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--- planning:pressure_loss_calculation_tool [2022/12/12 03:58] – yaling.hsiao@passiv.de
+++ planning:pressure_loss_calculation_tool [2023/02/23 16:35] (current) – mpatyna
@@ Line 1: / Line 1: @@
-======Pressure loss calculation tool======
+======Pressure Loss Calculation Tool======
-This tool is used for the approximate pressure loss calculation of ventilation ducts (round, square) and selected fittings (e.g. bends, tees). It can also be used to take into account any fittings that do not split the air flow, as long as their pressure loss coefficient is known. The result is the pressure loss of the respective individual component (pipe section, fitting, filter). In order to calculate the total pressure loss for the entire duct network, the pressure losses output in the tool must be added up separately and, if used, further pressure losses of components such as silencers, valves or air outlets must be added.
+This tool is used for the approximate pressure loss calculation of ventilation ducts (round, rectangular) and certain fittings (e.g. bends, T-pieces). It can also be used to take into account other fittings, as long as their resistance coefficient is known. The result is the pressure loss of the respective individual component (e.g. pipe section, fitting, filter).
-**Caution:** The tool is not intended for the full representation of duct networks. It can rather be used to calculate the pressure losses of the individual network segments, which should then be summed up separately for each relevant branch in order to obtain the maximum pressure loss of the duct network. The input of the ductwork should be done sequentially (starting from the source up to the rooms) in order to be able to assign the end velocity of a fitting for the next pipe segment. For branched duct networks, the branch with the highest pressure loss is decisive.
+In order to obtain the total pressure loss for the entire ventilation duct network, the individual results (pressure losses of each segment) must then be summed up in a separate calculation. Please note that in the case of branched ventilation duct networks, the branch with the highest pressure loss is decisive.
+The input of the ductwork should be done sequentially (supply air: from ventilation unit to room supply valve; extract air: from room extract valve to ventilation unit), since the final volume flows or velocities in the fittings must be used for the subsequent duct segment respectively.
+Furthermore, pressure losses of other installed components such as silencers or valves must be researched and added additionally.
+{{:picopen:pressurelosscalculationtool.png?nolink&1200|Pressure loss calculation tool}}
-[{{ :picopen:pressure_loss_tool_cover_image.jpg?800 |Pressure loss calculation tool}}]
 ----
-Download the tool [[https://database.passivehouse.com/de/download/product_page/druckverlust-lueftung-1-0|here]].
+**Download the tool [[https://database.passivehouse.com/de/download/product_page/druckverlust-lueftung|here]].**