Abstract
Most indoor air studies have not considered the influence of walking occupants. However, the occupants of many air conditioned rooms are a mixture of sedentary and walking occupants, such as in an opening plain office. In this paper, a series of tests are conducted under three air distribution methods (stratum ventilation, displacement ventilation and mixing ventilation) with a real walking occupant. The occupant walks at a speed of 1.5 m/s along two different walking routes. Velocity, temperature and CO2 concentration are measured to find the influence on air distribution. The results show that a short walk does not change the temperature or CO2 concentration profiles. When the walk lasts for a long time (30 min in this study), the walking occupant causes mixing effect. The influence under mixing ventilation is the smallest. The influence under stratum ventilation is smaller than that under displacement ventilation. The ventilation efficiency of stratum ventilation is still higher than that of mixing ventilation. Stratum ventilation and mixing ventilation recover from the influence more quickly than displacement ventilation. The results show the application potential of stratum ventilation with frequently walking occupants.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
