- Дата: 24-09-2022, 21:45
In consequence, the roofing membrane heats up quicker, thus inflicting a higher FSR. From a sensible perspective, the Exposure is relevant as the roof development beneath the PV array is part of the building envelope and thus the only barrier that prevents the fireplace from getting into the property and remodel the roof hearth into a building fireplace which might consequence in more extreme penalties. That was almost certainly not the case because of the restricted air entrainment within the experiments with low hole heights, whereupon it is deemed that the worth of the particular hearth load was not properly-represented by qf. For the experiments with inclined modules, the temperature findings have been less constant (Figure 14). First of all, the quicker flame unfold rate (see Figure 10b) and lower Exposure (see Figure 12b) triggered a shorter time frame, the place the upper surface of the roof mock-up gained heat from the fireplace. 18), the important gap top was identified to be around 11 cm, as no flame spread occurred for a gap peak of 12 cm, and constant outcomes had been obtained when the gap was 10 cm (see Figure 8a). The critical gap top interval lowered barely when the stainless-steel board was replaced with a PV module, as there was a big distinction within the flame unfold length (FSL) when the hole top was diminished from 12 cm to 11 cm (see Figure 8a). As anticipated, the experiments with the stainless-steel board with a hole peak of 11 cm have some scatter, as they are in the transition region for the vital peak.