Category | Quantities | Definition | Value (unit) |
Operating conditions | ma | Mass flow rate of moist air | 0.5 (kg/s) |
| mr | Mass flow rate of R22 | 0.04 (kg/s) |
| Ga,dl | Dimensionless mass velocity | 0.1 |
| Pain | Inlet air pressure | 150 Pa |
| Ta,in | Inlet air temperature to cooling coil | 24 (˚C) |
| Tdew | Dew point temperature of inlet air | 12.8 (˚C) |
| T∞ | Environment temperature | 310 (K) |
| qs | Sensible cooling load | 5.5 (kW) |
| ql | Latent cooling load | 2.5 (kW) |
| Uo | Overall heat transfer coefficient | 50 (W/m2×K) |
| f | Friction factor | 3 |
Thermal properties | hfg,r | Latent heat of vaporization of R22 | 198.4 (kJ/kg) |
| Cpa | Specific heat of moist air | 1.007 (kJ/kg×˚C) |
Geometrics | D | Hydraulic diameter | 0.45 m |
| cA | Ratio between Ao and nt | 3.5 (m2) |
| cL | Ratio between L and nt | 0.02 (m) |