EEC - Statistical Modeling
Natural air infiltration is the uncontrolled flow of air through
penetration in the building envelope caused by the
action of wind and temperature difference. Air infiltration has a profound
influence on both the internal environment and on the energy needs of the
building. **
Air Leakage Baseboards
EEC Inc.uses the theoretical airflow model " ALCAP
Procedure" based on the network method. These components are included:
- inside/outside temperature difference to detemine the stack
pressure distribution;
- design wind speed and direction to determine the wind
pressure distribution;
- characteristics of the mechanical ventilation system;
- building dimensions, exposure, shielding, orientation type,
and construction details;
- flow path distribution and air leakage characteristics
Air Leakage Access
Leakage rate depends on stack, wind and mechanical ventilation
and the characteristics of the building openings. Using a network of simplified
airflow paths:
- climate and exposusre
- building type
- building form
- building dimensions
- surface to volume ratios
- shafts
- envelope types
- windows and doors
By applying the mass balance equation, the air filtration that would occur
during peak winter conditions can be determined by applying the mass balance equation, becuase the sume
sum of airflow through
all paths must always be zero.
** Research Report from Canadian Housing
Information Center
