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Particle penetration through windows

Liu, D. and Nazaroff, W.W.
2002
Proceedings: Indoor Air 2002

Liu, D. and Nazaroff, W.W., (2002), "Particle penetration through windows", Proceedings: Indoor Air 2002.
Abstract:
This study aims to characterize the fractional penetration of airborne particles through windows, one of the important sites of air leakage through building envelopes. Two aluminum windows were evaluated, one with weatherstripping and one without. For each experiment, a finished window was mounted and sealed in a plywood panel that separated two well-mixed compartments. A small pressure difference was established between the compartments to induce a constant rate of airflow through leakage paths in the window. Particles were injected into one chamber and their concentrations were measured in both chambers. Two methods were employed to evaluate the size-resolved particle penetration: a steady-state method and a dynamic, concentration growth method. The results indicate that airborne particles of 0.2 to 3 ¦Ìm penetrate through both test windows fairly effectively, while significant particle losses are observed for particles smaller and larger than this range.
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Author Information and Other Publications Notes
Liu, D.
University of California, Berkeley, California
  1. Air pollutant penetration through airflow leaks into buildings
  2. Modeling particle penetration through cracks in building envelopes
  3. Modeling pollutant penetration across building envelopes
  4. Particle penetration through building cracks  
Nazaroff, W. W.
Lawrence Berkeley National Laboratory, Berkeley, California
  1. Indoor particulate matter of outdoor origin: importance of size-dependent removal mechanisms
  2. Modeling particle penetration through cracks in building envelopes
  3. Modeling pollutant penetration across building envelopes
  4. Nonlinear least-squares minimization applied to tracer gas decay for determining airflow rates in a two-zone building
  5. Particle deposition from turbulent flow: review of published research and its applicability to ventilation ducts in commercial buildings
  6. Particle penetration through building cracks  


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