Details on the Section “Indoor Swimming Pools”
Information on the section Swimming Pool Hall of the Ventilation module in LINEAR Building.
In this area, you define the room-specific settings for determining the required air volumes for rooms in non-residential buildings based on the calculation method VDI 2089-1 Swimming Pools. Depending on the selected room type, different input areas are available for swimming pool halls and for the other room types. Values conforming to the guidelines are stored as default values.
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General room data
The room number, the room name and the room temperature for the heating or cooling mode are displayed on the left-hand side, which you can adjust as required. Depending on the module, you can use the 
button to the right of the room temperature to open the Temperatures dialog, in which you can select the temperature variables stored in the master tables and create new temperature variables.
The area resulting from the clear internal dimensions and the clear internal dimensions of the room are displayed in brackets in the right-hand area.
: Opens the Room Data dialog in which you can adjust the parameters of the room.
General Data
Room Type according to VDI 2089-1: Drop-down list for selecting the room type according to VDI 2089-1. The required air volumes are determined in different ways for the different room types. By selecting the room type, the corresponding input areas are activated and any input fields that are not required are deactivated.
Swimming Pool Hall
In this area, you specify the water vapor partial pressure and the water vapor content of the room air as well as the density of the outside air for the room type Swimming Pool Hall.
Room Air Water Vapor Partial Pressure: Specifies the partial pressure of the water vapor present in the room air of the swimming pool hall.
Indoor Air Water Vapor Content: Specifies the proportion of water vapor in the indoor air of the swimming pool hall. The default value is the lower limit value of the absolute water content in the swimming pool hall air from the directive, which you can adapt to the requirements of your project if necessary.
: One click restores the default value in accordance with the guidelines.
Density of the Outside Air: Specifies the density of the outside air. The density of the outside air is used to determine the required design outside air volume flow from the design outside air mass flow. The default value is the density at sea level at 20 °C, which you can adapt to the requirements of your project if necessary.
: One click restores the default value in accordance with the guidelines.
Swimming Pools
In this area, the parameters for determining the evaporated water mass flows of all swimming pools in the swimming pool hall are defined. The evaporated water mass flows of water attractions located in the pools can also be taken into account. If projects include attractions with aerated water flows, their water vapor outputs can also be determined.
By clicking 
you have the possibility to copy the contents of the table with or without column heading and paste it into Excel.
If you have selected individual rows or cells, you can copy the selected data with the key combinations Ctrl+C (with column heading) or Ctrl+Shift+C (without column heading) and paste it into Excel, for example.
| Column | Description |
|---|---|
| Name | Defines the name of the pool. |
| Type | Defines the pool type. Common water temperatures are stored for the different pool types, which you can adjust as required. Clicking on  opens the list for selecting the type. |
| A | Allows the attractions of a pool to be taken into account. Clicking on  opens the Attractions dialog in which you can select different attractions for the pool. |
| t_W | Defines the water temperature of the pool. Common water temperatures are stored for the different pool types, which you can adjust as required. |
| Width | Defines the pool width that is used to calculate the usable area A_usable. |
| Length | Defines the pool length that is used to calculate the usable area A_usable. |
| A_usable | Defines the usable area of the pool and thus the reference area for the evaporated water mass flow. If you enter the Length and Width of the pool, the usable area is calculated automatically. Values entered manually are shown in bold. |
| p_D,W | Specifies the saturation vapor pressure at a given water temperature. |
| β_b | Defines the water transfer coefficient for used basins. Clicking on opens a list of guideline-compliant water transfer coefficients for used pool types. Select a list entry to apply the water transfer coefficient. You can then adjust the value if necessary. Note: Leisure pools with a large number of attractions operated individually or simultaneously generally cause additional evaporation flows, which must be taken into account when determining the required air volumes and dimensioning the ventilation and air conditioning systems. If and to what extent these evaporation flows occur depends largely on the nature of the attractions, their number and mode of operation and must be estimated individually by the planner. |
| Δβ_A | Determines the water transfer coefficient of the attractions for pools with water attractions. Click on in column A to open the Attractions dialog in which you can select different attractions. If necessary, you can adjust the value resulting from the attraction selection to the requirements of your project. Adjusted values are displayed in bold. |
| β_b, total | Displays the total water transfer coefficient resulting from β_b and, if applicable, Δβ_A. |
| M_L | For water attractions with aerated water flows, specifies the aerated mass flow rate of the attractions, which is required together with x_D.W in order to take the water vapor discharge of the aerated flows into account when determining the air volume. |
| x_D,W | Defines the water vapor content of the aeration mass flow for water attractions with aerated water flows, which is required together with M_L in order to take the water vapor discharge of the aeration flows into account when determining the air volume. |
| M_D,B+A.b | Specifies the total evaporated water mass flow of the pool including any existing attractions and attractions with aerated water flows. Based on these mass flows and the evaporation water mass flows of any existing slides and white water channels, the required outside air design volume flow for the swimming pool hall is determined, taking into account the outside air density. |
Slides and White Water Channels
In this section, the parameters for determining the evaporated water mass flows of all slides and white water channels in the swimming pool hall are defined. In addition, the evaporated water mass flows of water attractions in white water channels can be taken into account.
