Energy use in residential buildings: Analyses of high-efficiency filters and HVAC fans

Alavy, Masih; Li, Tianyuan; Siegel, Jeffrey A.

doi:10.1016/j.enbuild.2019.109697

Cited by 20 publications

(11 citation statements)

References 17 publications

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“…There were currently three main prospects for energy consumption reduction. The first was to improve equipment performance, for example, selecting an efficient fan [ 148 ], improving the insulation performance of duct [ 149 ], selecting high filter efficiency with lower wind resistance [ 150 ], using heat recovery device [ 151 ], etc. The second was adopting suitable ventilation mode with specific requirements of air flow or air quality, to reduce the required air volume and heat.…”

Section: Achievements Challenges and Opportunities In Ventilation Modesmentioning

confidence: 99%

A review of different ventilation modes on thermal comfort, air quality and virus spread control

Fan

Wang

et al. 2022

Building and Environment

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In the era of Corona Virus Disease 2019 (COVID-19), inappropriate indoor ventilation may turn out to be the culprit of microbial contamination in enclosed spaces and deteriorate the environment. To collaboratively improve the thermal comfort, air quality and virus spread control effect, it was essential to have an overall understanding of different ventilation modes. Hence, this study reviewed the latest scientific literature on indoor ventilation modes and manuals of various countries, identified characteristics of different ventilation modes and evaluated effects in different application occasions, wherefore to further propose their main limitations and solutions in the epidemic era. For thermal comfort, various non-uniform ventilation modes could decrease the floor-to-ceiling temperature difference, draft rate or PPD by 60%, 80% or 33% respectively, or increase the PMV by 45%. Unsteady ventilation modes (including intermittent ventilation and pulsating ventilation) could lower PPD values by 12%–37.8%. While for air quality and virus spread control, non-uniform ventilation modes could lower the mean age of air or contaminants concentration by 28.3%–47% or 15%–47% respectively, increase the air change efficiency, contaminant removal effectiveness or protection efficiency by 6.6%–10.4%, 22.6% or 14%–50% respectively. Unsteady ventilation mode (pulsating ventilation) could reduce the peak pollutant concentration and exposure time to undesirable concentrations by 31% and 48% respectively. Non-uniform modes and unsteady modes presented better performance in thermal comfort, air quality and virus spread control, whereas relevant performance evaluation indexes were still imperfect and the application scenarios were also limited.

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Section: Achievements Challenges and Opportunities In Ventilation Modesmentioning

confidence: 99%

A review of different ventilation modes on thermal comfort, air quality and virus spread control

Fan

Wang

et al. 2022

Building and Environment

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“…For PACs with power draws of 10 W and 50 W at low-and high-end fan speeds and a standby power draw of 4 W (values reported in Xiang et al [35]), this figure corresponds to daily reductions of approximately 0.2 kWh and 1.0 kWh respectively; PACs with greater power draws of 167 W and 226 W (values reported in Sultan et al [108]) would realize daily reductions of approximately 3.4 kWh and 4.6 kWh respectively. While this translates to only modest cost savings for users and a limited benefit at a large scale, HVAC fans usually draw far more power than PACs [101] and can therefore achieve greater reductions in energy usage. For both types of particle filter system, a low fixed threshold is a worthwhile consideration given the large reduction in energy usage relative to the generally small decrease in AMER.…”

Section: Exposure Reductionmentioning

confidence: 99%

“…PACs can be readily deployed at low cost without seriously disrupting residents, making them a appropriate exposure reduction strategy in buildings without HVAC systems. While particle filter systems can demonstrably improve occupant health [28,31,32], it has been observed that their long-term energy usage can be substantial given that they operate frequently and/or for long durations [101]. If particle filter systems are to be recommended as a widespread public health measure the associated energy usage must be addressed.…”

Section: Introductionmentioning

confidence: 99%

Particulate matter concentrations in social housing

Mendell

Mahdavi

Siegel

2022

Sustainable Cities and Society

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“…However, a recent review by Willand et al has also cautioned that the householder's response may also undermine the outcome of residential energy efficiency interventions, among which limited technical knowledge to deal with energy efficiency measures is highlighted [32]. The relevance of the impact of technical aspects such as filtration on residential energy use has been further explored by Alavy et al [54]. While the integration of human dynamics in the control of HVAC systems has been studied by Jung and Jazizadeh [55].…”

Section: Analysis Of Direct and Indirect Links Between Indoor Temperamentioning

confidence: 99%

A Review of the Relation between Household Indoor Temperature and Health Outcomes

2020

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This paper provides a review of research that addresses the relationship between indoor temperatures and health outcomes, taking into consideration studies that focus heat or cold exposure within the household context. It aims to extend previous research by considering both indoor temperatures from existing housing, and empirical studies that focus on energy efficiency measures and subsequent health impacts. To achieve this aim, a literature review was undertaken, combining engineering and health databases. The review established that, overall, inadequate indoor temperatures are associated with poor health status, whereas energy efficiency measures have been associated to improved indoor temperatures and occupant’s health namely regarding cardiovascular, respiratory and mental health disorders. These health conditions are among the most prevalent non-communicable diseases (NCD). The review also highlighted the need for more empirical studies with an extended timeframe to deal with climate change challenges. It underlined the potential advantages of the convergence between health and energy efficiency studies, for better modelling and planning.

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Energy use in residential buildings: Analyses of high-efficiency filters and HVAC fans

Cited by 20 publications

References 17 publications

A review of different ventilation modes on thermal comfort, air quality and virus spread control

A review of different ventilation modes on thermal comfort, air quality and virus spread control

Particulate matter concentrations in social housing

A Review of the Relation between Household Indoor Temperature and Health Outcomes

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