An experiment to prove the concept of the downhole coaxial heat exchanger (DCHE) in Hawaii

Basic Information
Author: Morita, Koji, Bollmeier, Warren S, Mizogami, Husanobu
Description:The first experiment for the Downhole Coaxial Heat Exchanger (DCHE, see Fig. 1) was carried out successfully at the HGP-A well on the island of Hawaii using an interval from the surface down to a depth of 876.5m. The temperature at the bottom of the DCHE before the onset of the experiment was 110 C. The observed highest hot water temperature during the experiment was 98 C, and the maximum gross and net thermal outputs were 540 kW and 370 kW, respectively. The experiment proceeded smoothly and excellent agreement between measured values and computed values was obtained in the analysis (Morita et a/., 1992). Thus, the concept of the DCHE was proved to be sound.
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Author Contact Information
Distributor Contact Information
Name: Beth Tillinghast
Organization Name: Missing
Street: Hamilton Library
City: Honolulu
State: HI
Zip: 96822
Phone: (808) 956-6130
Geographic Extent
North Bounding Latitude: 22.8654293041
South Bounding Latitude: 18.550589138
East Bounding Longitude: -154.479316272
West Bounding Longitude: -160.631660022