Key factor analysis of VOC sorption and its impact on indoor concentrations: The role of ventilation

Qinqin Deng, Xudong Yang, J. S. Zhang

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

Previous volatile organic compound (VOC) sorption studies by building materials have been mainly conducted under a set of standard environmental conditions (e.g., 23 °C, 50% relative humidity and 1 air changes per hour (ACH)). However, the conditions around a material in actual buildings are usually different from such standard conditions, especially the ventilation rate. The objective of this study is to analyze quantitatively the effect of ventilation rate on VOC sorption under various conditions. By conducting several representative simulation case studies using a model that was previously validated, it is concluded that ventilation is a key factor for determining whether sorption effect in building materials should be considered. When the ventilation rate is small (e.g., 0.1 ACH), the sorption effect of materials with strong sorption capacity such as carpet and cushion should be considered. On the other hand, sorption for most materials may be neglected when ventilation rate reaches a high level (e.g., 20 ACH). The results could be useful in indoor air quality simulation and design.

Original languageEnglish (US)
Pages (from-to)182-187
Number of pages6
JournalBuilding and Environment
Volume47
Issue number1
DOIs
StatePublished - Jan 1 2012

Keywords

  • Indoor air quality
  • Key factor
  • Simulation
  • VOC sorption
  • Ventilation

ASJC Scopus subject areas

  • Environmental Engineering
  • Civil and Structural Engineering
  • Geography, Planning and Development
  • Building and Construction

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