Modelling of Indoor Air Quality and Thermal Comfort in Passive Buildings Subjected to External Warm Climate Conditions DOI Creative Commons
Eusébio Conceição, João Gomes, Ma Inês Conceição

et al.

Atmosphere, Journal Year: 2024, Volume and Issue: 15(11), P. 1282 - 1282

Published: Oct. 25, 2024

Air renewal rate is an important parameter for both indoor air quality and thermal comfort. However, to improve comfort, the be used, in general, will depend on outdoor temperature values. This article presents modelling of comfort occupants a passive building subject climate with warm conditions. The ventilation shading strategies implemented interior spaces are then considered, as well use underground space storing cooled air. evaluated using carbon dioxide concentration, Predicted Mean Vote index. geometry building, complex topology, generated numerical model. simulation performed by Building Thermal Response software, considering building’s materials, ventilation, occupancy, among others. studied circular auditorium. auditorium divided into four semi-circular auditoriums central space, vertical glazed windows horizontal devices its entire outer surface. Typical summer conditions existing Mediterranean-type environment were considered. In this work, two cases simulated: Case 1, occupation verified all considered one; 2, only each one works independently. For cases, three applied: A, without geothermal devices; B, device device; C, devices. airflow contributes improving throughout day occupants, especially morning. level, mainly afternoon.

Language: Английский

Assessing Overheating Risks in Moderately Insulated Irish Social Housing: Analysis of Building Energy Ratings and Indoor Temperature Profiles DOI Creative Commons
Fahimehsadat Sajadirad, Richard O’Hegarty, Oliver Kinnane

et al.

Energies, Journal Year: 2025, Volume and Issue: 18(6), P. 1381 - 1381

Published: March 11, 2025

As buildings become more energy-efficient in cold climates, the unintended consequence of increased overheating risk during warmer seasons necessitates attention. In this context, there is an absence research addressing assessment risks residential Ireland. This study assesses data from a sample 1100 social housing units Dublin, majority which have Building Energy Rating (BER) C, representing moderately insulated dwellings. Using indoor temperature and outdoor climate reports for 2022, evaluates based on both static adaptive criteria living room zone The methods used include Chartered Institution Services Engineers (CIBSE) Guide A Passivhaus Institute standard, while follow CIBSE TM59. findings reveal discrepancies assessments: overall, 4% surpass thresholds under A. contrast, 41% dwellings exceeded standard May to September 2022. Adaptive criteria, however, indicated minimal instances, at 0.4%. These results highlight how different methodologies influence conclusions. impact two-fold. First it further strengthens existing literature questions appropriateness methods. Secondly, shows that set minimal.

Language: Английский

Citations

0
A Multi-Directional Pyranometer (CUBE-i) for Real-Time Direct and Diffuse Solar Irradiance Decomposition DOI Creative Commons

Dongseok Lee

Remote Sensing, Journal Year: 2025, Volume and Issue: 17(8), P. 1336 - 1336

Published: April 9, 2025

Conventional decomposition models (empirical and numerical models) estimate direct normal irradiance (DNI) diffuse horizontal (DHI) from global (GHI) based on empirical correlations or physical equations. These are designed for long-term averaged data, typically at an hourly longer timescale, making them less suitable real-time estimations with shorter time intervals. To address this limitation, study applies a data-driven approach utilizing multi-directional measurements develops DNI estimation model Deep Neural Network (DNN). The proposed CUBE-i system estimates using five directional pyranometers. measurement data were obtained the NREL site in Golden, Colorado, USA. method demonstrates high accuracy 1 min resolution, achieving R2 = 0.997 RMSE 20.2 W/m2. Furthermore, estimating both plane, outperforms conventional (Erbs, Reindl, Watanabe), up to times lower higher values. While further considerations regarding sensor accuracy, applicability different regions, installation requirements necessary, validates feasibility of compact cost-effective pyranometer system. This advancement enhances its potential widespread applications solar energy systems, building management, meteorology, environmental research.

Language: Английский

Citations

0
Comprehensive in-situ assessment of glazing systems: thermal properties, comfort impacts, and machine learning-based predictive modelling DOI Creative Commons
Saman Abolghasemi Moghaddam, Michael Brett, Manuel Gameiro da Silva

et al.

Building and Environment, Journal Year: 2025, Volume and Issue: unknown, P. 113027 - 113027

Published: April 1, 2025

Language: Английский

Citations

0
Strategies for Driving the Future of Educational Building Design in Terms of Indoor Thermal Environments: A Comprehensive Review of Methods and Optimization DOI Creative Commons
Shihai Wu, Pengzhi Zhou, Ying Xiong

et al.

Buildings, Journal Year: 2025, Volume and Issue: 15(5), P. 816 - 816

Published: March 4, 2025

This comprehensive review critically examines current methodologies and optimization strategies for designing indoor thermal environments in educational buildings amid the challenges of global climate change energy demands. The paper evaluates existing research methods, such as numerical simulations, data-driven models, field measurements, revealing significant limitations addressing complex dynamic nature environments. It highlights overemphasis on efficiency while neglecting user comfort individual differences, students’ physiological psychological needs. underscores necessity integrating human-centered design strategies, adaptability, interdisciplinary approaches to improve building performance enhance student well-being. Future should focus developing multimodal data fusion frameworks, applying AI-based optimization, incorporating emerging technologies like BIM IoT management. By advocating more adaptable sustainable environment this study provides a foundation advancing response crises.

Language: Английский

Citations

0
Modelling of Indoor Air Quality and Thermal Comfort in Passive Buildings Subjected to External Warm Climate Conditions DOI Creative Commons
Eusébio Conceição, João Gomes, Ma Inês Conceição

et al.

Atmosphere, Journal Year: 2024, Volume and Issue: 15(11), P. 1282 - 1282

Published: Oct. 25, 2024

Air renewal rate is an important parameter for both indoor air quality and thermal comfort. However, to improve comfort, the be used, in general, will depend on outdoor temperature values. This article presents modelling of comfort occupants a passive building subject climate with warm conditions. The ventilation shading strategies implemented interior spaces are then considered, as well use underground space storing cooled air. evaluated using carbon dioxide concentration, Predicted Mean Vote index. geometry building, complex topology, generated numerical model. simulation performed by Building Thermal Response software, considering building’s materials, ventilation, occupancy, among others. studied circular auditorium. auditorium divided into four semi-circular auditoriums central space, vertical glazed windows horizontal devices its entire outer surface. Typical summer conditions existing Mediterranean-type environment were considered. In this work, two cases simulated: Case 1, occupation verified all considered one; 2, only each one works independently. For cases, three applied: A, without geothermal devices; B, device device; C, devices. airflow contributes improving throughout day occupants, especially morning. level, mainly afternoon.

Language: Английский

Citations

0