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# Revision history [back]

### Infiltration Rates Not Responding As Expected

I have setup OS:SpaceInfiltration:DesignFlowRate in a model as follows:

Schedule = Fractional (Value=1 for all times) Design Flow Rate Calculation Method = Flow/ExteriorWallArea Flow per Exterior Surface Area = 0.0025 Constant Term Coefficient = 1 Other 3 Coefficients = 0

My understanding (after reading the Input/Output Reference) is that this should result in a constant flow of infiltration air (for all times) at the volume flow rate specified. However, when I review results, the infiltration rates in the model appear to vary significantly. Any ideas about what is going on?

 2 No.2 Revision kramerica 1070 ●1 ●14 http://ambient-e.com/

### Infiltration Rates Not Responding As Expected

I have setup OS:SpaceInfiltration:DesignFlowRate in a model as follows:

Schedule = Fractional (Value=1 for all times) Design Flow Rate Calculation Method = Flow/ExteriorWallArea Flow per Exterior Surface Area = 0.0025 Constant Term Coefficient = 1 Other 3 Coefficients = 0

My understanding (after reading the Input/Output Reference) is that this should result in a constant flow of infiltration air (for all times) at the volume flow rate specified. However, when I review results, the infiltration rates in the model appear to vary significantly. Any ideas about what is going on?

 3 retagged __AmirRoth__ 4436 ●5 ●17 http://bleedinggreenna...

### Infiltration Rates Not Responding As Expected

I have setup OS:SpaceInfiltration:DesignFlowRate in a model as follows:

Schedule = Fractional (Value=1 for all times) Design Flow Rate Calculation Method = Flow/ExteriorWallArea Flow per Exterior Surface Area = 0.0025 Constant Term Coefficient = 1 Other 3 Coefficients = 0

My understanding (after reading the Input/Output Reference) is that this should result in a constant flow of infiltration air (for all times) at the volume flow rate specified. However, when I review results, the infiltration rates in the model appear to vary significantly. Any ideas about what is going on?