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

Quan Zhang, Li Ping Zeng, Geng Xin Xie, Guo Qiang Zhang, Jianlei Niu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)


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.
Original languageEnglish
Pages (from-to)599-607
Number of pages9
JournalJournal of Central South University of Technology (English Edition)
Issue number4
Publication statusPublished - 1 Aug 2009


  • Computational fluid dynamics (CFD) simulation
  • Contaminant
  • Human motion
  • Indoor air quality (IAQ)
  • Relative inhalation dose level (RIDL) index
  • Volatile organic compounds (VOCs)

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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