A. Air Heater Energy Requirement
kW = SCFM x (Texit – Tinlet) / 2500
B. Temperature Conversions
| °F |
= |
9/5 (°C) + 32 |
| °C |
= |
5/9 (°F – 32) |
C. Air Flow Conversions
| SCFM |
= |
SCFH / 60 = SLPM / 28.3 |
| SLPM |
= |
SCFH / 2.12 |
| SCMH |
= |
SCFH / 35.3 |
| SCFM |
= |
(Pounds of Air Per Minute) / (.080 lbs/ft3) |
|
| SCFM |
= |
Standard Cubic Feet per Minute |
| SCFH |
= |
Standard Cubic Feet per Hour |
| SLPM |
= |
Standard Liters per Minute |
| SCMH |
= |
Standard Cubic Meters per Hour |
D. Single Phase Wiring
| V |
= I x R |
(Volts = Amps x Ohms) |
| I |
= W / V |
(Amps = Watts / Volts) |
| W |
= V2/R |
(Watts = (Volts x Volts) / Ohms) |
E. Three Phase Wiring
Delta Configuration:
| R |
= R1 = R2 = R3 |
| Wdelta |
= 3(VL2)/R |
| Wdelta |
= 1.73 x VL x IL |
| IP |
= IL/1.73 |
| VP |
= VL |
Wye Configuration:
| R |
= R1 = R2 = R3 |
| Wwye |
= (VL2)/R = 3(VP2)/R |
| Wwye |
= 1.73 x VL x IP |
| IP |
= IL |
| VP |
= VL/1.73 |