Saving, loading and exporting
An interpretation is saved with the project rather than on its own. A single .ghe file carries the measured data, every phase boundary, every slider position and both sets of results, together with the work of the other modules on the same project. Reopening it restores the analysis exactly as it was left.
Creating a new project - Select to start a fresh interpretation. All inputs revert to their defaults and any loaded test data is cleared. Because the project is common to the suite, New clears the three modules and not the TRT panels alone. If it has unsaved changes you are asked to save first, and cancelling leaves everything as it was.
to start a fresh interpretation. All inputs revert to their defaults and any loaded test data is cleared. Because the project is common to the suite, New clears the three modules and not the TRT panels alone. If it has unsaved changes you are asked to save first, and cancelling leaves everything as it was.Saving a project - Select to write the project to its current location, or Save As to choose a new name or folder. The file dialog filters for Analysis Suite project (*.ghe). Save writes the whole project whichever module is active, so an interpretation is saved from the TRT panels and from those of the other modules alike. If no file has been assigned yet, Save behaves like Save As. The last folder used is remembered across sessions.
to write the project to its current location, or Save As 
to choose a new name or folder. The file dialog filters for Analysis Suite project (*.ghe). Save writes the whole project whichever module is active, so an interpretation is saved from the TRT panels and from those of the other modules alike. If no file has been assigned yet, Save behaves like Save As. The last folder used is remembered across sessions.Opening a project - Select Open to browse for a .ghe project. Every input, every phase boundary and both sets of results come back as they were saved, and the charts and the console are refreshed with them. Projects written by earlier releases still open, including the .trt files of TRT Analysis 1.x; saving one writes it back in the current format. Opening a project activates the GHE module, even a project carrying nothing but a test: switch back to TRT with the module button of the toolbar to see the interpretation.
to browse for a The .ghe project file - The .ghe extension is associated with the Analysis Suite application icon on Windows, so double-clicking a project file in Explorer opens it directly. A .ghe file is a compact binary archive (CBOR-encoded JSON) carrying the full project state.
on Windows, so double-clicking a project file in Explorer opens it directly. A It is also self-contained: the measured data is embedded in it, so the original .csv files are not needed to reopen, review or revise the interpretation, and the project can be sent to a colleague or archived on its own. Because the three modules share the file, a project opened and saved from one of them keeps what the others hold.
Exporting - As elsewhere in the Analysis Suite, the results can be taken out as CSV. In this module the export is automatic: two files are written alongside the project every time it is saved, one per interpretation method. Both are comma-delimited, both open in any spreadsheet, and both are overwritten at each save. Nothing is written when no test data is loaded, since there would be no result to report. A save also writes the result files of the other modules, named on the same project, so expect more than these two in the folder.
| File | Content |
|---|---|
{project}_FOA.csv |
First-order approximation results, as displayed on the console's FOA page, reported separately for the heating and the recovery phase. |
{project}_ShortTerm.csv |
Short-term g-function results — the calibrated parameters as left by the sliders, and the quality of the fit they produce. |
Each file opens with a short header explaining every quantity it carries, then the results themselves, then the interpretation context: the settings and the geometry the numbers were produced with. That last block is what makes a result reproducible, since neither λs nor Rb* can be replayed without the regression window and the inputs that fed it.
First-order approximation results - The file carries one row per quantity and two value columns, one for the heating phase and one for the recovery phase.
| Quantity | Unit | Description |
|---|---|---|
| Results | ||
| lambda_s | W/m·K | Ground thermal conductivity, from the regression slope |
| Rb* | m·K/W | Effective borehole resistance, from the heating-phase intercept. A dash in the recovery column: that regression carries no borehole-resistance term |
| q | W/m | Mean heat injection rate per unit borehole length used by the phase |
| tcr | h | Critical time 5rb²/αs, before which the line source does not apply |
| Residual mean | °C | Average of the regression residuals over the fitted window. |
| Residual sd | °C | Sample standard deviation of the residuals |
| RMSE | °C | Root mean square of the residuals |
| Interpretation context | ||
| Averaging method | — | Arithmetic mean or p-linear average of the inlet and outlet temperatures |
| Cs | MJ/m³·K | Ground volumetric heat capacity, which sets tcr |
| Tg | °C | Undisturbed ground temperature used by the regression |
| H, rb | m | Active length and radius of the test borehole |
| Sampling period dt | s | Time between two measurements |
| Injection duration | h | Length of the heating phase, which the recovery regression relaxes from |
| Regression windows | — | First and last sample fitted, for each phase |
Short-term g-function results - The file carries one row per quantity and a single value column, holding the position of each slider at the moment of the save.
| Quantity | Unit | Description |
|---|---|---|
| Calibrated parameters | ||
| lambda_s, Cs | W/m·K, MJ/m³·K | Ground thermal conductivity and volumetric heat capacity |
| lambda_g, Cg | W/m·K, MJ/m³·K | Grout thermal conductivity and volumetric heat capacity |
| alpha_s, alpha_g | m²/s | Thermal diffusivities λ/C the two pairs above imply |
| s | m | Shank spacing, centre to centre between the two pipes |
| Tg | °C | Undisturbed ground temperature fed to the short-term g-function |
| Quality of the fit | ||
| Residual mean | °C | Mean of the residuals over the whole test. Nothing forces it to zero here, so a departure from it is a bias rather than scatter |
| Residual sd | °C | Sample standard deviation of those residuals |
| RMSE | °C | Root mean square of those residuals, the figure to minimise while calibrating |
| Interpretation context | ||
| Excitation function | — | How the temperature difference across the borehole was obtained |
| Cf | MJ/m³·K | Fluid volumetric heat capacity |
| Mean flow rate | L/min | Averaged over the injection phase, the value handed to the short-term g-function |
| H, rb, ri, ro | m | Borehole and pipe geometry read by the short-term g-function |
| kp | W/m·K | Pipe thermal conductivity |
A dash in place of a value means the corresponding result did not converge, or does not apply. If a file cannot be written — most often because it is still open in a spreadsheet — the console reports it and the .ghe project itself is left untouched.