Table 3.
The wind speed by the thermal anemometer and the calibrated measurement system.
| Air Volume (m3·h-1) | Wind Speed by the Proposed Measurement System (m·s-1) | Wind Speed by the Thermal Anemometer (m·s-1) | Relative Error(%) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Fibre Tube 1(Z) | Fibre Tube 2(Y) | Fibre Tube 3(X) | Fibre Tube 1(Z) | Fibre Tube 2(Y) | Fibre Tube 3(X) | Fibre Tube 1(Z) | Fibre Tube 2(Y) | Fibre Tube 3(X) | |
| 1869 | 3.075 | -1.970 | -1.712 | 2.828 | 2.150 | 1.782 | 8.751 | 8.370 | 3.901 |
| 2386 | 3.865 | -2.827 | -2.181 | 4.097 | 2.748 | 2.285 | 5.655 | 2.886 | 4.547 |
| 3534 | 5.820 | -4.532 | -3.381 | 5.963 | 4.528 | 3.153 | 2.405 | 0.084 | 7.235 |
| 4260 | 6.852 | -5.535 | -3.743 | 6.493 | 5.502 | 4.169 | 5.527 | 0.606 | 10.211 |
| 5191 | 8.286 | -6.702 | -4.720 | 8.479 | 6.671 | 4.826 | 2.279 | 0.458 | 2.203 |
| 6134 | 9.804 | -7.789 | -5.148 | 9.775 | 7.774 | 5.495 | 0.298 | 0.193 | 6.319 |
| 7448 | 11.419 | -9.929 | -5.154 | 11.649 | 10.324 | 5.256 | 1.978 | 3.829 | 1.933 |
| 8399 | 12.938 | -10.817 | -6.416 | 12.838 | 10.616 | 6.412 | 0.776 | 1.893 | 0.062 |
| Average Relative Error (%) | 3.458 | 2.290 | 4.551 | ||||||