Difference between revisions of "Design Flow Rate (rainwater drainage)"
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In the context of rainwater drainage, the computation of design flow rate can be categorised into the following: | In the context of rainwater drainage, the computation of design flow rate can be categorised into the following: | ||
| − | # Effective plan catchment | + | # Effective plan catchment |
# Elevation catchment (for wind driven rain) | # Elevation catchment (for wind driven rain) | ||
| − | Design flow rate (l/s) = Effective Catchment Area (m | + | Design flow rate <math>(l/s)=</math> Effective Catchment Area <math>(m^2)</math> X Rainfall Intensity <math>(mm/hr) \div 3600</math> |
| − | The method of calculating Effective catchment areas can be referred to [[Catchment area]]. | + | The method of calculating Effective catchment areas can be referred to [[Catchment area (effective) (roof drainage)]]. |
== References: == | == References: == | ||
| − | # BS EN 12056-3:2000 | + | #BS EN 12056-3:2000 |
Latest revision as of 11:03, 12 September 2017
In the context of rainwater drainage, the computation of design flow rate can be categorised into the following:
- Effective plan catchment
- Elevation catchment (for wind driven rain)
Design flow rate 
Effective Catchment Area 
X Rainfall Intensity 
The method of calculating Effective catchment areas can be referred to Catchment area (effective) (roof drainage).
References:
- BS EN 12056-3:2000
