functioninfiniteLineSource
Extends from Modelica.Icons.Function (Icon for functions).
Information
This function evaluates the infinite line source solution. This solution gives the relation between the constant heat transfer rate (per unit length) injected by a line heat source of infinite length and the temperature raise in the medium. The infinite line source solution is defined by
where ΔT(t,r) is the temperature raise after a time t of constant heat injection and at a distance r from the line source, Q' is the heat injection rate per unit length, ks is the soil thermal conductivity and hILS is the infinite line source solution.
The infinite line source solution is given by the exponential integral
where αs is the ground thermal diffusivity. The exponential integral is implemented in Buildings.Utilities.Math.Functions.exponentialIntegralE1.
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| Real | t | Time | |
| Real | aSoi | Ground thermal diffusivity | |
| Real | dis | Radial distance between borehole axes |
Outputs
| Type | Name | Default | Description |
|---|---|---|---|
| Real | h_ils | Thermal response factor of borehole 1 on borehole 2 |
Revisions
-
March 22, 2018 by Massimo Cimmino:
First implementation.