TY - JOUR
TI - Numerical simulation and thermal analysis of ecological energy-saving ground source heat pump design
AU - Yang Linxin
JN - Thermal Science
PY - 2024
VL - 28
IS - 2
SP - 1501
EP - 1508
PT - Article
AB - By constructing the heat transfer model of the buried tube heat exchanger,  using the mathematical method and numerical calculation software, the  temperature of the buried tube heat exchanger is calculated numerical, so as  to better understand the temperature effect of the buried tube heat  exchanger on the surrounding soil. This paper establishes a mathematical  model of a vertically buried heat transfer system based on the principle of  thermal equilibrium and the thermal conductivity differential equation.  Conduct research on the temperature field around single pipes in different  soil (geological conditions), temperature field under different drilling  backfill materials, and the temperature around buried pipelines in both  short-term and long-term operation of the system. The experimental results  show that the simulation results of the system's short time (10 days) and  long time (90 days) performance show that the cooling and temperature cycles  in different areas directly affect the heat radius of the buried pipe and  the heat accumulation near the buried pipe. The thermal action radius of the  short-term operation system is about 1.8 m, and the long-term operation  reaches 4.5 m.