Modeling VOCs emissions in a room with a single-zone multi-component multi-layer technique

L. Z. Zhang, Jianlei Niu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

69 Citations (Scopus)

Abstract

Building envelopes are usually comprised of several layers with different materials, which can significantly affect volatile organic compounds (VOCs) concentrations in indoor environments. These layers may act as source and sink alternatively depending on the different sorption and diffusion potentials. The model proposed here is a single zone one and it considers the different emission properties of building components, namely, the different sorption and diffusion characteristics of the side walls, the floor and the ceiling. In addition, each component comprises of several layers, which represents different construction materials. Two VOCs, ethyl acetate and n-octane, representing polar and nonpolar compounds respectively, are modeled to study the emission profiles in a room with several building materials. The effects of various construction materials, and the different convective mass transfer coefficients between room air and different building components, on the emission characteristics are investigated.
Original languageEnglish
Pages (from-to)523-531
Number of pages9
JournalBuilding and Environment
Volume39
Issue number5
DOIs
Publication statusPublished - 1 Jan 2004

Keywords

  • Emissions
  • Indoor air quality
  • Mass transfer
  • VOCs

ASJC Scopus subject areas

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

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