Examples
Examples
Try the starting example
- Initial fresh water (L)
- 100
- Initial grey water (L)
- 0
- Grey tank capacity (L)
- 80
- Daily plan JSON [[fresh use L,fresh refill L,grey disposal L],...]
- [[20,0,0],[20,0,0],[20,50,50]]
- Fraction of fresh use reaching grey tank
- 0.9
- End-of-day fresh/grey levels (L)
- [[80,18],[60,36],[90,4]]
- Largest fresh shortage (L)
- 0
- Largest grey-capacity exceedance (L)
- 0
Try another scenario
- Initial fresh water (L)
- 110.00000000000001
- Initial grey water (L)
- 0
- Grey tank capacity (L)
- 80
- Daily plan JSON [[fresh use L,fresh refill L,grey disposal L],...]
- [[20,0,0],[20,0,0],[20,50,50]]
- Fraction of fresh use reaching grey tank
- 0.9
- End-of-day fresh/grey levels (L)
- [[90,18],[70,36],[100,4]]
- Largest fresh shortage (L)
- 0
- Largest grey-capacity exceedance (L)
- 0
Calculation method
Calculation method
End-of-day fresh/grey levels (L)
Daily fresh+=refill-use; grey+=use×fraction-disposal; negative planned grey rejected.
Largest fresh shortage (L)
Daily fresh+=refill-use; grey+=use×fraction-disposal; negative planned grey rejected.
Largest grey-capacity exceedance (L)
Daily fresh+=refill-use; grey+=use×fraction-disposal; negative planned grey rejected.
Symbols and units
- a
- Initial fresh water (L)
- b
- Initial grey water (L)
- c
- Grey tank capacity (L)
- d
- Daily plan JSON [[fresh use L,fresh refill L,grey disposal L],...]
- e
- Fraction of fresh use reaching grey tank
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Calculation uses the entered values and stated mathematical model; quantities must use the labelled units. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. Daily fresh+=refill-use; grey+=use×fraction-disposal; negative planned grey rejected.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.