Impact of human motion on TVOCs inhalation dose underside re-circulated ventilation

来源期刊：中南大学学报(英文版)2009年第4期

论文作者：张泉 曾丽萍 谢更新 张国强 牛建磊

文章页码：599 - 608

Key words：indoor air quality (IAQ); human motion; computational fluid dynamics (CFD) simulation; volatile organic compounds (VOCs); contaminant; relative inhalation dose level (RIDL) index

Abstract: The main objectives were to (1) calculate the total volatile organic compounds (TVOCs) inhalation dose, (2) analyze the proportions of human’s inhaled contaminant dose from different sources, and (3) present a newly defined ratio of relative inhalation dose level (RIDL) to assess indoor air quality (IAQ). A user defined function based on CFD (computational fluid dynamics) was developed, which integrated human motion model with TVOCs emission model in a high sidewall air supply ventilation mode. Based on simulation results of 10 cases, it is shown that the spatial concentration distribution of TVOCs is affected by human motion. TVOCs diffusion characteristic of building material is the most effective way to impact the TVOCs inhalation dose. From the RIDL index, case A-2 has the most serious IAQ problem, while case D-1 is of the best IAQ.

基金信息：the National Science and Technology Pillar Program Project during the 11th Five-Year Plan Period
the Excellent Youth Teacher of Ministry of Education of China