Differences

This shows you the differences between two versions of the page.

--- planning:building_services:ventilation:differentiation_between_vv_and_vn50_values [2020/05/11 15:43] – [Differentiation between Vv and Vn50 values] egollwitzer
+++ planning:building_services:ventilation:differentiation_between_vv_and_vn50_values [2022/01/12 15:08] – [Calculation methodology] yaling.hsiao@passiv.de
@@ Line 43: / Line 43: @@
 Therefore, the base floor area of the stairwell is simply multiplied by the clear height of the storey. The volume for flights of stairs and intermediate landings does not have to be subtracted.
-The volume of elevator shafts (incl. elevator) inside the thermal envelope are part of the air volume and is fully taken into account. The base area of the shaft can thus be multiplied with its clear height. The volume of other shafts is not taken into account.
+The air volume of elevator shafts and of any other kind of shafts inside the thermal envelope is part of the Vn50 and is fully taken into account. The volume of the elevator cabin as well as of pipes, ducts etc. themselves counts as part of the Vn50 in a simplified way and is not deducted. The base area of the shaft can thus be multiplied with the clear height of the storey.
 ----