Study on the dynamic natural ventilation rates of occupied residence
The residential natural ventilation rates have a significant impact on indoor thermal comfort and air quality and building energy consumption. The characteristics of the indoor-outdoor temperature difference and wind pressure change over time, as well as the occupants' window opening behavior a...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2022-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/23/e3sconf_roomvent2022_03058.pdf |
| _version_ | 1828353638978813952 |
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| author | Liu Shuwei Jian Yiwen Zhu Wenbo Gu Xundong Bian Mengmeng Liu Zijia |
| author_facet | Liu Shuwei Jian Yiwen Zhu Wenbo Gu Xundong Bian Mengmeng Liu Zijia |
| author_sort | Liu Shuwei |
| collection | DOAJ |
| description | The residential natural ventilation rates have a significant impact on indoor thermal comfort and air quality and building energy consumption. The characteristics of the indoor-outdoor temperature difference and wind pressure change over time, as well as the occupants' window opening behavior and the use of HVAC systems, resulting in the residential air change rate being dynamic with time. Many previous studies of residential ventilation measured the steady-state air change rates, which does not reflect the actual dynamic characteristics. In this study, a field measurement was conducted in a bedroom of one natural ventilation residential building in Beijing with continuously monitoring the CO2 concentration, indoor air temperature, and outdoor meteorological parameters for one year. Using the CO2 released by occupants as a tracer gas, the extended Kalman filter based on the Transient Mass Balance Equation (TMBE) was adopted to calculate the dynamic air change rate. This method can effectively filter the CO2 concentration measurement noise. The trend of air change rate with each influencing factor was analyzed. This study is expected to lay the foundation for future studies of dynamic air change rates in residential buildings. |
| first_indexed | 2024-04-14T02:10:43Z |
| format | Article |
| id | doaj.art-cc082bbe14b4481cb3257ae3909478da |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-04-14T02:10:43Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-cc082bbe14b4481cb3257ae3909478da2022-12-22T02:18:25ZengEDP SciencesE3S Web of Conferences2267-12422022-01-013560305810.1051/e3sconf/202235603058e3sconf_roomvent2022_03058Study on the dynamic natural ventilation rates of occupied residenceLiu Shuwei0Jian Yiwen1Zhu Wenbo2Gu Xundong3Bian Mengmeng4Liu Zijia5Beijing University of TechnologyBeijing University of TechnologyBeijing University of TechnologyBeijing University of TechnologyState Key Laboratory of Building Safety and Built Environment, China Academy of Building ResearchState Key Laboratory of Building Safety and Built Environment, China Academy of Building ResearchThe residential natural ventilation rates have a significant impact on indoor thermal comfort and air quality and building energy consumption. The characteristics of the indoor-outdoor temperature difference and wind pressure change over time, as well as the occupants' window opening behavior and the use of HVAC systems, resulting in the residential air change rate being dynamic with time. Many previous studies of residential ventilation measured the steady-state air change rates, which does not reflect the actual dynamic characteristics. In this study, a field measurement was conducted in a bedroom of one natural ventilation residential building in Beijing with continuously monitoring the CO2 concentration, indoor air temperature, and outdoor meteorological parameters for one year. Using the CO2 released by occupants as a tracer gas, the extended Kalman filter based on the Transient Mass Balance Equation (TMBE) was adopted to calculate the dynamic air change rate. This method can effectively filter the CO2 concentration measurement noise. The trend of air change rate with each influencing factor was analyzed. This study is expected to lay the foundation for future studies of dynamic air change rates in residential buildings.https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/23/e3sconf_roomvent2022_03058.pdf |
| spellingShingle | Liu Shuwei Jian Yiwen Zhu Wenbo Gu Xundong Bian Mengmeng Liu Zijia Study on the dynamic natural ventilation rates of occupied residence E3S Web of Conferences |
| title | Study on the dynamic natural ventilation rates of occupied residence |
| title_full | Study on the dynamic natural ventilation rates of occupied residence |
| title_fullStr | Study on the dynamic natural ventilation rates of occupied residence |
| title_full_unstemmed | Study on the dynamic natural ventilation rates of occupied residence |
| title_short | Study on the dynamic natural ventilation rates of occupied residence |
| title_sort | study on the dynamic natural ventilation rates of occupied residence |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/23/e3sconf_roomvent2022_03058.pdf |
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