By clicking you have the possibility to copy the contents of the table with or without column heading and paste it into Excel.
If you have selected individual rows or cells, you can copy the selected data with the key combinations Ctrl+C (with column heading) or Ctrl+Shift+C (without column heading) and paste it into Excel, for example.
| Column | Description |
|---|---|
| Name | Specifies the name of the slide or white water channel. |
| t_W | Defines the water temperature of the flowing water stream of the slide or white water channel. |
| A | Enables the consideration of attractions in white water channels. Clicking on opens the Attractions dialog, in which you can select different attractions. |
| Width | Defines the average width of the flowing water stream of the chute or whitewater channel that is used to calculate the reference area A_B. |
| Length | Defines the length of the slide or whitewater channel and thus the length of the flowing water stream used to calculate the reference area A_B. |
| A_B | Defines the reference area for the evaporated water mass flow. If you specify the Length and Width, the reference area is calculated automatically. Manually entered and changed values are shown in bold. |
| p_D,W | Specifies the saturation vapor pressure at a given water temperature. |
| β_b | Specifies the water transfer coefficient. The default value is 50, which you can adjust as required. Adjusted values are displayed in bold. |
| Δβ_A | Defines the water transfer coefficient of the attractions for white water channels with water attractions. Click on in column A to open the Attractions dialog in which you can select different attractions. If necessary, you can adjust the value resulting from the attraction selection to the requirements of your project. Adjusted values are displayed in bold. |
| β_b, total | Displays the total water transfer coefficient of the slide or white water channel, which results from β_b and, if applicable, Δβ_A. |
| M_D,A | Indicates the total evaporated water mass flow of the slide or white water channel including any attractions. Based on these mass flows and the evaporation water mass flows of the swimming pools, the required outdoor air design volume flow for the swimming pool hall is determined, taking into account the outdoor air density. |
Side Rooms
For the room types Supervision Room, Shower Room, Toilet Room, Collective Changing Room and Changing Area, the information required for the calculation is entered in the Ancillary Rooms area. Depending on the selected room type in accordance with VDI 2089-1, the input fields relevant for determining the air volume are activated in this area.
Number of Showers: Defines the number of showers in shower rooms. The required air volumes for shower rooms are determined using this value and the Specific Volume Flow per Shower.
Number of Toilets/Urinals: Defines the number of toilets and/or urinals in toilet rooms. This value and the Specific Volume Flow Rate per Toilet/Urinal are used to determine the required air volumes for toilet rooms.
Specific Volume Flow per Area: Determines the specific area-related air volume flow that is used when determining the required air volumes for supervision rooms, collective changing rooms and changing areas. Default values are stored by the room type-dependent, directive-compliant volume flow rates, which you can adapt to the requirements of your project if necessary.
Specific Volume Flow per Shower: Defines the specific air volume flow per shower that is used to determine the required air volumes for shower rooms. The default value is a standard-compliant volume flow that you can adapt to the requirements of your project if necessary.
Specific Volume Flow per Toilet/Urinal: Defines the specific air volume flow per toilet and/or urinal that is used when determining the required air volumes for shower rooms. The default value is a standard-compliant volume flow that you can adapt to the requirements of your project if necessary.