101,910 research outputs found
Energy resilience to climate change of the school building stock in the Mediterranean area: the case of Apulia Region
Get PDFLe crescenti conseguenze negative della crisi climatica richiedono ulteriori studi sulla relazione tra i cambiamenti climatici e l'ambiente costruito, in quanto il settore delle costruzioni sembra essere tra i più impattanti, pur mostrando un'elevata vulnerabilità agli effetti dei cambiamenti climatici. Di conseguenza, questo campo di ricerca è chiamato a svolgere un ruolo cruciale, in quanto le scelte dei politici in merito alle politiche di mitigazione e adattamento sono significativamente influenzate dai progressi della comunità scientifica. Tuttavia, sebbene la letteratura sull'argomento sia cresciuta esponenzialmente negli ultimi anni, sembra ancora limitata rispetto all'ampiezza del problema, restando legata a specifiche tipologie edilizie, come quelle residenziali e per uffici, ma trascurandone altre. Questo lavoro si propone di fornire un avanzamento scientifico in questo campo, indagando una tipologia edilizia ancora poco affrontata in letteratura. Infatti, la presente tesi si propone di esplorare la resilienza energetica ai cambiamenti climatici del patrimonio edilizio scolastico dell'area mediterranea, partendo da una classificazione tipologica e tecnologica, proseguendo con uno studio sul campo dello stato energetico attuale e terminando con un'indagine predittiva della resilienza ai cambiamenti climatici, basata su simulazioni energetiche eseguite per edifici rappresentativi, nonché esplorando potenziali soluzioni. L’analisi si concentra sulle scuole di proprietà comunale (scuole dell'infanzia, primarie e secondarie di primo grado) situate nella Regione Puglia, coinvolgendo un campione di edifici mai esplorato in precedenza in letteratura. La ricerca persegue due obiettivi principali. Il primo è quello di fornire un quadro completo delle condizioni attuali del patrimonio edilizio scolastico pugliese, sulla base dei dati reali attuali. I risultati ottenuti saranno senza dubbio utili per aiutare le amministrazioni locali ad avere una visione d'insieme delle principali caratteristiche e delle reali condizioni di tale patrimonio, base fondamentale per la pianificazione di programmi di intervento. Il secondo è quello di valutare l'impatto dei cambiamenti climatici sulle scuole a livello di edificio, con l'obiettivo di sensibilizzare i decisori politici sulle criticità legate alle mutate condizioni climatiche, richiamando l'attenzione sull'importanza di valutare attentamente le soluzioni di retrofit.The growing adverse consequences of the climate crisis require an increase of studies concerning the relationship between climate change and the built environment, since the construction field appears to be among the most impactful sectors, while showing a high vulnerability to the effects of climate change. Accordingly, this research field is called upon to play a crucial role, as policymakers' choices concerning mitigation and adaptation policies are significantly influenced by the research advancements of the scientific community. However, although the body of literature on the topic has been growing exponentially in recent years, it still seems limited compared to the breadth of the problem, remaining associated to specific building types, such as residential and office buildings, but neglecting others. This thesis aims to provide scientific advancement in this field by investigating a building typology that is still poorly addressed in the literature. Indeed, the present dissertation aims to explore the energy resilience to climate change of a school building stock in the Mediterranean area, starting from a typological and technological classification, continuing with a field study of the current energy status, and ending with a predictive investigation of climate change resilience, based on energy simulations run for representative buildings, as well as exploring potential solutions. The whole analysis is focused on the municipally owned schools (pre-schools, primary and lower secondary schools) located in the Apulia Region, involving a sample of buildings never previously explored in the literature. Two main objectives are pursued in conducting the research. The former is to provide a comprehensive overview of the current condition of Apulian school building stock, based on current actual data. The results obtained will be undoubtedly useful in helping local municipalities get an overview of the main features and actual conditions of such heritage, which is a fundamental basis for planning intervention programs. The latter is to assess the impact of climate change on schools at the building level, with the aim of increasing the policymaker’s awareness of the critical issues related to changing climatic conditions, drawing attention to the importance of carefully evaluating retrofit solutions
A sensitivity analysis approach: Simulation tools as support at the early stages of low energy housing design
No full textDigital Twin and Cloud BIM-XR Platform Development: From Scan-to-BIM-to-DT Process to a 4D Multi-User Live App to Improve Building Comfort, Efficiency and Costs
Get PDFDigital twins (DTs) and building information modelling (BIM) are proving to be valuable tools for managing the entire life cycle of a building (LCB), from the early design stages to management and maintenance over time. On the other hand, BIM platforms cannot manage the geometric complexities of existing buildings and the large amount of information that sensors can collect. For this reason, this research proposes a scan-to-BIM process capable of managing high levels of detail (LODs) and information (LOIs) during the design, construction site management, and construction phases. Specific grades of generation (GOGs) were applied to create as-found, as-designed, and as-built models that interact with and support the rehabilitation project of a multi-level residential building. Furthermore, thanks to the sharing of specific APIs (Revit and Autodesk Forge APIs), it was possible to switch from static representations to novel levels of interoperability and interactivity for the user and more advanced forms of building management such as a DT, a BIM cloud, and an extended reality (XR) web platform. Finally, the development of a live app shows how different types of users (professionals and non-expert) can interact with the DT, in order to know the characteristics with which the environments have been designed, as well as the environmental parameters, increasing their degree of control, from the point of view of improving comfort, use, costs, behaviour, and good practices. Finally, the overall approach was verified through a real case study where the BIM-XR platform was built for energy improvements to existing buildings and façade renovations
