Treatment
Pre-heat + humidify + post-heat
Altitude [m]
Air flow [m³/h]
Inlet T [°C]
Inlet RH [%]
Humidifier
Adiabatic (isenthalpic)
Efficiency [%]
Final T [°C]
Final RH [%]
Air properties at each point
| Point | t [°C] | φ [%] | x [g/kg] | h [kJ/kg] | v [m³/kg] | ρ [kg/m³] | T dew [°C] | T wet [°C] | V [m³/h] | dry air [kg/h] | moist air [kg/h] | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Inlet | 5.0 | 80.0 | 4.31 | 15.9 | 0.793 | 1.266 | 1.8 | 3.6 | 10,000 | 12,603 | 12,658 |
| 2 | Pre-heating coil outlet | 28.9 | 17.5 | 4.31 | 40.1 | 0.862 | 1.166 | 1.8 | 14.4 | 10,860 | 12,603 | 12,658 |
| 3 | Humidifier outlet | 16.5 | 79.6 | 9.30 | 40.1 | 0.833 | 1.212 | 12.9 | 14.3 | 10,496 | 12,603 | 12,721 |
| 4 | Final outlet | 24.0 | 50.0 | 9.30 | 47.8 | 0.854 | 1.181 | 12.9 | 17.1 | 10,768 | 12,603 | 12,721 |
Powers and water per step heating +, cooling −; sensible = ṁ·(cpa + x·cpv)·ΔT, latent = total − sensible
| Step | From → To | ΔT [K] | Total [kW] | Sensible [kW] | Latent [kW] | Water [kg/h] |
|---|---|---|---|---|---|---|
| Pre-heating | Inlet → Pre-heating coil outlet | +23.9 | +84.96 | +84.96 | 0.00 | 0.00 |
| Adiabatic humidification | Pre-heating coil outlet → Humidifier outlet | -12.4 | 0.00 | -44.18 | +44.18 | +62.82 |
| Post-heating | Humidifier outlet → Final outlet | +7.5 | +26.92 | +26.92 | 0.00 | 0.00 |