Travelling irrigators |
|
To calculate the distance an irrigator needs to travel (in metres) per hour: |
output volume in litres per hour° |
|
| desired depth of applied effluent in millimetres* |
|
| spray swath width in metres |
|
= |
| |
metres per hour |
° If you know your output volume as cubic metres (m³), multiply this value by 1000 to give litres per hour.
* The maximum depth for application is 25 mm at one time. |
|
Stationary spray 'cannons' |
| To calculate the length of time a spray head can be postitioned in any one place, three simple calculations have to be made: |
1. Determine the area covered by the spray head: |
|
|
x |
= |
|
radius of spray
circle in metres |
Pi |
area covered by the spray head in square metres |
2. Determine the quantity of effluent required to cover the area to the desired depth : |
desired depth of applied effluent
in millimetres* |
|
x |
= |
|
|
area covered by the spray head in square metres |
quantity of effluent required in cubic metres |
* The maximum depth for application is 25 mm at any one time. |
3. Determine the time the spray head can stay in one position: |
quantity of effluent required in cubic metres |
|
x |
= |
pump capacity in cubic metres
per hour |
|
minutes |
number of minutes the spray head can stay in any one position |
|
Slurry tankers / effluent wagons |
|
To calculate the distance an irrigator needs to travel (in metres) per hour: |
volume of the tanker in litres |
|
| desired depth of applied effluent in millimetres* |
|
| spray swath width in metres |
|
= |
|
metres to travel to empty each load |
| * The maximum depth for application is 25 mm at any one time |