Natural ventilation through double-skin facades in tall buildings

Download

index.pdf

Date

2014

Author

Danık, Sıla

Metadata

Show full item record

Item Usage Stats

88
views

93
downloads

Operation costs of buildings are getting higher as more complex systems are used and taller buildings are built. This issue has become more significant over the past few decades, having led to much research on less costly, more environment-friendly and energy-efficient techniques and technologies. Mechanical ventilation is one of the most critical and expensive parts of the operational systems especially in tall buildings, yet there are alternative ways to be provided to reduce our dependence on it. One of such technologies is the “double-skin facade” which promotes natural ventilation, reducing the energy consumption and eliminating the possible drawbacks of mechanical ventilation. This study aimed to examine the natural ventilation performance of double-skin facades in high-rise buildings and their role in creating environments in accordance with the occupant comfort requirements. After providing relevant information on the subject, a case study which is a tall building with a double facade entirely ventilated by natural means was presented and the efficiency of the adopted ventilation strategy was analyzed by collecting data related to occupant comfort. According to the results derived from the measurements, it was concluded that natural ventilation provided by double-skin facades is capable of satisfying acceptable conditions on its own, even though the application of mechanical ventilation might be inevitable in some cases.

Subject Keywords

Facades., Exterior walls., Exterior insulation and finish systems., Natural ventilation., Tall buildings

URI

http://etd.lib.metu.edu.tr/upload/12617126/index.pdf
https://hdl.handle.net/11511/23517

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Evaluation of natural ventilation systems in tall buildings considering altitude based environmental variations Karadağ, İlker; Zeytun Çakmaklı, Ayşem Berrin; Department of Building Science in Architecture (2014) Buildings relied on natural ventilation strategies alone for many centuries up to the post-World War II period in which cheap energy started to liberate architecture from its connection with the natural environment. Then, the economic downturn in the 1970s, fuelled by the worldwide energy crisis in 1973 drew the attention to reduction and conservation of energy, the response was the model of the sealed glass box with an acceptance of the air-conditioning system. This resulted in Sick Building Syndrome (SBS)...
Energy benchmarking for residential buildings Tereci, Aysegul; Elias Özkan, Soofia Tahira; Eicker, Ursula (2013-05-01) The impact of the urban form on the energy demand of buildings is difficult to quantify as, usually, the mutual shading of buildings in urban settings is not included in dynamic building simulations. As a result, there is not much information available on how the total primary energy demand is affected by the specific urban form.
A Study on the preliminary design of tall buildings: investigating structural components Çamlıbel, Gülçin; Ay, Bekir Özer; Department of Building Science in Architecture (2019) Tall buildings are built to respond to limited and high-cost urban land problem, and they became essential for urbanization which changes the sights of the cities. These buildings are huge investments, and keeping Net Floor Area (NFA) within acceptable limits while satisfying stiffness and strength requirements of the building is important; therefore, different structural systems are improved in order to overcome huge lateral load demands. Since simple design approaches and rule-of-thumb dimensioning method...
Performance based façades: retrofit strategies for energy efficiency and comfort in existing office buildings Jahed, Negin; Gürsel Dino, İpek; Department of Architecture (2018) The building industry is faced with a vast stock of existing buildings that are not sustainable and suffer from poor conditions in terms of physical problems. Energy retrofitting of existing buildings is considered as a rational strategy to minimize buildings’ environmental impact in the long term. Standard building retrofits focus on prescriptive measures to comply with energy standards rather than occupant requirements. In contrast, the proposed performance-based retrofit approach focuses, primarily on in...
The Integration of tall buildings with the urban environment: considering the key sustainability concepts Tohumcu, Tulu; Zeytun Çakmaklı, Ayşem Berrin; Baş Bütüner, Funda; Department of Building Science in Architecture (2014) As a result of physical, social and economic needs, demand for tall buildings is increasing worldwide. Due to their great size and large impacts on the urban environment, tall buildings, through careful design and urban integration, have the potential to improve the quality around them. Also, depending on their large area of influence, design considerations regarding sustainability and environmental integration of tall buildings need to be handled with more care than with other conventional buildings to pro...

Citation Formats

S. Danık, “Natural ventilation through double-skin facades in tall buildings,” M.S. - Master of Science, Middle East Technical University, 2014.