| Parameter | Literature | Excel XLS | Error | |-----------|------------|-----------|-------| | Entrainment ratio | 0.85 | 0.83 | -2.4% | | Optimum area ratio | 12.4 | 12.8 | +3.2% | | Critical back pressure | 0.32 bar | 0.315 bar | -1.6% |
Designing an ejector in Excel involves balancing thermodynamic mass and momentum equations to find the right dimensions for a specific entrainment ratio. While many engineers rely on manufacturer data sheets
Remove 200 kg/h of air (suction) from a vacuum column at 0.3 bar abs, compressing to 1.2 bar abs, using 8 bar g steam.
