SUNSET Beta 1

PURPOSE

To determine infiltration efficiency of a bio-retention system

RAIN

 Average rain year
 Depth 23.9 inches
 Timesteps 5 minutes interval

USER DATA

 Catchment area (acres)
 Infiltration area (sqft)
 Infiltration rate (inch/hr)
 Allowable ponding depth (inch)

OPTIONS

Single Calculation
 For single calculation

Iterate 1
 Calculations for multiple sizes of infiltration area.
 User can determine the number of steps.
 For example:
  Soil area is 100 sq ft. The user can select 5 steps.
  The iterations will proceed for five data points with 20 sq ft increment.

Iterate 2
 Efficiency calculation for various combinations of soil area and ponding depths.

ASSUMPTIONS

 Mass balance model
 Constant infiltration rate
 Only infiltration and overflow

DISCLAIMER

Use at your own risk.

2018 B. Shrestha