Study on performance and layout optimization of buried heat exchangers array in Karst landform

Applied Thermal Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 126307 - 126307

Published: March 1, 2025

Language: Английский

Composites with Synergistically Enhanced Thermodynamic and Mechanical Properties for Geothermal Heat Exchangers

Advanced Engineering Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 30, 2024

Geothermal energy, derived from the radioactive decay of elements within Earth's core, is a renewable and clean energy source. The extraction geothermal primarily depends on ground heat exchangers. To address issue incompatibility between corrosion resistance, high thermal conductivity, mechanical performance in current exchangers, this study develops composites (PEPOE/SCA@SiC) composed high‐density polyethylene (HDPE) modified with toughener polyethylene‐octene copolymer elastomer (POE) silicon carbide (SiC) crystals γ‐aminopropyltriethoxysilane (SCA). HDPE offers excellent SiC provide efficient phonon transport, SCA improves interface compatibility composite. conductivity PEPOE/SCA@SiC reaches 3.83 W m − 1 K , maximum tensile strength 20.3 MPa, elastic modulus up to 498 bending stress 22.2 MPa 561 MPa. Corrosion resistance tests indicate no signs when exposed simulation fluids at 90 °C for 30 days. This demonstrates that have substantial potential application offering promising prospects advancing sustainable use environmental protection.

Language: Английский

A Review of Exploiting Shallow Geothermal Energy through Tunnels: Current Status and Future Prospects

Renewable Energy, Journal Year: 2024, Volume and Issue: 238, P. 121958 - 121958

Published: Nov. 21, 2024

Language: Английский