Call a g-function for a specific configuration

[DavideDC9]

How it is possible to recall a g-function stored in the library for a specific configuration?

[j-c-cook]

Can you explain your purpose?

I ask because this package is essentially deprecated with the recent developments to pygfunction. I did a comprehensive analysis in my thesis to prove that the equivalent borehole method (EBM) of Prieto and Cimmino (2021) along with unequal segment lengths (USL) is accurate. The EBM in combination with USL is so fast that ghedt utilizes live-time g-functions.

If I know what your intended purpose is I may be able to provide some better feedback.

[DavideDC9]

the purpose was to calculate long-term temperature by applying the load aggregation scheme.

[j-c-cook]

By long-term temperature do you mean the long term g-function or utilize a g-function to simulate a GHE to determine heat pump entering fluid temperatures? Are you using your own load aggregation or are you referring to something I've written? Do you mean the superposition of the unit step g-function with ground extraction loads?

[DavideDC9]

utilize a g-function to simulate a GHE to determine heat pump entering fluid temperatures. I m using load aggregation scheme in pygfunction. Yes.

[j-c-cook]

See the following example in ghedt: https://github.com/j-c-cook/ghedt/blob/main/ghedt/examples/gFunctions/live_g_function_sim_and_size.py

You can define your coordinates:
https://github.com/j-c-cook/ghedt/blob/93d159c7e6b42e0583ff837da37f40437f73bc32/ghedt/examples/gFunctions/live_g_function_sim_and_size.py#L67-L70

You can simulate to determine the heat pump entering fluid temperatures:
https://github.com/j-c-cook/ghedt/blob/93d159c7e6b42e0583ff837da37f40437f73bc32/ghedt/examples/gFunctions/live_g_function_sim_and_size.py#L128-L129

The g-function can be computed:

https://github.com/j-c-cook/ghedt/blob/93d159c7e6b42e0583ff837da37f40437f73bc32/ghedt/examples/gFunctions/live_g_function_sim_and_size.py#L138-L140

After looking at through the example file could you let me know what more you are needing?