Wind driven natural ventilation through multiple windows of a building: A computational approach

Bangalee, M. Z. I.; Lin, San‐Yih; Miau, Jiun‐Jih

doi:10.1016/j.enbuild.2011.11.025

Cited by 73 publications

(36 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Fig. 7 shows the air velocity comparison between the results of the microclimate CFD model and those of Bangalee (2012). It can be seen that the velocity in the studied windows is in a fair agreement with the CFD simulation conducted by Bangalee (2012); the obtained average discrepancy is about 5.9%, which represents a similar trend as the results of Bangalee (2012) simulated at the centreline of the windows.…”

Section: Validation Of the Microclimate Modelsupporting

confidence: 73%

“…The microclimate CFD model was firstly validated with a similar study by Bangalee (2012). A case study building was then selected as a result of a comprehensive survey over 111 existing traditional Turkish buildings.…”

Section: Resultsmentioning

confidence: 99%

“…The results of the CFD simulation were compared with Bangalee, (2012) to validate the developed model. They simulated the airflow within an isolated room as presented in Fig.…”

Section: Validation Of the Microclimate Modelmentioning

confidence: 99%

“…Re-Normalization Group (RNG) k-ε was also employed as the turbulence model to assess the wind-driven ventilation contribution of the Cumba. Several studies emphasized the advantages and high reliability of RANS RNG k-ε turbulence model in the application of natural and mechanical ventilation simulations (Evola & Popov, 2006;Bangalee, Lin, & Miau, 2012). The governing equations for continuity and momentum are as shown below:…”

Section: Governing Equationsmentioning

confidence: 99%

See 3 more Smart Citations

Wind-driven ventilation improvement with plan typology alteration: A CFD case study of traditional Turkish architecture

Aydin

Mirzaei

2016

Build. Simul.

View full text Add to dashboard Cite

show abstract

Section: Validation Of the Microclimate Modelsupporting

confidence: 73%

Section: Resultsmentioning

confidence: 99%

“…The results of the CFD simulation were compared with Bangalee, (2012) to validate the developed model. They simulated the airflow within an isolated room as presented in Fig.…”

Section: Validation Of the Microclimate Modelmentioning

confidence: 99%

Section: Governing Equationsmentioning

confidence: 99%

See 2 more Smart Citations

Wind-driven ventilation improvement with plan typology alteration: A CFD case study of traditional Turkish architecture

Aydin

Mirzaei

2016

Build. Simul.

View full text Add to dashboard Cite

show abstract

“…Some studies have only focused on natural ventilation as a passive method in order to make the process of ventilation more efficient [2]- [5]. Some authors used natural ventilation elements such as atria [6], wind towers [7], double-skin facades [8] as well as ventilation openings and windows [9] to provide required ventilation by natural driving forces, namely wind and buoyancy forces. Additionally, some studies investigated energy savings from utilizing different principles of natural ventilation, such as single-sided [3], cross ventilation [10] and stack effects [11].…”

Section: Introductionmentioning

confidence: 99%

Towards Energy-Efficient Ventilation in Buildings: Development of the Smart Window Ventilation System

Chenari¹,

Carrilho²,

Botte³

et al. 2016

JOCET

View full text Add to dashboard Cite

Abstract-As the building sector is responsible for a large portion of total primary energy consumption in developed countries, it is crucial to improve energy efficiency of buildings' systems. Heating, ventilation, and air conditioning systems play a noticeable role in energy consumption of buildings, therefore, developing efficient strategies for ventilation not only can provide comfortable indoor climate but can also mitigate energy consumption in buildings, which, consequently, will lessen the associated environmental impacts. This paper presents development steps of an intelligent window-based hybrid ventilation system in an ongoing research and development project at the University of Coimbra, known as the Smart Window project. Firstly, the motivation and objectives of the project are provided. Secondly, the current state of development of the project as well as the test condition and location in an Indoor Live Lab is presented. Finally, the future steps of development of the project accompanied by the expecting results are presented and discussed.Index Terms-Control strategies, demand-controlled ventilation, energy efficiency, hybrid ventilation, indoor environmental quality, Smart Window.

show abstract

Ventilation and Pollutant Dispersion Analysis in the Uneven Building Arrays along with the Green Roof System

Luo

Zhang

Qin

et al. 2023

Advcd Theory and Sims

View full text Add to dashboard Cite

In this study, uneven urban streets are explored with different standard deviations (σH = 0–0.6) through numerical simulations. The ventilation and pollutant diffusion conditions are investigated under the combined action between the thermal buoyancy force and mechanical wind force. When the thermal buoyancy is uniformly distributed, the upstream vortex gradually occupies the most area of the flow unit with the increase in σH. Three configurations of green roof systems (roof, leeward, and windward cooling schemes) are assumed to represent different thermal buoyancy distributions in the street canyon. The average air exchange rate and pollutant retention time (τ) are proposed to evaluate the ventilation efficiency and pollutant dispersion condition. The “free airflow” phenomenon occurs and gradually expands with the increase in the standard deviation of each model. The flow structure and pollutant distribution inside the urban canopy are similar in the uniformly heated and leeward cooling scheme. The windward cooling scheme presents the least local retention time in most working conditions. The roof cooling scheme aggravates the pollutant accumulation conditions inside the street canyon. This study can provide some constructive guidelines in the urban planning process and benefit the design of urban greening with different building morphologies.

show abstract

Wind driven natural ventilation through multiple windows of a building: A computational approach

Cited by 73 publications

References 31 publications

Wind-driven ventilation improvement with plan typology alteration: A CFD case study of traditional Turkish architecture

Wind-driven ventilation improvement with plan typology alteration: A CFD case study of traditional Turkish architecture

Towards Energy-Efficient Ventilation in Buildings: Development of the Smart Window Ventilation System

Ventilation and Pollutant Dispersion Analysis in the Uneven Building Arrays along with the Green Roof System

Contact Info

Product

Resources

About