An accurate approach to evaluate the solar control strategies and the artificial light load within building simulation
No full textHow to evaluate the daylight strategies and the artificial light load within building energy simulation programme: an accurate approach
No full textAn overview on energy balance for a building model in temperate climate with three different simulation tools
No full textNowadays the number of environmental assessment tools (building energy simulation software) available on the market is very large. The aim of this paper is to evaluate the analogies and the differences of three common software (TRNSYS, IDA ICE and ESP-r) analysing a standard cellular model. Using a uniform set of initial data and hypothesis, the test foresees a detailed comparison in terms of different methods of evaluation for the energy balance of a building in a temperate climate. The model is design in a simplified way to achieve consistence results using the three different simulation tools (one thermal zone, fixed construction technology and ideal supply air system). As climatic conditions the same source weather file (TMY2) for Milan was used, considering it as a representative city of Italy for temperate climate with moderate external temperature. The results are based on monthly analysis for the complete year. The study aimed to show how different simulation methodologies work and the effects they have on the building energy performances evaluation. Furthermore, the benefits of using dynamic simulation tools should be analysed in order to identify how the design process could be affected by them, especially today where the request of sustainable and environmental friendly building is increased
Making mountain huts future-proof – consistency analysis to improve adaptation and resilience of the mountain hut network
No full textMountain huts form a continuous network throughout the alps. Originally built as a support for
scientific exploration, it continues to serve as a vital resource for mountain visitors, maintaining
much of their original form. Over time, the motives driving people to visit huts diversified, encompassing
sport activity, tourism and scientific research. This trend has led to an increasing
number of people visiting the mountains. Concurrently, aggravating environmental changes in
the Alps, with average temperatures increasing almost twice as fast as the rest of the northern
hemisphere, increase frequency of natural hazards, such as landslides or avalanches. These
developments raise the risk for mountain visitors while threatening these delicate ecosystems
and their built environment. Mainly built before 1980s, mountain huts need to adapt to these dynamic
social and environmental changes. The characteristics of huts and their surroundings are
different from urban settings, requiring a specific renovation framework that considers all these
peculiarities. This article explores the state of the art of this architectural typology, investigating
a cluster of 749 mountain huts owned by the Italian Alpine Club (CAI), studying their management
methods and the most recent approaches on alpine huts renovation. This study aims to
analyse the unique architectural typology of mountain huts with an interdisciplinary approach,
considering the feasibility of technical aspects while accounting for environmental, economic,
and social parameters. This will be the baseline to establish measurable criteria to aggregate
existing alpine infrastructure and to finally create a comprehensive guideline for functional sustainable
renovation and ultimately to increase the climate adaptation and resilience of the alpine
built environment
From building energy modeling to urban building energy modeling: A review of recent research trend and simulation tools
No full textInitiatives aimed at retrofitting the existing buildings stock and constructing Zero Carbon Community (ZCC) have
been recognized as highly effective measures for reaching the zero emission carbon goals set by the EU Commission by 2050. The Building Energy Modeling approach focuses only on typical individual building and it is hardly suitable for assessing the performance and the mutual interaction of a group of interconnected buildings. In this case the application of Urban Building Energy Modeling (UBEM) is required. Research on UBEM constitutes the foundation for reducing the energy needs of the built environment; however, there is currently a lack of knowledge on UBEM concept, workflow and related simulation tools. This paper has twofold objectives; first presents an in-depth bibliometric analysis, through CiteSpace, to analyze the developmental trajectory of
emerging simulation UBEM method. The analysis encompasses the distribution of authors collaborations,
geographic and institutional cooperation in publications and research hotspots. Based on this, the paper summarizes the development trends and potential directions for research in the UBEM field. Furthermore, as a second objective, the paper provides a comprehensive analysis of the main UBEM tools with focus on the input and output data, simulation engine and data workflow. The final scope of this study is to offer to urban planners and policymakers a comprehensive framework as a starting point for approaching zero-carbon communities’ from both the concepts and the simulations analysis point of view
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