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Line 3: − *The catchment (roof) would be 100% impervious+ − *The rainwater harvesting system would be a 'Storage' Element with the following properties:+ − **Storage type = No removal+ − **Lined+ − **Underlying soil = <em>doesn't matter, can ignore</em>+ − **Evaporation factor = 0+ − **Suction head (mm) = 0+ − **Saturated conductivity (mm/hr) = 0+ − **Initial soil moisture deficit (fraction) = 0+ − *The dimensions of the rainwater cistern can be placed into the fields:+ + + + + + + + + + + + +
no edit summary
Once the size of cistern has been determined, it can easily be modeled in many open source and proprietary applications. For planning purposes, a RWH system could be integrated into a site plan using STEP's Treatment Train Tool. This tool provides a graphical user interface and simplified inputs on the EPA SWMM model. It is free to download, click image above.
Once the size of cistern has been determined, it can easily be modeled in many open source and proprietary applications. For planning purposes, a RWH system could be integrated into a site plan using STEP's Treatment Train Tool. This tool provides a graphical user interface and simplified inputs on the EPA SWMM model. It is free to download, click image above.
In a typical configuration:
In a typical configuration:
{|class="mw-collapsible mw-collapsed wikitable"
|-
|Catchment (roof)||100% impervious
|-
|colspan = 2| The rainwater harvesting system would be a 'Storage' Element with the following properties:
|-
|Storage type||No removal
|-
|?||Lined
|-
|Underlying soil||<em>Doesn't matter</em>
|-
|Evaporation factor||0
|-
|Suction head (mm)||0
|-
|Saturated conductivity (mm/hr)||0
|-
|Initial soil moisture deficit (fraction)||0
|-
|colspan = 2|The dimensions of the rainwater cistern can be placed into the fields:
#Bottom elevation (m)
#Bottom elevation (m)
#Maximum depth (m)
#Maximum depth (m)
#Initial water depth (m)
#Initial water depth (m)
#The Curves table is designed to accommodate ponds of roughly conical dimensions. A rainwater cistern is usually cuboid or cylindrical in shape, so that the area (m<sup>2</sup>) will remain the same throughout the depth.
#The Curves table is designed to accommodate ponds of roughly conical dimensions. A rainwater cistern is usually cuboid or cylindrical in shape, so that the area (m<sup>2</sup>) will remain the same throughout the depth.
|}
[[category:modeling]]
[[category:modeling]]