G-Function Library for Modeling Vertical Bore Ground Heat Exchanger
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.
Resources
10 resources available
-
C Configurations 5m.json
JSON -
L Configurations 5m.json
JSON -
Abstract and Library Overview.pdf
PDF -
Lopsided U Configurations 5m.json
JSON -
Open Rectangle Configurations 5m.json
JSON -
U Configurations 5m.json
JSON -
Zoned Rectangles Contained.xlsx
XLSX -
G-Function Library 1.0.zip
ZIP -
Open Rectangle Configurations 5m.json
JSON -
Zoned Rectangle Configuration 5m.json
JSON
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[
"019:20"
]
|
| contactPoint |
{
"fn": "Xiaobing Liu",
"@type": "vcard:Contact",
"hasEmail": "mailto:liux2@ornl.gov"
}
|
| dataQuality |
true
|
| description | 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. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "C Configurations 5m.json",
"format": "json",
"accessURL": "https://gdr.openei.org/files/1325/C_configurations_5m_v1.0%20%281%29.json",
"mediaType": "application/octet-stream",
"description": "Contains g-functions for standard, regularly spaced vertical borehole ground heat exchangers in the C configuration. This type of configuration may be thought of as an open rectangle configuration that has had some number of boreholes removed from the top side."
},
{
"@type": "dcat:Distribution",
"title": "L Configurations 5m.json",
"format": "json",
"accessURL": "https://gdr.openei.org/files/1325/L_configurations_5m_v1.0%20%281%29.json",
"mediaType": "application/octet-stream",
"description": "Contains g-functions for standard, regularly spaced vertical borehole ground heat exchangers in the L configuration. These configurations consist of a line N boreholes long and M boreholes wide. The L cases have a single row of boreholes."
},
{
"@type": "dcat:Distribution",
"title": "Abstract and Library Overview.pdf",
"format": "pdf",
"accessURL": "https://gdr.openei.org/files/1325/LibraryOverview_v11.1%20%281%29.pdf",
"mediaType": "application/pdf",
"description": "This document provides a guide to the data found in the submission. Documentation of json file structure and sample python code can be found in appendix 8."
},
{
"@type": "dcat:Distribution",
"title": "Lopsided U Configurations 5m.json",
"format": "json",
"accessURL": "https://gdr.openei.org/files/1325/LopU_configurations_5m_v1.0%20%281%29.json",
"mediaType": "application/octet-stream",
"description": "Contains g-functions for standard, regularly spaced vertical borehole ground heat exchangers in the lopsided U configuration. These configurations consist of U cases that have had some number of boreholes removed from their right side. These configurations all have a single row of perimeter boreholes."
},
{
"@type": "dcat:Distribution",
"title": "Open Rectangle Configurations 5m.json",
"format": "json",
"accessURL": "https://gdr.openei.org/files/1325/Open_configurations_5m_v1.0%20%281%29.json",
"mediaType": "application/octet-stream",
"description": "Contains g-functions for standard, regularly spaced vertical borehole ground heat exchangers in the open rectangle configuration. These configurations represent N by M rectangular cases where boreholes are only around the perimeter, but the perimeter can have more than one row of boreholes."
},
{
"@type": "dcat:Distribution",
"title": "U Configurations 5m.json",
"format": "json",
"accessURL": "https://gdr.openei.org/files/1325/U_configurations_5m_v1.0%20%281%29.json",
"mediaType": "application/octet-stream",
"description": "Contains g-functions for standard, regularly spaced vertical borehole ground heat exchangers in the U configuration. This type of configuration is U-shaped, with an opening at the top. The U may have up to 3 perimeter rows of boreholes around all sides of the U. The number of perimeter rows is represented with “t.”"
},
{
"@type": "dcat:Distribution",
"title": "Zoned Rectangles Contained.xlsx",
"format": "xlsx",
"accessURL": "https://gdr.openei.org/files/1325/ZRectsContained%20%281%29.xlsx",
"mediaType": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
"description": "Contains g-functions for standard, regularly spaced vertical borehole ground heat exchangers in the contained zoned rectangle configuration. For each row, Column A shows the number of perimeter boreholes in the x and y directions. Columns B and higher show the available configurations, where each pair represents the number of interior boreholes, which are laid out in a rectangular array, in the x and y directions."
},
{
"@type": "dcat:Distribution",
"title": "G-Function Library 1.0.zip",
"format": "zip",
"accessURL": "https://gdr.openei.org/files/1325/g-function_library_1.0.zip",
"mediaType": "application/zip",
"description": "This library contains g-functions for standard, regularly spaced vertical borehole ground heat exchangers. In total, it contains 34, 321 configurations. Included is a library guide that outlines what is included in the archive and instructions for using it."
},
{
"@type": "dcat:Distribution",
"title": "Open Rectangle Configurations 5m.json",
"format": "json",
"accessURL": "https://gdr.openei.org/files/1325/rectangle_5m_v1.0%20%281%29.json",
"mediaType": "application/octet-stream",
"description": "Contains g-functions for standard, regularly spaced vertical borehole ground heat exchangers in the open rectangle configuration. These configurations represent N by M rectangular cases where boreholes are only around the perimeter, but the perimeter can have more than one row of boreholes."
},
{
"@type": "dcat:Distribution",
"title": "Zoned Rectangle Configuration 5m.json",
"format": "json",
"accessURL": "https://gdr.openei.org/files/1325/zoned_rectangle_5m_v1.0%20%281%29.json",
"mediaType": "application/octet-stream",
"description": "Contains g-functions for standard, regularly spaced vertical borehole ground heat exchangers in the zoned rectangle configuration. This configuration type has had rows/columns removed from the interior zone to represent configurations where the interior spacing of the bore field is greater than that of the exterior (or perimeter) spacing."
}
]
|
| DOI | 10.15121/1811518 |
| identifier | https://data.openei.org/submissions/7442 |
| issued | 2021-06-30T06:00:00Z |
| keyword |
[
"energy",
"g-function",
"geothermal",
"ghp",
"ground heat exchanger",
"ground heat pump",
"heat exchanger",
"heat pump",
"library",
"model",
"simulation",
"thermal response functions"
]
|
| landingPage | https://gdr.openei.org/submissions/1325 |
| license | https://creativecommons.org/licenses/by/4.0/ |
| modified | 2021-10-31T06:00:01Z |
| 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 |
| publisher |
{
"name": "Oak Ridge National Laboratory",
"@type": "org:Organization"
}
|
| spatial |
"{"type":"Polygon","coordinates":[[[-180,-83],[180,-83],[180,83],[-180,83],[-180,-83]]]}"
|
| title | G-Function Library for Modeling Vertical Bore Ground Heat Exchanger |
