1. China Energy Statistical Yearbook 2020;National bureau of Statistics,2020
2. China Ground Source Heat Pump Development Report;Xu,2019
3. Physics of Frozen Soils;Xu,2001
4. The Heat Pump System with Air-Source Soil Heat Storage and Research on the Operation Characteristics in Severe Cold Area;Zhang,2012
5. Recent research and applications of ground source heat pump integrated with thermal energy storage systems: a review;Zhu;Appl. Therm. Eng.,2014