Table 3. Overview of the input parameters required for the IREQ DLE calculation. Average input parameters based test set-up are also given.
| Parameter | Unit | Description | Average values for DLE calculations |
|---|---|---|---|
| Metabolic energy production | M (W·m−2) | Standard values based on tables, 58 to 400 W/m2 | 165 W·m-2 |
| Rate of mechanical work | W (W·m−2) | Normally 0 | 0 |
| Ambient air temperature | Ta (oC) | < +10 oC | Chamber temp, −20oC |
| Mean radiant temperature | Tr (oC) | Often close to ambient air temperature | Chamber temp, −20oC |
| Air permeability | p (l·m−2·s−1) | Value based on clothing low <5, medium 50, high >100 l·m−2·s−1 | 25 l·m−2·s−1 |
| Walking speed | w (m·s−1) | Walking speed or calculated work created air movements | 0.7 m·s−1 and 0 m·s−1 |
| Relative air velocity | v (m·s−1) | 0.4 to 18 m·s−1 | 3 m·s−1 |
| Relative humidity | RH (%) | Relative humidity | 20 % |
| Available basic clothing insulation | Icl (clo) | 1 clo=0.155 W·m−2K | 2.5 clo |
| Results with average values | DLE | DLEneu | 2 h |
| DLEmin | 8 h |