![Sample our Built Environment journals, sign in here to start your access, Latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5926/TOC-Subject-Sample-2021-Built-Environment.jpg"})
Abstract
Ventilation with outdoor air is one important way to improve indoor air quality and keep occupants healthy and comfortable. Assessment of ventilation performance and effective outdoor ventilation airflow received by occupants at their workspace or respiration zone is necessary. A new scale, the first factor of outdoor air effect (FFOAE), was developed for this purpose and is based on the relationship between local components composition and the combined effect of outdoor air stream and contamination sources. The transfer efficiency of the outdoor air component,the time efficiency of indoor airflow, and the transfer efficiency of the contaminant component were reflected simultaneously in the first factor of outdoor air effect. With the aid of the FFOAE, impacts of indoor airflow pattern, supplied outdoor airflow rate, contamination sources emission intensities, and their distribution on ventilation performance, quality, and quantity of outdoor ventilation airflow received by occupants are discussed by numerical simulations.
Acknowledgments
This research has been supported by a project on residential building energy conservation system for the Yangtze Delta region (grant 2006BAJ01A05) and the State Key Laboratory of Pollution Control and Resource Reuse Foundation of China (grant PCRRF09010)
Jun Wang, PhD, is doctoral student. Xu Zhang, PhD, is Professor.