human perception with varying weather conditions is analyzed. Given the relatively high reflectance of these materials, it appears particularly important to evaluate these aspects, to consciously apply them as urban paving or roof covering by optimizing their natural passive cooling potential. In this preliminary study, users’ response to these surfaces is evaluated by mean of field surveys, both on the thermal and the visual evaluation, and contemporary in-field measurements of surface parameters. Also, human perception with respect to these high-reflectance surfaces’ is compared with the one related to grassland and asphalt, with varying weather conditions. Then, a statistical analysis is performed to investigate the differences among different gravels, grassland and asphalt, based on surveys’ results. The results show how pedestrians, questioned during summer days, prefer grassland, while asphalt is the less favorite surface both visually and thermally; there is a small difference between gravels’ types evaluation, while weather variability affect the preferences

    Portland Pub

    Get PDF

    Energy refurbishment of historical buildings with public function: pilot case study

    Get PDF
    AbstractIn the last few decades, an increasing attention has been paid to the enhancement of energy performance and indoor comfort conditions of historical buildings, where the architectural heritage and artistic value do not allow typical retrofit intervention. The need to enhance the energy efficiency and environmental sustainability of historic buildings is addressed in this paper, through energy modeling and dynamic simulation of a real building with the integration of renewable energy plants for building heating and cooling. The pilot case study is "Palazzo Gallenga Stuart", a historical university building located in Perugia, Italy. The energy performance of the building has been evaluated in order to reduce the building energy demand through the implementation of high-efficiency technologies in historic buildings. The increase of the energy efficiency of the building has been pursued through the improvement of the actual energy plants' technology by introducing a more effective heat pump plant, in order to prevent the use of visually impacting external units on building historic façade

    Diseño curricular por competencias para un programa privado de formación en psicoterapia psicoanalítica

    Get PDF
    El presente Proyecto de Innovación plantea un diseño curricular por competencias profesionales para un programa privado de formación en Psicoterapia Psicoanalítica. El diseño se ha realizado sobre la base del enfoque socioformativo planteado de Sergio Tobón, educador colombiano de gran trayectoria. Luego de la revisión y análisis de los documentos que posee el programa privado de formación en Psicoterapia Psicoanalítica, se procedió a plantear un perfil del egresado basado en competencias profesionales; y un cartel de capacidades e indicadores, aspectos metodológicos y lineamientos de evaluación, asociados a las áreas y cursos que actualmente posee el programa privado de formación en Psicoterapia Psicoanalítica. Además, se incluyen las necesidades educativas del Psicoanálisis, determinadas a través de entrevistas a expertos, así como referencias a la enseñanza del psicoanálisis en formaciones de Psicoterapia Psicoanalítica en Latinoamérica, aspectos que han nutrido el planteamiento de la propuesta.Tesi

    A importância da literatura traduzida para as comunidades surdas no contexto educacional de ensino bilíngue

    Get PDF
    Este trabalho tem como objeto de estudo o ensino da literatura para alunos surdos a partir da elaboração de uma proposta prática com a fábula “O pastor e as ovelhas”, obra esta acessível em Libras, registrada em vídeo. Nessa perspectiva, tem como objetivo geral refletir e propor práticas pedagógicas utilizadas na contação de histórias para que os alunos surdos possam ser representados na sua cultura, identidade e subjetividade. As ações partiram através de um plano de aula desenvolvido para aplicar no município de Belém- PB. Possui uma abordagem qualitativa, tendo como fundamento legal a Lei 10.436 de 24 de abril de 2002, regulamentada pelo decreto n° 5.626/05, e algumas considerações de Peixoto e Possebon (2018), que tratam da literatura surda como um importante instrumento de inserção social. A conclusão deste trabalho registra que a literatura trabalhada por meio da Língua de sinais é um grande passo para o processo de inclusão dos alunos surdos no dia-a-dia da sala de aula

    ENSINO DE LITERATURA PARA ALUNOS SURDOS: A ARTE DE APRENDER ATRAV?S DE MATERIAIS DID?TICOS BILINGUES

    Get PDF
    O referido trabalho abordar de assuntos de desenvolvimento Educacional e Social relacionados a produ??o de materiais did?ticos bil?ngues em libras / l?ngua portuguesa. O objetivo, ser? estimular a intera??o e a comunica??o entre alunos surdos e ouvintes, e tamb?m buscar desenvolver a??es que permitam a inclus?o do aluno surdo, utilizando praticas pedag?gicas que favore?am o aprendizado, estimulando a intera??o por parte de todos. O objeto de estudo ? o ensino da literatura para alunos surdos a partir da elabora??o de uma proposta pr?tica com a f?bula ?O pastor e as ovelhas?, a obra est? acess?vel em Libras, registrada em v?deo. Nessa perspectiva, tem como objetivo geral refletir e propor pr?ticas pedag?gicas utilizadas na conta??o de hist?rias para que os alunos surdos possam ser representados na sua cultura, identidade e subjetividade. A conclus?o deste trabalho registra que a literatura trabalhada por meio da L?ngua de sinais ? um grande passo para o processo de inclus?o dos alunos surdos no dia a-dia da sala de. Possui uma abordagem qualitativa, tendo como fundamento legal a Lei 10.436 de 24 de abril de 2002, regulamentada pelo decreto n? 5.626/05, e algumas considera??es de Peixoto e Possebon (2018), que tratam da literatura surda como um importante instrumento de inser??o social. A conclus?o deste trabalho registra que a literatura trabalhada por meio da L?ngua de sinais ? um grande passo para o processo de inclus?o dos alunos surdos no dia-a-dia da sala de aula.n?o h
    • …
    corecore