Table 10.
Differences between reference PIMINUTE values in Table 2 and PI obtained with the dataset associated to extractions every hour. Performance Index (PI) is calculated as the percentage of time for which the combination of T and RH data fits into the specifications of each ASHRAE climate class. The differences ΔPIHOUR are calculated as (PIHOUR – PIMINUTE).
| Class | ΔPIHOUR (%) | |||
|---|---|---|---|---|
| Probe 1 | Probe 2 | Probe 3 | Probe 4 | |
| AA | 0.5 | −3.1 | 0.9 | −2.8 |
| As | 0.5 | 1.5 | 0.9 | 1.8 |
| A | 0.5 | −4.9 | 0.9 | −3.6 |
| B | 0.1 | 0.0 | 0.1 | 0.3 |
| C | 0.1 | −0.8 | 0.1 | −2.1 |
| D | 0.0 | 0.0 | 0.0 | 0.0 |