4.5 Article

Detailed Analysis of Thermal Comfort and Indoor Air Quality Using Real-Time Multiple Environmental Monitoring Data for a Childcare Center

期刊

ENERGIES
卷 14, 期 3, 页码 -

出版社

MDPI
DOI: 10.3390/en14030643

关键词

indoor air quality (IAQ); thermal comfort; energy use; energy recovery ventilation (ERV) system; real-time environmental monitoring; childcare center

资金

  1. National Research Council of Science & Technology (NST) - Korean government (MSIP) [QLT-CRC-18-02-KICT]
  2. National Research Council of Science & Technology (NST), Republic of Korea [QLT-CRC-18-02-KICT] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

向作者/读者索取更多资源

Thermal comfort, indoor air quality, and energy use are closely related in building performance. Real-time monitoring data analysis on a childcare center showed that operating the ERV system reduced CO2 and PM10 concentrations significantly during occupied hours, but there were also comfort frequency issues during unoccupied hours. To enhance indoor environmental quality and save energy, it is important to consider IAQ, thermal comfort, and energy use together when controlling the ERV system.
Thermal comfort, indoor air quality (IAQ), and energy use are closely related, even though these have different aspects with respect to building performance. We analyzed thermal comfort and IAQ using real-time multiple environmental data, which include indoor air temperature, relative humidity, carbon dioxide (CO2), and particulate matter (e.g., PM10 and PM2.5), as well as electricity use from an energy recovery ventilation (ERV) system for a childcare center. Thermal comfort frequency and time-series analyses were conducted in detail to thoroughly observe real-time thermal comfort and IAQ conditions with and without ERV operation, and to identify energy savings opportunities during occupied and unoccupied hours. The results show that the highest CO2 and PM10 concentrations were reduced by 51.4% and 29.5%, respectively, during the occupied hours when the ERV system was operating. However, it was also identified that comfort frequencies occurred during unoccupied hours and discomfort frequencies during occupied hours. By analyzing and communicating the three different types of real-time monitoring data, it is concluded that the ERV system should be controlled by considering not only IAQ (e.g., CO2 and PM2.5) but also thermal comfort and energy use to enhance indoor environmental quality and save energy based on real-time multiple monitoring data.

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