The cost of photovoltaic power generation is high
It is not suitable for personal use at present. The cost of photovoltaic energy production is high and the payback time is too long. It will be 20 years before. free electricity can be used.
Geothermal heat pump The air source heat pump should now enter many homes
refrigerators silently.
The operating principle of the geothermal heat pump is the same as that of a domestic refrigerator. Through the circulation of gas phase changes in the evaporator, compressor, refrigerator, expander and other components, heat from low temperature objects is transferred to high temperature objects.
Geothermal heat pump is a new energy utilization technology that uses shallow underground energy for heating and coolingsement. It is a type of heat pump that uses the principles of the Carnot cycle and the reverse Carnot cycle for transfer. cold and hot equipment. Geothermal heat pumps typically transfer heat or cold from the ground to where it is needed.
Detailed information
The geothermal heat pump uses clean, renewable energy technology. Soil and surface water bodies are enormous solar collectors, collecting 47% of solar radiation energy, which is used more than 500 times by humans each year (underground water bodies receive the energy from solar radiation indirectly through the ground).
It is also a huge dynamic energy balance system. The soil and water on the surface naturally maintain a relative balance between receiving and emitting energy. The success of geothermal heat pump technology allows the use of presave all the energy. Unlimited solar energy stored in it.
If used in winter and summer, the geothermal heat pump system will have greater stability (the deeper the ground, the lower the air content in the middle and the less it is affected by ground temperature), and can reach theoretical feasibility.
Baidu Encyclopedia - Geothermal heat pump