Effects of walking and tapping feet on the level of air velocities in the space and particle fluxes close to the floor: Full-scale experimental results

Shaojie Wang, Jianshun Zhang, Jing Qian, Andrea Ferro

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The objectives of this study were to characterize human-activity-induced resuspension from samples of carpet and other flooring materials used in commercial buildings, and determine the effect of different types of ventilation systems (mixing and displacement ventilation) on the concentration of resuspended particles in the personal microenvironment (PME). The experiments were conducted in a full-scale (16 ft by 12 ft by 10 ft high) Indoor Environment Quality (IEQ) chamber at Syracuse University. The air velocities were measured at two levels (H=lm and 1.5m) when the participants performed a series of activities in the IEQ chamber. For tapping feet, the resuspended particle concentrations close to the floor were measured by using Laser Doppler Anemometer (LDA) and Optical Particle Counter (OPC). The particle fluxes were calculated by analyzing the test data from an LDA and an OPC using a newly developed procedure. This paper discusses the feasibility of using the measurements from a LDA and an OPC to estimate the fluxes of particles in different size ranges. The correlation between the increase of air velocity level and the increase of close-to-floor particle flux due to human activities were also discussed. The study shows that the human activities can have significant influence on the level of air velocities and particle fluxes in the PME.

Original languageEnglish (US)
Title of host publication100th Annual Conference and Exhibition of the Air and Waste Management Association 2007, ACE 2007
PublisherAir and Waste Management Association
Pages61-75
Number of pages15
ISBN (Electronic)9781604238464
StatePublished - Jan 1 2007
Event100th Annual Conference and Exhibition of the Air and Waste Management Association 2007, ACE 2007 - Pittsburgh, United States
Duration: Jun 26 2007Jun 29 2007

Publication series

Name100th Annual Conference and Exhibition of the Air and Waste Management Association 2007, ACE 2007
Volume1

Other

Other100th Annual Conference and Exhibition of the Air and Waste Management Association 2007, ACE 2007
CountryUnited States
CityPittsburgh
Period6/26/076/29/07

ASJC Scopus subject areas

  • Pollution
  • Water Science and Technology
  • Waste Management and Disposal

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    Wang, S., Zhang, J., Qian, J., & Ferro, A. (2007). Effects of walking and tapping feet on the level of air velocities in the space and particle fluxes close to the floor: Full-scale experimental results. In 100th Annual Conference and Exhibition of the Air and Waste Management Association 2007, ACE 2007 (pp. 61-75). (100th Annual Conference and Exhibition of the Air and Waste Management Association 2007, ACE 2007; Vol. 1). Air and Waste Management Association.