Surface shallow geothermal resources (usually less than 400 meters deep) can be called Earth Energy (Earth Energy), refers to the surface soil, groundwater or rivers, lakes absorb solar energy, geothermal energy and low-lying latent heat. Ground source heat pump is the use of such low-temperature heat energy, as a heat pump heat pump and air-conditioning cold source, both heating and air conditioning system. Winter, the heat pump to the surface of the shallow heat / take / out, supply indoor heating; summer to take out the heat inside the house, released to the shallow surface to go. Ground source heat pump features are:
1 is a renewable energy technology
The superficial surface of the earth resembles a huge solar collector, collecting 47% of the solar energy, more than 500 times the amount of energy used annually by mankind. This near infinite, geographical and resource-limited low-enthalpy heat is a clean and renewable energy source that mankind can use. And unlike the solar energy can not be affected by the climate, nor the deep geothermal by the resources and geological structure constraints. In addition, ground source heat pump in winter heating, at the same time on the ground to store cold, to prepare for summer, summer air conditioning, but also to the ground to store calories for winter use. So ground source heat pump is a renewable energy technology.
2 high efficiency and low operating costs
Due to the relatively stable geothermal temperature throughout the year, the temperature in winter is higher than the ambient air temperature, the temperature in summer is lower than the ambient air temperature, which is a good heat pump heat source and air-conditioning cold source. This temperature characteristic makes the geothermal heat pump more efficient than the traditional air-conditioning system 40%, so to save energy and save about 40% of operating costs.
3 significant environmental benefits
It neither destroys groundwater resources nor is it polluted and can be built in residential areas. There is no burning, no smoke emission and no waste. There is no need to dispose of fuel waste and do not need to transport heat over long distances.
4 a machine dual-use
Ground source heat pump heating and cooling, hot and cold supply throughout the year, saving investment and land. Ground source heat pump, a kind of renewable energy utilization technology, is highly efficient and energy-saving without any pollution. It conforms to the trend of international energy development and conforms to China's energy and environmental protection policy. It is worth studying and energetically developing renewable energy utilization.
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