Table 2 Boundary conditions
From: Heat transfer analysis of underground U-type heat exchanger of ground source heat pump system
Boundary type | Velocity (m/s) | Temperature (K) | |
|---|---|---|---|
Fluid part | |||
Inlet | VELCITY_INLET | 0.65 | 308 |
Outlet | OUTFLOW | ||
Solid part | |||
Distant surface | Gradually reduce from upper to bottom | ||
Borehole wall | Coupled wall | ||
Pipe wall | Coupled wall | 289 | |
Bottom surface | Constant temperature | ||
Top | Heat insulation | ||