A literature review of cross ventilation in buildings

Jiang, Zitao; Kobayashi, Tomohiro; Yamanaka, Tatsuhiko; Sandberg, Mats

doi:10.1016/j.enbuild.2023.113143

Cited by 24 publications

(5 citation statements)

References 149 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…That airflow is provided due to different air pressures and temperatures or by wind flows [34]. The basic classification describes two kinds of natural ventilation: single or cross [35]. Then, the effectiveness of the natural ventilation depends on the size, the proportions, the shape, and the position of the openings and the window-to-wall ratio (WWR) of each facade [36].…”

Section: Minimum Natural Ventilation To Ensure Indoor Air Qualitymentioning

confidence: 99%

Validation of Dynamic Natural Ventilation Protocols for Optimal Indoor Air Quality and Thermal Adaptive Comfort during the Winter Season in Subtropical-Climate School Buildings

Cordero,

Melgar,

Márquez

2024

Applied Sciences

View full text Add to dashboard Cite

The need for energy-efficient buildings must be based on strong effective passive-design techniques, which coordinate indoor air quality and thermal comfort. This research describes the principles, simulation, implementation, and monitoring of two different natural cross-ventilation algorithm scenarios applied to a school-building case study affected by a subtropical climate during the winter season. These ventilation protocols, the steady and dynamic versions, can control the carbon dioxide concentration and actuate the window openings according to pre-defined window-to-wall ratios. The implementation of the monitoring process during three non-consecutive days in the winter of 2021 validates the opening strategy to maintain carbon dioxide below 800 ppm, described by the protocol Hygiene Measures Against COVID-19, and the temperature within the comfort ranges suggested by the adaptive UNE-EN 16798. The study shows that a steady opening of 2.16% window-to-wall equivalent ratio can be enough to maintain the requested comfort and carbon dioxide conditions. The use of the dynamic window ratios, from 0.23% to 2.16%, modified according to the measured carbon dioxide concentration, can partially maintain the carbon dioxide below the required limits for ASHRAE 62.1, Hygiene Measures Against COVID-19 and UNE-EN 16798 between 48.28% to 74.14% of the time. However, the carbon dioxide limit proposed by RITE, 500 ppm, is only achieved for 15.52% of the time, which demonstrates the inadequacy of the natural ventilation to fulfil the standard. Further improvements in the dynamic control of the openings in these buildings could lead to lower carbon dioxide concentrations while maintaining the thermal comfort in mild winter climates.

show abstract

Section: Minimum Natural Ventilation To Ensure Indoor Air Qualitymentioning

confidence: 99%

Validation of Dynamic Natural Ventilation Protocols for Optimal Indoor Air Quality and Thermal Adaptive Comfort during the Winter Season in Subtropical-Climate School Buildings

Cordero,

Melgar,

Márquez

2024

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…Contemporary scientific endeavors in the domain of building aerodynamics underscore the imperative of harnessing wind as a force to facilitate natural air exchange within rooms. A substantial body of scholarly work is dedicated to identifying and modeling this phenomenon, aimed at refining the operation of ventilation systems and augmenting their efficacy (Jiang et al, 2023;Carrilho da Graça et al, 2016;Zhong et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Examining Wind Flow's Impact on Multi-Storey Buildings: A Quest for Quality Improvement

Myroniuk,

Furdas,

Zhelykh

et al. 2024

Production Engineering Archives

View full text Add to dashboard Cite

This scientific article delves into the intricacies of wind flow's impact on multi-storey buildings, presenting results from a series of experimental investigations. The research encompasses an examination of wind interactions with buildings of varying heights and geometric profiles. Furthermore, it unveils the effects of tall structures on the natural ventilation and smoke evacuation systems of shorter edifices, considering different wind flow directions. The study leverages specialized wind tunnel and measurement techniques for a comprehensive analysis of wind-induced loads on buildings. The acquired insights furnish crucial input for the design of single-story temporary modular constructions within densely populated urban areas, subject to wind-induced stresses. Additionally, they hold potential applicability in the advancement of energy-efficient technologies and strategies within the realm of construction. The acquired dataset underscores the criticality of scrutinizing wind flow's impact on structures of varied typologies and dimensions and will allow to significantly improve the quality and efficiency of modern buildings in the future.

show abstract

“…Compared to the overwhelming number of studies on external factors, the latest review on cross-ventilation by Jiang et al 22 shows only a few studies on the influence of internal factors on crossventilation. One possible reason is the limitations of research methodology, where most studies used simplified building models to represent the cross-ventilation of a single room without any internal obstacle, such as internal walls or furniture, to elucidate ventilation mechanisms and estimate ventilation rates.…”

Section: Introductionmentioning

confidence: 99%

Effects of internal wall design on cross-ventilation of an isolated building

Zhang,

Weerasuriya,

Perera

et al. 2024

Physics of Fluids

View full text Add to dashboard Cite

Poorly designed internal walls deter natural ventilation of buildings, causing poor indoor air quality and exorbitant energy costs when mechanical ventilation systems are used. Although one can design internal walls with minimum adverse effects on natural ventilation by controlling height, width, location, and porosity of internal walls, less research has been done to date. This study investigated how these four parameters individually and collectively influence the cross-ventilation of buildings using Reynolds-average Navier–Stokes equation-based computational fluid dynamics simulations and the local and global sensitivity analysis. When considering individual parameters, the local sensitivity analysis revealed the positive correlation between internal walls' porosity and cross-ventilation, similar to previous studies. However, the global sensitivity analysis identified the location as the most influential design parameter for cross-ventilation. Furthermore, the global sensitivity analysis revealed nonlinear, non-monotonic, and interactive relations between cross ventilation and all parameters but porosity, highlighting the importance of evaluating all design parameters together and the difficulty in extrapolating the findings for idealized to actual internal wall designs. Based on the findings, this study proposes narrow internal walls with high porosities built away from ventilation openings as a basic internal wall design to maximize the cross-ventilation of buildings.

show abstract

A literature review of cross ventilation in buildings

Cited by 24 publications

References 149 publications

Validation of Dynamic Natural Ventilation Protocols for Optimal Indoor Air Quality and Thermal Adaptive Comfort during the Winter Season in Subtropical-Climate School Buildings

Validation of Dynamic Natural Ventilation Protocols for Optimal Indoor Air Quality and Thermal Adaptive Comfort during the Winter Season in Subtropical-Climate School Buildings

Examining Wind Flow's Impact on Multi-Storey Buildings: A Quest for Quality Improvement

Effects of internal wall design on cross-ventilation of an isolated building

Contact Info

Product

Resources

About