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

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clEAr GEoMEtrIc ArEAA v= clear width (W l) × clear height (H l)A v= W l× H lH LW LAErodynAMIc frEE ArEA for nSHEVSA a= A v× cv (in roof; cv0 in vertical facade)When nSHEVs are installed in a vertical facade a wind sensitive control system is mandatory. for this reason, theaerodynamic coefficient of discharge without side wind influence (cv0) can be measured in nSHEVs installed forfacade smoke extraction.the influence of the side wind (cv) must be taken into account in nSHEVs for roof installation.22Section A
Determining the coefficient of dischargeThe determined aerodynamic coefficients of discharge are displayed on a graph. The following is an example ofthis type of graph for bottom hung and top hung vents opening inwards:If the ratio of width to height of the NSHEV is known, the Cv0 value in the vertical facade and the Cv value inthe roof can be read off the array of curves for the desired opening angle.Section A23
Page 3: IntroductionSince September 2006, a
Page 6 and 7: Table of ContentsIntroduction .....
Page 10 and 11: 1 The EN 12101 series of standards
Page 12 and 13: 1.1.1. Facade exhaust system (verti
Page 14 and 15: 1.2.3. Dual single flap when instal
Page 16 and 17: 1.4. Determining the aerodynamic fr
Page 18 and 19: As these two options are not really
Page 20 and 21: 2.1.4. Testing the wind load WLThe
Page 25 and 26: 2.2. Initial inspection of factory
Page 27 and 28: 2.4. Marking an NSHEV in accordance
Page 29 and 30: 2.5. Declaration of ConformityIn th
Page 31 and 32: Federal StateSmoke ventilationwhen?
Page 33 and 34: BCalculation aidsThis section is di
Page 35 and 36: In this sample calculation, an open
Page 37 and 38: 2.3.2. dEtErMInInG tHE WIdtH/HEIGHt
Page 39 and 40: CInformation about D+H drives and b
Page 41 and 42: NSHEV in the vertical facadeType of
Page 43 and 44: 2 D+H bracket setsD+H Mechatronic A
Page 45 and 46: ETerms and abbreviations1 Explanati
Page 47 and 48: Aspect ratioRatio of length to widt
Page 49: Symbol/abbreviationParameter / desc

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

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