Smoke ventilation according to EN 12101-2 - D+H Mechatronic

2.3.2. dEtErMInInG tHE WIdtH/HEIGHt rAtIo of A cASEMEntthe width-height ratio is calculated from the ratio of clear width and clear height:W/H = clear width (rlB): clear height (rlH)W/H = (1200 - 60) : (1600 – 60)W/H = 1 140 : 1 540W/H = 0.74 → W/H < 1.002.3.3. dEtErMInInG tHE oPEnInG AnGlEthe opening angle is read off the following graph as a function of the stroke and the height. the values displayedon this graph are based on a simple sine trigonometric function. the graph is universally applicable across allsystems:Ratio of the opening angle to the height dependent on the strokeSash height Fh [mm]Stroke 800Opening angle [DEG]Stroke 300Stroke 1100Stroke 400Stroke 1200Stroke 500Stroke 1300Stroke 600 Stroke 700 Stroke 800 Stroke 900Stroke 1400Stroke 1000In this sample calculation, an opening angle of 37° is calculated at a vent height of 1,600 mm and a stroke ofTeil A1,000 mm.2.3.4. dEtErMInInG tHE coEffIcIEnt of dIScHArGE cV0using the width-height ratio determined under 2.3.2., the coefficient of discharge cv0 required for the nextcalculation can now be read off the corresponding table for the system:Openingasinwardsbottom/tophungFrame cleardimensions overlapWWWWOpening angle°At a width-height ratio of 0.74 and an opening angle of 35°, the coefficient of discharge cv0 is 0.40. As theopening angle of 37° calculated in 2.3.3. and the associated cv0 value are not yet reached, the next lowestSection B37