Single-sided natural ventilation in buildings: a critical literature review

Zhong, Huai-Yu; Sun, Yang; Shang, Jin; Qian, Fucai; Zhao, Fu-Yun; Kikumoto, Hideki; Jimenez-Bescos, Carlos; Liu, Xiaochen

doi:10.1016/j.buildenv.2022.108797

Cited by 69 publications

(20 citation statements)

References 98 publications

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“…In this study, the indoor air environment was evaluated using the measured values of changes in indoor CO 2 concentration. It has been reported that natural ventilation is significantly influenced by indoor and outdoor temperatures and outdoor wind speed [41]. The range of reduction in the indoor CO 2 concentration was larger when natural ventilation was provided once every 60 min than when it was provided once every 30 min.…”

Section: Discussionmentioning

confidence: 99%

Studying the Indoor Environment and Comfort of a University Laboratory: Air-Conditioning Operation and Natural Ventilation Used as a Countermeasure against COVID-19

Kuwahara

Kim

2022

Buildings

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In this study, the indoor air quality and thermal environment of a university facility were analyzed when an air conditioner was operated and natural ventilation was provided; the most effective natural ventilation method was also evaluated. The research conditions were established by adjusting the temperature of the air conditioner, and frequency of window openings every hour. The area around the windows that is open for natural ventilation was easily affected by outdoor air temperature and humidity. However, since the air conditioner was operating, there was only a brief period during which the environment was uncomfortable. Therefore, the participants in the questionnaire survey expressed neutrality or slight satisfaction for the thermal environment of the entire space. Setting the room temperature to 25 °C in summer was highly comfortable and generated a satisfactory indoor thermal environment. When the room temperature was set to 20 °C in winter, the thermal comfort level was higher than in the other conditions. Providing natural ventilation for 5 min every 30 min was determined to be effective in maintaining an indoor CO2 concentration of 1000 ppm or less. Facilitating natural ventilation for 10 min every 60 min allowed the entry of a large amount of fresh air; however, due to the extended period in which the windows and doors were closed, there were instances when the indoor CO2 concentration exceeded 1000 ppm. Therefore, providing frequent natural ventilation with short time intervals is effective for improving indoor air quality.

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Section: Discussionmentioning

confidence: 99%

Studying the Indoor Environment and Comfort of a University Laboratory: Air-Conditioning Operation and Natural Ventilation Used as a Countermeasure against COVID-19

Kuwahara

Kim

2022

Buildings

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“…The local mean age of air ( AoA ) is the average time needed for the air to reach the measured point from the air inlet [ 22 ]. The AoA is a straightforward indicator showing the freshness of the air.…”

Section: Methodsmentioning

confidence: 99%

“…Although ventilation indices are widely used to indicate the airborne infection risk control performance of air distribution in practice because of their convenience, their applicability in evaluating the airborne infection risk control performance of air distribution is not yet clear. The monotonic relationship between the ventilation indices and airborne infection risk, particularly a linear relationship, makes the ventilation indices effectively indicate the airborne infection risk control performance of air distribution [ [19] , [20] , [21] , [22] , [23] ]. Novoselac and Srebric [ 17 ] found that ACE was less suitable for evaluating the air distribution with the known contaminant sources.…”

Section: Introductionmentioning

confidence: 99%

“…This study further validates the ventilation indices for airborne infection risk control performance evaluation of air distribution. Compared with the existing studies [ [19] , [20] , [21] , [22] , [23] ], the contributions of this study are as follows. First, as the ventilation indices are widely used to evaluate the airborne infection control performance of the air distribution, this study investigates the validity of using ventilation indices to indicate the airborne infection risk through the qualitative and quantitative analyses.…”

Section: Introductionmentioning

confidence: 99%

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Ventilation indices for evaluation of airborne infection risk control performance of air distribution

Niu

Zhang

et al. 2022

Building and Environment

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“…The method can still satisfy the thermal comfort while taking advantages of opportunities to reduce energy needs under appropriate weather conditions. In addition, building design provides sufficient natural ventilation opportunity not only linked with the percentage of openable doors/windows but also other issues related to it, e.g., with single-sided natural ventilation [10,11]. The Center for the Built Environment [12] has classified mixed-mode ventilation into three categories, including "change-over", "concurrent", and "zoned".…”

Section: Introductionmentioning

confidence: 99%

Mixed-Mode Ventilation in HVAC System for Energy and Economic Benefits in Residential Buildings

Cetin

2022

Energies

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In the U.S., approximately 47% of the total electricity use comes from residential buildings. Most of the residential buildings use HVAC system to ventilate, cool, or heat the indoor environmental spaces mechanically, rather than using natural outdoor air in transition seasons, even though the outdoor environmental conditions are favorable for indoor thermal comfort. In this case, an HVAC system using mixed-mode ventilation with an appropriate ratio of using indoor air and outdoor air could decrease the energy use in residential buildings. This research uses high-granular HVAC electricity use data with indoor thermostat data and outdoor weather data from residential buildings in Austin, Texas, to evaluate the benefits of energy and economics when using HVAC mixed-mode ventilation in spring and fall transition seasons. The results demonstrate that the household owners could save approximately 150.79 kWh of total HVAC energy use and 24.41% of HVAC cost in spring transition months (April/May), and similarly, 143.86 kWh of energy use and 27.2% cost savings in fall transition months (October/November). The results could support further study to use automatically operated windows for natural ventilation to reduce energy use in residential buildings toward sustainable development.

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Single-sided natural ventilation in buildings: a critical literature review

Cited by 69 publications

References 98 publications

Studying the Indoor Environment and Comfort of a University Laboratory: Air-Conditioning Operation and Natural Ventilation Used as a Countermeasure against COVID-19

Studying the Indoor Environment and Comfort of a University Laboratory: Air-Conditioning Operation and Natural Ventilation Used as a Countermeasure against COVID-19

Ventilation indices for evaluation of airborne infection risk control performance of air distribution

Mixed-Mode Ventilation in HVAC System for Energy and Economic Benefits in Residential Buildings

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