Assumed values for each of the ASHRAE Basic, ASHRAE Enhanced, K–P UK, K–P US, LBL, and Modified K–P infiltration estimation methods
| Input | ASHRAE Basic | ASHRAE Enhanced | K–P UK | K–P US | LBL | Modified K–P |
|---|---|---|---|---|---|---|
| Flow coefficient (C) | – | 369.33 | – | – | – | – |
| Flow exponent (n) | – | 0.56 | – | – | – | – |
| ELA (cm2) | 865.80 | – | – | – | 865.80 | – |
| q50 | – | – | 14.67 | – | – | – |
| n50 | – | – | – | 15.31 | – | 15.31 |
| Storeys | 2 | 2 | – | – | 2 | – |
| Shelter class/shielding parameter | 5 | 5 | – | – | 5 | – |
| Flue | – | No flue | – | – | – | – |
| Terrain coefficient | – | – | – | – | City | – |
| Chimneys, fans, flues, PSVs | – | – | – | – | – | – |
| Sheltered sides | – | – | – | – | – | – |
| Structural infiltration | – | – | – | – | – | – |
| Floor infiltration | – | Basement slab | – | – | – | – |
| Draught lobby infiltration | – | – | – | – | – | – |
| Windows draught-proofed | – | – | – | – | – | – |
| Ventilation method | – | – | – | – | – | – |
| Leakiness/crack factor | – | – | – | – | – | – |
| Building volume | 209.2 m3 | 209.2 m3 | – | – | 209.2 m3 | – |
| ΔT | M | M | – | – | M | – |
| Wind speed | M | M | – | – | M | – |
| Input | ASHRAE Basic | ASHRAE Enhanced | K–P UK | K–P US | LBL | Modified K–P |
|---|---|---|---|---|---|---|
| Flow coefficient ( | – | 369.33 | – | – | – | – |
| Flow exponent ( | – | 0.56 | – | – | – | – |
| ELA (cm2) | 865.80 | – | – | – | 865.80 | – |
| – | – | 14.67 | – | – | – | |
| – | – | – | 15.31 | – | 15.31 | |
| Storeys | 2 | 2 | – | – | 2 | – |
| Shelter class/shielding parameter | 5 | 5 | – | – | 5 | – |
| Flue | – | No flue | – | – | – | – |
| Terrain coefficient | – | – | – | – | City | – |
| Chimneys, fans, flues, PSVs | – | – | – | – | – | – |
| Sheltered sides | – | – | – | – | – | – |
| Structural infiltration | – | – | – | – | – | – |
| Floor infiltration | – | Basement slab | – | – | – | – |
| Draught lobby infiltration | – | – | – | – | – | – |
| Windows draught-proofed | – | – | – | – | – | – |
| Ventilation method | – | – | – | – | – | – |
| Leakiness/crack factor | – | – | – | – | – | – |
| Building volume | 209.2 m3 | 209.2 m3 | – | – | 209.2 m3 | – |
| Δ | – | – | – | |||
| Wind speed | – | – | – |
Note(s): The letter “M” denotes that the mean measured value for ΔT or wind speed was used (unique for all 15 tests)
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