> For the complete documentation index, see [llms.txt](https://docs.ladybug.tools/dragonfly-primer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ladybug.tools/dragonfly-primer/components/5_districtthermal/ghe_pipe_parameter.md).

# GHE Pipe Parameter

![](/files/JrFsYOhFeBq69mXWTTGy)

![](/files/lNkgcglbamUvrKEdED7b) - [\[source code\]](https://github.com/ladybug-tools/dragonfly-grasshopper/blob/master/dragonfly_grasshopper/src//DF%20GHE%20Pipe%20Parameter.py)

Create a PipeParameter object that can be used to customize the pipe properties within a Ground Heat Exchanger (GHE) sizing simulation.

The output of this component can be used with either the "DF GHE Designer" component or the "DF GHE Thermal Loop" component.

### Inputs

* **inner\_diameter**

A number in Rhino model units (eg. Meters, Feet, etc.) for the diameter of the inner pipe surface in meters. (Default: 0.0216 meters).

* **outer\_diameter**

A number in Rhino model units (eg. Meters, Feet, etc.) for the diameter of the outer pipe surface in meters. (Default: 0.0266 meters).

* **shank\_spacing**

A number in Rhino model units (eg. Meters, Feet, etc.) for the spacing between the U-tube legs, as referenced from outer surface of the pipes in meters. (NOT referenced from each pipe's respective centerline). (Default: 0.0323 meters).

* **conductivity**

A number for the conductivity of the pipe material in W/m-K. (Default: 0.4).

* **heat\_capacity**

A number for the volumetric heat capacity of the pipe material in J/m3-K. (Default: 1,542,000).

* **arrangement**

Text for the specified pipe arrangement. Choose from the following options. (Default: SingleUTube).

```
* SingleUTube

* DoubleUTubeSeries

* DoubleUTubeParallel
```

### Outputs

* **pipe**

A PipeParameter object that can be plugged into the "DF GHE Designer" component in order to customize pipe properties of a GHE sizing simulation. It can also be plugged into the "DF GHE Thermal Loop" component to perform a similar role in a District Energy Simulation (DES) of a loop with a ground heat exchanger.


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