Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The Impact of Ventilation Rate on Mitigating the Overheating Risk in Light Steel Framing and Hollow Brick Masonry Buildings
https://orcid.org/http://orcid.org/0000-0003-4324-7006
https://orcid.org/http://orcid.org/0000-0002-9846-6081
https://orcid.org/http://orcid.org/0000-0002-5456-1642
https://orcid.org/http://orcid.org/0000-0002-6295-1333
Humanity is facing unprecedented challenges driven by climate change. In this context, the building sector is responsible for approximately a third of the total energy consumption and a quarter of greenhouse gas emissions. Ventilation, either natural or mechanical (without air conditioning), can be a sustainable strategy for mitigating the overheating risk in buildings. However, if it is used inappropriately and/or without taking into account the nature of the building construction solution, it could even have the opposite effect, possibly resulting in an increase in the energy demand for air conditioning. Therefore, it is urgent to study an appropriate alignment between construction solutions and ventilation systems to enhance the energy efficiency of buildings.
This research aims to contribute to the knowledge increase on this subject by comparing the indoor air temperature of two construction systems when subjected to different ventilation rates and schedules. Two full-scale test cells were used: one built with a Light Steel Framing (LSF) solution and the other with a concrete frame structure combined with Hollow Brick Masonry (HBM). An experimental monitoring campaign was carried out during the cooling season in order to analyse the indoor air temperature and overheating risk of the two test cells, as well as the responsiveness of the two construction systems considering different ventilation rates and operation schedules (continuous or night ventilation).
Overall, the LSF test cell showed higher daily temperature fluctuations with continuous ventilation, confirming that it is more dependent on the outside weather conditions than the HBM test cell. However, in the night ventilation scenario, both test cells yielded an equivalent behaviour in terms of daily temperature amplitude.
The Impact of Ventilation Rate on Mitigating the Overheating Risk in Light Steel Framing and Hollow Brick Masonry Buildings
https://orcid.org/http://orcid.org/0000-0003-4324-7006
https://orcid.org/http://orcid.org/0000-0002-9846-6081
https://orcid.org/http://orcid.org/0000-0002-5456-1642
https://orcid.org/http://orcid.org/0000-0002-6295-1333
Humanity is facing unprecedented challenges driven by climate change. In this context, the building sector is responsible for approximately a third of the total energy consumption and a quarter of greenhouse gas emissions. Ventilation, either natural or mechanical (without air conditioning), can be a sustainable strategy for mitigating the overheating risk in buildings. However, if it is used inappropriately and/or without taking into account the nature of the building construction solution, it could even have the opposite effect, possibly resulting in an increase in the energy demand for air conditioning. Therefore, it is urgent to study an appropriate alignment between construction solutions and ventilation systems to enhance the energy efficiency of buildings.
This research aims to contribute to the knowledge increase on this subject by comparing the indoor air temperature of two construction systems when subjected to different ventilation rates and schedules. Two full-scale test cells were used: one built with a Light Steel Framing (LSF) solution and the other with a concrete frame structure combined with Hollow Brick Masonry (HBM). An experimental monitoring campaign was carried out during the cooling season in order to analyse the indoor air temperature and overheating risk of the two test cells, as well as the responsiveness of the two construction systems considering different ventilation rates and operation schedules (continuous or night ventilation).
Overall, the LSF test cell showed higher daily temperature fluctuations with continuous ventilation, confirming that it is more dependent on the outside weather conditions than the HBM test cell. However, in the night ventilation scenario, both test cells yielded an equivalent behaviour in terms of daily temperature amplitude.
The Impact of Ventilation Rate on Mitigating the Overheating Risk in Light Steel Framing and Hollow Brick Masonry Buildings
https://orcid.org/http://orcid.org/0000-0003-4324-7006
https://orcid.org/http://orcid.org/0000-0002-9846-6081
https://orcid.org/http://orcid.org/0000-0002-5456-1642
https://orcid.org/http://orcid.org/0000-0002-6295-1333
Humanity is facing unprecedented challenges driven by climate change. In this context, the building sector is responsible for approximately a third of the total energy consumption and a quarter of greenhouse gas emissions. Ventilation, either natural or mechanical (without air conditioning), can be a sustainable strategy for mitigating the overheating risk in buildings. However, if it is used inappropriately and/or without taking into account the nature of the building construction solution, it could even have the opposite effect, possibly resulting in an increase in the energy demand for air conditioning. Therefore, it is urgent to study an appropriate alignment between construction solutions and ventilation systems to enhance the energy efficiency of buildings.
This research aims to contribute to the knowledge increase on this subject by comparing the indoor air temperature of two construction systems when subjected to different ventilation rates and schedules. Two full-scale test cells were used: one built with a Light Steel Framing (LSF) solution and the other with a concrete frame structure combined with Hollow Brick Masonry (HBM). An experimental monitoring campaign was carried out during the cooling season in order to analyse the indoor air temperature and overheating risk of the two test cells, as well as the responsiveness of the two construction systems considering different ventilation rates and operation schedules (continuous or night ventilation).
Overall, the LSF test cell showed higher daily temperature fluctuations with continuous ventilation, confirming that it is more dependent on the outside weather conditions than the HBM test cell. However, in the night ventilation scenario, both test cells yielded an equivalent behaviour in terms of daily temperature amplitude.
The Impact of Ventilation Rate on Mitigating the Overheating Risk in Light Steel Framing and Hollow Brick Masonry Buildings
Lecture Notes in Civil Engineering
Berardi, Umberto (Herausgeber:in) / Figueiredo, António (Autor:in) / Almeida, Ricardo M. S. F. (Autor:in) / Vicente, Romeu (Autor:in) / Ferreira, Victor M. (Autor:in)
International Association of Building Physics ; 2024 ; Toronto, ON, Canada
23.12.2024
7 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Assessing and mitigating overheating in buildings
| SAGE Publications | 2019
Reinforcing Bar Splices in Hollow Brick Masonry
| British Library Conference Proceedings | 1997
Hollow brick masonry in building of houses
| Engineering Index Backfile | 1934
Earthqueake - Integral Masonry System tested in Lima: Buildings performances of Adobe & Hollow Brick
| BASE | 2010