L o a d i n g
Organization
National Renewable Energy Laboratory (NREL) - view all
Update frequencyunknown
Last updated4 days ago
Format
OverviewASHRAEborecalibrationdistrict heating and coolingdrilling loggeothermalgeothermal boreholeline-sourceloop temperatureprocessed datatechnical reportthermal conductivitythermal conductivity testthermal diffusivityundistrurbed formation temperaturevertical closed-loop systemwell data
This report summarizes a formation thermal conductivity test performed July 29-31, 2025 on a579-ft vertical bore at Northwestern Michigan College in Traverse City, Michigan. It describes the test setup, operating conditions, data acquisition procedures, calibration details, and bore construction information, with loop temperatures and heat-input measurements collected at five-minute intervals. Using the line-source analysis method consistent with ASHRAE and IGSHPA guidelines, the test produced an average formation thermal conductivity of 1.34 Btu/hr-ft-F, accompanied by figures and summary statistics documenting the measured response.
Additional Information
KeyValue
Dcat Issued2025-07-31T06:00:00Z
Dcat Modified2025-11-21T23:49:06Z
Dcat Publisher NameNorthwestern Michigan College
Guidhttps://data.openei.org/submissions/8569
Harvest Object Idb4ed6f39-174b-44e9-afaa-12ef4c30993a
Harvest Source Id4eb7107f-a2b1-40e3-b36a-8161aa98a56e
Harvest Source TitleOpenEI Data Portal
