| As a special geomorphic unit with both land and sea characteristics, sandy islands have special ecological and environmental conditions and great pressure on resources and environment. Taking Tangshan Longdao in Hebei Province as the research area, this paper comprehensively determined that the island was the suitable area for the application of shallow geothermal resources, and carried out the thermal response test of Sandy Island under different working conditions. The calculation showed that the heat transfer capacity of Longdao in summer (water supply temperature was about 33 ℃) was 63.76 W/m, the heat transfer capacity of Longdao in winter (water supply temperature was about 6 ℃) was 34.75 W/m, and the shallow geothermal capacity was 1.84 × 1012 kJ/℃ The engineering suggestions for the development and utilization of ground source heat pump in Sandy Island area are put forward. The research results of this paper have reference significance for the scientific research and efficient utilization of shallow geothermal in sandy islands, and will contribute to the early realization of the dual carbon target in coastal areas. |
