- GU Pressure Calculator
Standalone Tool
Granulation Pressure and Duration Calculator — Indutherm GU Series
Calculator for estimating the starting gas pressure, ending gas pressure and linear ramp duration required to compensate for the reduction in melt hydrostatic pressure during granulation.
Input Data
kg
g/cm³
Bar(g)
mm
pc
mm
Calibration / Machine constants
—
—
mm
mm
Results
Recommended starting pressure
0.000
Bar(g)
Recommended pressure at the end
0.000
Bar(g)
Ramp / drain duration
0.00
s
Duration in [m]:ss
0:00
formatted time
OK
| Cross-sectional area of the crucible | |
|---|---|
| Metal volume | |
| Initial height of metal | |
| Filling degree of the crucible | |
| Hydrostatic pressure at the beginning | |
| Hydrostatic pressure at the end | |
| Target total pressure on the holes | |
| Total area of holes | |
| Flow rate while maintaining constant pressure | |
| Volume drained | |
| Pressure increase per cycle |
Pressure and melt height during the cycle
Gas pressure
Metal height
Accepted assumptions
- The machine performs a linear pressure ramp from the initial to the final value.
- The ramp is selected so that the total pressure on the holes is approximately constant.
- The flow rate is then treated as constant, and the ramp time is taken equal to the drain time.
- Viscosity, wetting, oxide film and geometric losses are included only through the flow coefficient Cd and the calibration coefficient.
