Provides airflow calculations for specifying
mechanical ventilation in residential buildings. Calculates
required airflow based on conditioned area and occupancy using Joe
Lstiburek's BSC01 2013 Ventilation Standard. The effective airflow
for installed fans is calculated using the nominal fan CFM along
with duct configuration and controls
Duct configurations
The configuration of the fan duct work specifically the orientation of the supply and return ducts to each other determines the effectiveness of ventilation system. The duct effectiveness is multiplied by the average CFM (See Fan Controls below) to determine the effective CFM delivered to the Conditioned Space.
Fan Controls
The user can set the controls for all installed fans. Controls options are: Always on or Programmable. Programmable controls can be specified in minutes of runtime per hour or hours of runtime per day. The Fan's nominal CFM rating is multiplied by the runtime fraction (hour/24 or min/60) to determine the average CFM of the fan.
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Duct configurations
The configuration of the fan duct work specifically the orientation of the supply and return ducts to each other determines the effectiveness of ventilation system. The duct effectiveness is multiplied by the average CFM (See Fan Controls below) to determine the effective CFM delivered to the Conditioned Space.
Fan Controls
The user can set the controls for all installed fans. Controls options are: Always on or Programmable. Programmable controls can be specified in minutes of runtime per hour or hours of runtime per day. The Fan's nominal CFM rating is multiplied by the runtime fraction (hour/24 or min/60) to determine the average CFM of the fan.
Tap the Copyright label to send Questions Comments and Complains to Engineered Solutions
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