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- Title
INFLUENCING LAW OF KEY PARAMETERS ON THE THERMAL EFFICIENCY OF SINGLE-WELL CLOSED-LOOP HEAT EXCHANGER.
- Authors
Jing-Bin LI; Hao WANG; Huan LI; Chenrui GUO; Dong YANG
- Abstract
The single-well closed-loop heat extraction technology can realize efficient exploitation of mid-to-deep geothermal resources. A two-dimension heat transfer model is established. The effects of flow rate, inlet temperature, length and diameter of insulated tubing on heat extraction power and outlet temperature were investigated by the two-way absolute grey correlation analysis method. Results indicate that thermal power increases with the increase of displacement and length of insulated tubing, and decreases with the increase of injection temperature, outer diameter of insulated tubing and inner diameter of insulated tubing.
- Subjects
HEAT exchangers; THERMAL efficiency; GEOTHERMAL resources; HEAT transfer; TUBES; GROUND source heat pump systems; STATISTICAL correlation
- Publication
Thermal Science, 2024, Vol 28, Issue 2A, p1037
- ISSN
0354-9836
- Publication type
Article
- DOI
10.2298/TSCI230715022L