Nomenclature | Value | Variable/units |
| D | 0.0124 | Inner channel diameter (m) |
| ki | 23 | Inlet concentrated pressure losses (-) |
| ke | 5 | Outlet concentrated pressure losses (-) |
| F | 0.01 | Friction factor (-) |
| L | 3.66 | Total length of the U-tube (m or ft) |
| ρf | 739.86 | Liquid saturated density (kg/m3) |
| ρg | 36.6 | Vapor saturated density (kg/m3) |
| µ | 9.46 × 10−5 | Liquid Dynamic viscosity at saturation (Pa s) |
| Wi | 0.1 | Mass flow rate per channel i (kg/s) |
| P | 7 | Absolute pressure (MPa) |
| T | 20˚C | Inlet temperature (˚C) |
| Q | 120 - 200 kW | Power delivered to each pipe |