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--- planning:building_services:ventilation:differentiation_between_vv_and_vn50_values [2019/02/07 11:42] – cblagojevic
+++ planning:building_services:ventilation:differentiation_between_vv_and_vn50_values [2019/02/13 10:35] – cblagojevic
@@ Line 7: / Line 7: @@
 | Reference volume of the ventilation system   | Value of air volume that will be heated or cooled for calculating the n<sub>50</sub> leakage value. |
 | is used to calculate the air exchange rate | is used for the calculation of n<sub>50</sub> |
-| Rough calculation: \\ Calculated by multiplying the TFA times an average room height for the entire building. \\ In the case of residential buildings, a standart height of 2.50 m should be considered, regardless of the actual height. | Exact caltulation: \\ All rooms of the building (including the stairs) are calculated separately by multiplying the net area times the clear room height. |
+| Rough calculation: \\ Calculated by multiplying the TFA times an average room height for the entire building. \\ In the case of residential buildings, a standard height of 2.50 m should be considered, regardless of the actual height. | Exact caltulation: \\ All rooms of the building (including the stairs) are calculated separately by multiplying the net area times the clear room height. |
 The next sections provide a detailed description of both values and their calculation.
@@ Line 25: / Line 25: @@
 ===== Vn50 – Net air volume for pressurisation test =====
-The air volume V<sub>n50</sub> within the heated building envelope is the volume that will be used for calculating [[planning:airtight_construction:general_principles:blower_door_test|the n50 air lekage value]]. It is supposed to indicate the //actual// volume of air that will be heated or cooled within the building and should be calculated separately for each room. The calculation should be carried out in accordance with the EN 13829 standard and must be clearly documented. The total air volume within the thermal envelope should be taken into account.
+The air volume V<sub>n50</sub> within the heated building envelope is the volume that will be used for calculating [[planning:airtight_construction:general_principles:blower_door_test|the n50 air leakage value]]. It is supposed to indicate the //actual// volume of air that will be heated or cooled within the building and should be calculated separately for each room. The calculation should be carried out in accordance with the EN 13829 standard and must be clearly documented. The total air volume within the thermal envelope should be taken into account.
 ==== Calculation methodology ====
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 ==== Single family house - Calculation of TFA, VV and Vn50  ====
-|  {{:picopen:grundriss_1_engl.jpg?direct&800|}}    ||
+| {{:picopen:grundriss_englisch.jpg?direct&800|}}  ||
-| The areas considered for the TFA are highlighted with different colours. | The net areas to be considered for the calculation of the V<sub>n50</sub> are highlighted with green. |
+| The area counted in TFA is highlighted blue and yellow. | The area to be considered for the V<sub>n50</sub> calculation is highlighted green. |
-| {{:picopen:grundriss_2_engl.jpg?direct&600|}} |
+| {{:picopen:grundriss_englisch_2.jpg?direct&600|}} |
-|    Sections of example calculation project: the net areas to be considered for the calculation of the V<sub>n50</sub> are highlighted with green.    |
+|    Sections of example calculation project: The area to be considered for the V<sub>n50</sub> calculation  is highlighted green.    |
 [{{:picopen:excell_englisch.jpg?direct&800|}}]