Indoor air quality (IAQ) has become vital as it significantly influences human health and well-being. Given that people spend most of their lifetime indoors, assessing and maintaining an optimal IAQ is essential for ensuring the well-being of occupants. Numerous interrelated triggers influence Indoor Air Quality (IAQ): outdoor air quality, occupant behavior, building materials, heating, ventilation, and air conditioning (HVAC) systems, contaminant sources, temperature, and humidity. To better assess IAQ, the development of efficient methodologies and tools is necessary. This study evaluates indoor air quality (IAQ) in office environments through advanced mechanical ventilation strategies at the HYBCELL facility, ENTPE, France. The facility was instrumented with sensors to track various elements affecting indoor and outdoor air quality, such as temperature, humidity, air velocity, particulate matter (PM2.5, PM5, and PM10), CO2, and volatile organic compounds (VOCs). Moreover, the facility is equipped with mechanical ventilation systems to assess the impact of different ventilation strategies on pollutant levels. The results demonstrate the importance of adaptive ventilation strategies for maintaining optimal indoor environments. The findings underscore that a Demand-based Ventilation Control strategy can effectively regulate CO2 concentrations within desired limits, thus promoting a healthier workspace. On the other hand, fixed fan speeds provided valuable insights into the direct relationship between ventilation rates, pollutant concentrations, and energy consumption.

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In-Situ Assessment of Indoor Air Quality Through Monitoring Key Environmental Indicators

  • Myriam Bahrar,
  • Joud Aldakheel,
  • Mohamed El Mankibi

摘要

Indoor air quality (IAQ) has become vital as it significantly influences human health and well-being. Given that people spend most of their lifetime indoors, assessing and maintaining an optimal IAQ is essential for ensuring the well-being of occupants. Numerous interrelated triggers influence Indoor Air Quality (IAQ): outdoor air quality, occupant behavior, building materials, heating, ventilation, and air conditioning (HVAC) systems, contaminant sources, temperature, and humidity. To better assess IAQ, the development of efficient methodologies and tools is necessary. This study evaluates indoor air quality (IAQ) in office environments through advanced mechanical ventilation strategies at the HYBCELL facility, ENTPE, France. The facility was instrumented with sensors to track various elements affecting indoor and outdoor air quality, such as temperature, humidity, air velocity, particulate matter (PM2.5, PM5, and PM10), CO2, and volatile organic compounds (VOCs). Moreover, the facility is equipped with mechanical ventilation systems to assess the impact of different ventilation strategies on pollutant levels. The results demonstrate the importance of adaptive ventilation strategies for maintaining optimal indoor environments. The findings underscore that a Demand-based Ventilation Control strategy can effectively regulate CO2 concentrations within desired limits, thus promoting a healthier workspace. On the other hand, fixed fan speeds provided valuable insights into the direct relationship between ventilation rates, pollutant concentrations, and energy consumption.