title: Revised air-exchange efficiency considering occupant distribution in ventilated rooms.
abstract: Air-exchange efficiency is widely used to indicate the ventilation effect and indoor air quality in ventilated rooms. However, it does not take occupant distribution in the room into account and is thus limited. In this paper, a revised air-exchange efficiency (occupant air-exchange efficiency) that differentiates between different zones by considering different occupancy in each zone is developed. Results from studies of a large-space ventilation case, a personalized ventilation case, and a displacement ventilation case show that occupant air-exchange efficiency can better be used to evaluate the ventilation effect of a room.
authors.affiliation: Department of Engineering Mechanics, Tsinghua University, Beijing, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Zhao
authors.forename: Xianting
authors.initials: X
authors.lastname: Li
authors.forename: Dongning
authors.initials: D
authors.lastname: Li
authors.forename: Jianrong
authors.initials: J
authors.lastname: Yang
mesh_terms: D000392:Air Movements; D016902:Air Pollution, Indoor / Q000517:prevention & control*; D000465:Algorithms; D014691:Ventilation