International Journal of Interdisciplinary Research
Table 6 Individual errors between experimental and predicted values of air permeability & moisture vapour transmission rate
Sample code | Experimental air permeability (cm3/cm2/s) | Predicted air permeability (cm3/cm2/s) | Error % \(\left( {\frac{{\left| {E - P} \right|}}{E}} \right)\) *100 | Experimental moisture vapour transmission rate (g/m2/24 h) | Predicted moisture vapour transmission rate (g/m2/24 h) | Error % \(\left( {\frac{{\left| {E - P} \right|}}{E}} \right)\) *100 |
|---|---|---|---|---|---|---|
PETC3 | 156.13 | 152.48 | 2.34 | 5.99 | 6.26 | 4.55 |
PETC6 | 113.13 | 126.38 | 11.71 | 5.10 | 4.81 | 5.77 |
PETC10 | 168.20 | 154.89 | 7.91 | 6.13 | 6.69 | 9.12 |
PETC15 | 155.00 | 148.97 | 3.89 | 5.99 | 6.44 | 7.45 |
PETC27 | 96.50 | 90.46 | 6.26 | 5.15 | 5.56 | 8.00 |
PETC30 | 133.00 | 130.94 | 1.55 | 5.98 | 6.27 | 4.78 |
PETC32 | 95.00 | 81.44 | 14.28 | 3.66 | 4.64 | 26.92 |
PETC35 | 131.00 | 128.52 | 1.89 | 5.82 | 5.86 | 0.60 |
PETC41 | 59.80 | 55.70 | 6.85 | 3.05 | 3.07 | 0.78 |
PETC45 | 127.30 | 105.66 | 17.00 | 5.01 | 5.24 | 4.53 |
Mean absolute percentage error | 7.37 | 7.25 |