Multi-domain simulation for the holistic assessment of the indoor environment: A systematic review

Autores:
Mateus Bavaresco, Veronica Gnecco, Ilaria Pigliautile, Cristina Piselli, Matheus Bracht, Roberta Cureau, Larissa Pereira de Souza, Matheus Geraldi, Nathalia Vasquez, Claudia Fabiani, Enedir Ghisi, Roberto Lamberts, Ana Paula Melo, Anna Laura Pisello
Resumo:

The multi-domain comfort theory investigates human-environmental perception and comfort by accounting for people's simultaneous exposure to various stimuli from different physical domains. Multi-domain studies describe human reactions to environmental conditions, including indoor occupants' behaviour and comfort. Building simulation is essential to analyse Indoor Environmental Quality (IEQ) and energy consumption in buildings. Introducing multi-domain comfort theories in building simulation practices could improve reliability. A systematic literature review investigated the approaches adopted in multi-domain building simulation during the last decade. The simulation studies discussed herein combine two or more domains related to IEQ in buildings, indicating the state of the art, limitations, and potential trends. This review showed that multi-domain simulation comprising all the IEQ domains is still missing due to its complexity and the lack of standards for multi-domain comfort. Simulation studies mostly involved two domains - thermal and air quality or thermal and visual. The most common engines and software combinations were presented, and related interoperability issues were discussed. The most common inputs and outputs for each domain were described to identify common ground where to start building up an efficient multi-domain simulation framework. The role of the quality report was also addressed, pointing out that the current validation procedures are incipient. Advancing multi-domain simulation knowledge concurrently with understanding multi-domain comfort growth would benefit researchers and practitioners. Therefore, multi-domain simulations can become a powerful tool to guide occupant-centric building design and operation.

Ano:

Translating thermal performance into thermal resilience: a simulation framework to assess buildings and communities

Building design and operation is undergoing a mentality shift driven by the increasing materialization of long-known threats from climate change. In this context, optimization of performance and cost gives space to also consider resilience. This work aims to propose a simulation framework to quantify and improve the thermal resilience of buildings and communities against overheating threats.

Metamodel to predict annual cooling thermal load for commercial, services and public buildings: A country-level approach to support energy efficiency regulation

Autores:
Rayner Maurício e Silva Machado, Matheus Soares Geraldi, Mateus Bavaresco, Marcelo Salles Olinger, Larissa Pereira de Souza, Artur Martins Kamimura, Natasha Hansen Gapski, Tiago de Castro Quevedo, Liége Garlet, Ana Paula Melo, Roberto Lamberts
Resumo:

The energy sector significantly impacts the environment, with energy production contributing to greenhouse gases emissions and climate change. In Brazil, buildings account for a substantial portion of energy consumption, making energy efficiency essential for sustainable development. Building simulation is an efficient way to provide valuable insights into the thermal performance of buildings, but it requires expertise, time, and computational resources. To overcome these simulation constraints, metamodeling has emerged as an easy-to-use and fast-response alternative to analyse the thermal performance of buildings. This study focuses on developing a metamodel to predict cooling thermal loads in Brazil's commercial, services, and public buildings, supporting the country's building energy efficiency labelling program. It is expected from the metamodel a high capacity to reproduce the variability of climates, contexts, and heterogeneity of buildings from a country-level perspective. A parametric sampling process was used to develop a comprehensive simulated database considering several variations of building-related, occupancy patterns, and weather parameters. The metamodel was trained, validated and tested using optimisation techniques and an artificial neural network. Afterwards, it was compared with actual models, considering different typologies and climates. While the metamodel demonstrates high accuracy and generalisation, limitations were found regarding its application in warmer temperatures and complex building shapes. Further refinement is needed to improve its applicability and reliability in real-world scenarios. The proposed metamodel offers a practical and widely applicable tool for supporting energy code compliance and energy efficiency assessment in buildings.

Ano:

Implementation of Desk Fans in Open Offices in Brazil: Proposition for Optimizing Thermal Comfort and Energy Consumption

The global warming scenario drives nations to adopt strategies to reduce greenhouse gas emissions and electricity demand. Buildings in Brazil account for more than 50% of the country's electricity consumption, and cooling is one of the main end-uses in commercial buildings. One way to reduce this consumption is to extend the setpoint temperature of cooling systems and use personal conditioning systems (PCS) to maintain occupants’ thermal comfort.

A repository of occupant-centric control case studies: Survey development and database overview

Autores:
Clara-Larissa Lorenz, Maíra André, Oliver Abele, Burak Gunay, Jakob Hahn, Philipp Hensen, Zoltan Nagy, Mohamed M. Ouf, June Young Park, Nikhil Singh Yaduvanshi, Clayton Miller
Resumo:

Occupant-centric controls (OCC) and operations have emerged as a key concept in shifting the focus from conventional building- (or system-) centric operations to a more occupant-centric approach. Despite the potential of OCC to meet occupants’ demands and bridge buildings’ energy performance gap, its implementation in real-world settings has been limited. In addition, there is a lack of standardization in methodologies and terms to facilitate meaningful comparisons among case studies. Therefore, this paper aims to present a repository of OCC case studies, offering a platform for standardization and presenting key information about practical implementations of these strategies in real-world scenarios. To accomplish this, descriptors, terms, and concepts about OCC case studies were discerned through a literature review. These elements were systematically integrated into a structured survey to capture comprehensive information on OCC field study implementations. This paper provides an overview of the survey structure and insights into the current dataset, which comprises a total of 58 OCC case studies. By publishing the case study repository, we intend to establish standard categories for OCC strategies and to offer researchers and practitioners a database through which they can understand trends and possibilities for implementing OCC strategies.

Ano:

User satisfaction evaluation of indoor environmental quality for office buildings

To ensure enclosed spaces with comfortable conditions and satisfactory for people, the indoor environment needs to be evaluated, which requires aggregating data to provide a picture of overall building performance. Recommendations for assessing Indoor Environmental Quality (IEQ) satisfaction point towards advanced methods in new and innovative approaches, suggesting assessing it from the combination of quantitative and qualitative data that provide empirical information to improve the indoor environment.

O impacto das modificações pós-ocupação no desempenho térmico de HIS: estudo de caso em Uberlândia-MG

Since 2009, more than four million social housing units (HIS) have been delivered in Brazil. Despite the positive impact on the housing deficit, HIS are often criticized for their design and construction quality. Residents report problems like thermal discomfort, high maintenance costs, lack of security, and the need of more built-up area. Once dissatisfied, the users modify the buildings in order to meet their demands.

Análise do microclima urbano através de modelagem computacional: estudo de caso em Balneário Camboriú-SC

The urban heat islands are an urban climate phenomenon defined by the positive difference between the air temperature of an urban area to a non-urban one. Factors such as geometry, materiality, pollution, and vegetation influence the intensity of urban climatic phenomena. This study aims to evaluate the effect of geometry and solar reflectance of urban surfaces on the microclimate of a Brazilian coastal city. The methodology is a case study of two areas with different geometries, representing the central region of Balneário Camboriú, Santa Catarina.

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