A detailed examination of the LBL infiltration model using the mobile infiltration test unit.

Compares LBL infiltration model predictions with air infiltration and weather data collected by MITU. Examines 4 simplifying assumptions in the model:1. The flow through cracks in the building shell can be approximated by orifice flow 2. ""Wind-induced and stack-induced infiltration can be added in quadrature 3. Wind-induced infiltration can be represented by averaging the values for 3 typical aspect ratios 4. Wind-induced infiltration can be represented by averaging the values for all wind directions.< Uses comparisons with measured data to examine these effects qualitatively, and detailed computer simulations of infiltration in MITU to quantify each effect.