1,721,014 research outputs found
Phase Change Materials in concrete building elememts: a performance characterisation
No full textCoimbra 200
Active House and user-friendly visualization of sensors’ monitored data: VELUXlab, a real cognitive and smart NZEB prototype
No full textEuropean standards had already set Nearly Zero Energy Buildings (NZEB) as the current and mandatory goal for the construction market. Thus, several design strategies have been developed, in order to define the best practices towards NZEB targets: high performances of construction components, integrated with high energy-efficiency solutions for building systems. The Active House Vision and evaluative approach on buildings summarize the current protocols, accounting the three principles of Comfort, Energy and Environment to parametrically design and assess buildings until their "as-built" status. However, at that point of the design process, this evaluation relies mainly on design simulations, which do not properly consider the occupants' component, resulting in a gap between forecast and real performances. Since predictive models of users-building interactions are underway, the paper focuses on the building operation stage of existing and validated NZEBuildings, addressing the performance-gap as related to the final users' mismanagement of the building system (envelope and installations). Referring to cognitive buildings as sensors-equipped and smart Active Houses, the method proposes a user-friendly visualization of (big) real-data as a possible solution for the final-user training and awareness. This approach has been applied to the case study of VELUXlab, a real building prototype of Politecnico di Milano, already validated as the first Italian NZEB inside a university campus and "as-built" Active House. The outcomes of the paper enhance the potentials of the current knowledge and design practice to achieve a sustainable and healthier built environment, looking at the future but working today
Pannelli prefabbricati per chiusure ad inerzia artificiale programmata: problematiche tecnologiche.
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Timber-Based Transformations of the Built Environment: A Portfolio of Case Studies
No full textThe case studies collection is based on a literature review on architectural databases and a survey among the enterprises network. Twenty are the individual tabs among + 100 projects, these are selected mainly in the Italian context because of the high-density building stock composition perfectly fittable for this purpose. Finally, European projects choice starts from the Active House catalogue to point out these transformations sustainable approach. Case studies are catalogued according to the BAEIOU taxonomy described in chapter 1 : building Above, bEside, Inside, Outside, Under. Tabs show buildings before and after the intervention, their architectural concept, relation with the existing volume relationship and the timber-based system used for the extension, according to chapter 2 taxonomy
From Cognitive Buildings to Digital Twin: The Frontier of Digitalization for the Management of the Built Environment
Full text linkThe BIM holistic approach leads the AEC sector to manage all the different disciplines involved in the construction process. Its nDimensions, indeed, concern geometry, structure, systems (3D), work-site management—also in terms of time and costs—(4D, 5D), safety, energy performances (6D), maintenance and building management (7D). Besides the analysis of the state of the art, the n + 1 dome case study has been used to explain the advantages of BIM, sensitization and digital tool application for both product and asset management (PIM, AIM). Finally, the chapter illustrates the potential of Internet of Things (IoT), Machine Learning (ML) and Artificial Intelligence (AI), moving from Cognitive to Predictive buildings, nowadays conceived as the new perspective of 4.0 construction
Existing Building Transformation: Current Drivers, Issues, and Possibilities
No full textConstructions account for a huge amount of energy and resources consumptions, affecting our indoor and outdoor living environment with pollutant emissions, for our planet and ourselves. Besides the climate change, the constant development of urban areas leads to an increasing demand for building spaces (most of all, with residential functions), and, therefore, to the urban densification phenomenon. All those different needs require to be addressed by a set of integrated and valuable design strategies for the sustainable transformation—versus demolition—of the built environment, by combining the energy retrofit of existing buildings and the definition of newer and healthier constructions, with the choice of the most proper technologies and materials to interact with existing structures and envelopes. The chapter introduces the concept of additive building transformation and proposes a different taxonomic approach to the construction layering, foreseeing a new possible paradigm of action towards a sustainable “palinsesto”
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