Shallow geothermal energy resources potential evaluation and environmental effect analysis in China

摘要

Shallow geothermal energy is one of energies which are economic and clean. The paper shows that about 7.0×1011 kWh could be used for heating and cooling each year, evaluated by reservoir assessment method in 31 provinces, municipalities and autonomous regions of China. According the energy conservation principle, the whole shallow geothermal energy is used for air-conditions, then the area of air-condition is about 0.4×104 km2/a for heating, which could be used for 1.3 × 104 persons if 30m2 per person, and about 1.3×104 km2/a for heating, which could be used for 4.3×104 persons if 30m2 per person. It could reduce about 2.3×108 tons standard coal used by human, about 6.1×108 tons CO2, 1.98×106 tons SO2 and 1.73×106 tons NxOy discharged, which could reduce the trend of global warming.