Turbomachinery Maps: centrifugal_fan_80
Turbomachinery performance maps — compressor, turbine, fan, pump, and turbocharger characteristic curves showing efficiency, pressure ratio, head coefficient, and surge/choke boundaries at various speeds and flow rates
| machine speed | flow pct | flow coefficient | is choke point | is surge point | isentropic efficiency pct (%) | machine type | notes | speed pct (%) |
|---|---|---|---|---|---|---|---|---|
| centrifugal_fan_80 | 100 | 0.2 | false | false | 73.5 | centrifugal_fan | Full design flow at 80% speed; fan under-delivers static pressure vs full-speed design point; common VFD limit | 80 |
| centrifugal_fan_80 | 30 | 0.06 | false | false | 56 | centrifugal_fan | Very low flow fan 80% speed; affinity laws: static pressure scales N^2; head ~64% rated; near stall boundary | 80 |
| centrifugal_fan_80 | 40 | 0.08 | false | false | 64.5 | centrifugal_fan | Low flow fan 80% speed; efficiency rising toward BEP; useful for VAV systems at part load | 80 |
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