G-Function Library for Modeling Vertical Bore Ground Heat Exchanger

Published by Oak Ridge National Laboratory | Department of Energy | Metadata Last Checked: June 28, 2025 | Last Modified: 2021-10-31T06:00:01Z

This library contains g-functions (thermal response functions) for standard, regularly spaced vertical borehole ground heat exchangers. In total, it contains 34, 321 configurations. To permit interpolation, each configuration has g-functions for heights of 24, 48, 96, 192, and 384 m. All the g-functions were calculated with burial depths of 2m, and borehole diameters of 15 to 17.5 cm, depending on height. In configurations with uniform spacing, the spacing between the boreholes is set to 5m, though it can be scaled to other horizontal spacings.

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Complete Metadata

bureauCode	[ "019:20" ]
dataQuality	true
DOI	10.15121/1811518
identifier	https://data.openei.org/submissions/7442
issued	2021-06-30T06:00:00Z
landingPage	https://gdr.openei.org/submissions/1325
programCode	[ "019:006" ]
projectLead	Arlene Anderson
projectNumber	FY20 AOP 2.5.5.3.
projectTitle	Advanced Techno-Economic Modeling for Geothermal Heat Pump Applications in Residential, Commercial, & Industry Buildings
spatial	{"type":"Polygon","coordinates":[[[-180,-83],[180,-83],[180,83],[-180,83],[-180,-83]]]}