Improving indoor air quality and thermal comfort in residential kitchens with a new ventilation system

Liu, Sumei; Cao, Qing; Zhao, Xingwang; Lu, Zechao; Deng, Zhipeng; Dong, Jiankai; Lin, Xiang; Qing, Ke; Zhang, Weizhen; Chen, Qingyan

doi:10.1016/j.buildenv.2020.107016

Cited by 62 publications

(26 citation statements)

References 47 publications

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“…Therefore, to prevent occupants' health problems, it is crucial to increase indoor air renovation [29], promoting the mitigation of radon levels and the elimination visible fungi or mold growth, and keeping the interior room well ventilated, clean, and sanitized. Ventilation stands out as a fundamental factor in radon management, improving overall IAQ, and it can be provided by either natural or mechanical means, but both need a specialized design to avoid malfunctioning [30][31][32][33][34][35].…”

Section: Energy Efficiency Management Vs Indoor Radon Exposurementioning

confidence: 99%

Internet of Things (IoT) Technologies for Managing Indoor Radon Risk Exposure: Applications, Opportunities, and Future Challenges

2021

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Radon gas is a harmful pollutant with a well-documented adverse influence on public health. In poorly ventilated environments, that are often prone to significant radon levels, studies indicate a known relationship between human radon exposure and lung cancer. Recent technology advances, notably on the Internet of Things (IoT) ecosystem, allow the integration of sensors, computing, and communication capabilities into low-cost and small-scale devices that can be used for implementing specific cyber-physical systems (CPS) for online and real-time radon management. These technologies are crucial for improving the overall building indoor air quality (IAQ), contributing toward the so-called cognitive buildings, where human-based control is tending to decline, and building management systems (BMS) are focused on balancing critical factors, such as energy efficiency, human radon exposure management, and user experience, to achieve a more transparent and harmonious integration between technology and the built environment. This work surveys recent IoT technologies for indoor radon exposure management (monitoring, assessment and mitigation), and discusses its main challenges and opportunities, by focusing on methods, techniques, and technologies to answer the following questions: (i) What technologies have been recently in use for radon exposure management; (ii) how they operate; (iii) what type of radon detection mechanisms do they use; and (iv) what type of system architectures, components, and communication technologies have been used to assist the referred technologies. This contribution is relevant to pave the way for designing more intelligent and sustainable systems that rely on IoT and Information and Communications Technology (ICT), to achieve an optimal balance between these two critical factors: human radon exposure management and building energy efficiency.

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Section: Energy Efficiency Management Vs Indoor Radon Exposurementioning

confidence: 99%

Internet of Things (IoT) Technologies for Managing Indoor Radon Risk Exposure: Applications, Opportunities, and Future Challenges

2021

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“…Natural ventilation requires a certain degree of selfdiscipline and system from building occupants. If a building is not sufficiently ventilated, the humidity in the apartment increases, and mold is formed ( Figure 5) [28][29][30][31][32]. The issue of prefabricated buildings is still relevant after 2010.…”

Section: Effects Of the Revitalization Of The Building Envelope On Inmentioning

confidence: 99%

The Indoor Microclimate of Prefabricated Buildings for Housing: Interaction of Environmental and Construction Measures

et al. 2020

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The current knowledge shows that the interior microclimate of residential buildings that were constructed between 1950 and 1990 using panel construction, not only in the Czech Republic but also in Europe, and were renovated in accordance with applicable legislation related to thermal comfort and energy is significantly affected by gaseous pollutants. At increased concentrations and exposure times, these pollutants negatively affect the interior microclimate and at the same time have a negative effect on the health of users. After the implementation of remediation measures, which are mainly focused on improving the thermal technical parameters of the building envelope, the concentration of CO2 in the indoor environment increases. Carbon dioxide is one of the most important active factors and in terms of the quality of the interior microclimate, it is considered a reliable indicator of whether the interior microclimate can be considered a healthy and favorable environment. It is thus clear that the set and de facto systematized measures in the renovation of the housing stock from the second half of the 20th century has led to energy savings on the one hand, but on the other hand, this has contributed to the hygienic damage of housing units and an unhealthy interior microclimate. The paper aims to define the interaction of interdisciplinary contexts that have led to an increase in the indoor air quality (IAQ) of renovated residential panel buildings.

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“…At present, air curtains' dust-proof and heatproof functions have been widely used in industrial buildings and clean hospital rooms [9,10]. Liu et al [11] proposed an air-conditioning system with an air curtain. Li et al [12] and Yin et al [13] pointed out in the study of wall attachment ventilation that the airflow attached to the building wall forms a flow characteristic similar to an air curtain.…”

Section: Introductionmentioning

confidence: 99%

Simulation Research on Ventilation Control of Gaseous Pollutants in Urban Sentry Boxes

Yin

Deng

et al. 2022

E3S Web Conf.

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The tiny spaces of sentry boxes in cities, such as mobile security guards, highway toll booths, etc., are mostly located beside roads with harsh outdoor environments. Due to office demands, work windows often need to be kept or frequently opened. The intrusion of outdoor pollutants through the windows leads to the deterioration of the indoor air quality, and threatens the health of employees. This paper takes the gaseous pollutant NO2 as the representative and discusses the effective ventilation design scheme for improving the air quality in the sentry box with openings using two attached ventilation modes as the carrier. Taking the vertical wall-attached ventilation as an example, the formation of the air curtain at the window hole and its barrier performance to outdoor pollutants were studied. The conclusion is that when the air supply velocity is sufficient to form a complete air curtain at the window hole, it can effectively block the pollutants. The horizontal wall-attached ventilation shows that clean air is delivered to the space with openings, and the indoor air quality can also be well improved due to the dilution effect, but the effect of positive pressure control is not obvious due to the large opening. The conclusions can provide guidance for the ventilation design of sentry boxes with openings.

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Improving indoor air quality and thermal comfort in residential kitchens with a new ventilation system

Cited by 62 publications

References 47 publications

Internet of Things (IoT) Technologies for Managing Indoor Radon Risk Exposure: Applications, Opportunities, and Future Challenges

Internet of Things (IoT) Technologies for Managing Indoor Radon Risk Exposure: Applications, Opportunities, and Future Challenges

The Indoor Microclimate of Prefabricated Buildings for Housing: Interaction of Environmental and Construction Measures

Simulation Research on Ventilation Control of Gaseous Pollutants in Urban Sentry Boxes

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