Potential of cross-ventilation channels in an ideal typical apartment building predicted by CFD and multi-zone airflow model

Zhang, Zhiyi; Yin, Wei; Wang, Tian-Wen; Yonghan, Li; Yawen, Zhong; Zhang, Guoqiang

doi:10.1016/j.jobe.2021.103408

Cited by 8 publications

(1 citation statement)

References 45 publications

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“…Different opening size for inlet and outlet side provides complete airflow inside the room as compared to same inlet and outlet opening size. Zhiyi et al [13] studied the natural ventilation of a typical apartment house for Chinese climatic condition. They introduced channel connections for the ventilation.…”

Section: Introductionmentioning

confidence: 99%

Impact of Internal Wall Barriers on Airflow Pattern in Natural Cross-Ventilation of the Common Houses in Bhubaneswar City, India

2023

jjmie

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Common walls between houses are a major reason for improper ventilation in apartment buildings. They make a compulsion for improper positioning of doors/windows. The shape of the house also affects the airflow distribution patterns inside the house. In this work, the effect of various shapes of the house on the ventilation inside the rooms is investigated with a cross-flow ventilation configuration, where the total floor area of the house is maintained as 1000 square feet. Moreover, work also has been performed to investigate the airflow inside a square-shaped house with different door/window configurations for various inlet airflow directions. Besides that, the impact of inlet airflow velocity on the ventilation process has also been investigated. From the investigation, it has been observed that with an increase in air volume flow rate, the area covered with low-velocity air (< 1 m/s) decreases and the area covered with high-velocity air ( > 2 m/s) increases irrespective of the shape of the house but does not follow any pattern for the comfort condition airflow velocity. The airflow pattern is not changed significantly with increase in inlet airflow velocity, but the airflow velocity regions are changed significantly. For a square shape house, 78% area is covered with a low air velocity region (< 1 m/s) is the highest with N & E door/window configuration. 62% area covered with high air velocity region (> 2 m/s) is the highest with N & S door/window configuration. 26% area covered with comfort flow condition (between 1-2 m/s) is the highest with N & S door/window configuration.

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Section: Introductionmentioning

confidence: 99%

Impact of Internal Wall Barriers on Airflow Pattern in Natural Cross-Ventilation of the Common Houses in Bhubaneswar City, India

2023

jjmie

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Field measurement and numerical investigation of natural cross-ventilation in high-rise buildings; Thermal comfort analysis

Nasrollahi

Ghobadi

2022

Applied Thermal Engineering

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Simulation of the effect of horizontal airflow channel on natural ventilation in apartments

Yu,

Cheng

2024

E3S Web Conf.

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Natural ventilation has an important impact on people's work and life. Reasonable use of natural ventilation can effectively improve indoor air quality and thermal comfort, reduce the use of air conditioning and reduce energy consumption. With the continuous development of urbanization, many apartments cannot effectively use natural ventilation. This paper uses CFD simulation to analyze the improvement effect of indoor ventilation after the installation of airflow channel in residential public transportation. The results show that the horizontal airflow channel can improve the indoor air environment and effectively reduce the dissatisfaction rate of indoor thermal comfort and indoor air age.

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Potential of cross-ventilation channels in an ideal typical apartment building predicted by CFD and multi-zone airflow model

Cited by 8 publications

References 45 publications

Impact of Internal Wall Barriers on Airflow Pattern in Natural Cross-Ventilation of the Common Houses in Bhubaneswar City, India

Impact of Internal Wall Barriers on Airflow Pattern in Natural Cross-Ventilation of the Common Houses in Bhubaneswar City, India

Field measurement and numerical investigation of natural cross-ventilation in high-rise buildings; Thermal comfort analysis

Simulation of the effect of horizontal airflow channel on natural ventilation in apartments

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