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Ground source heat pump in China's development has its own unique advantages. First, its initial investment costs are low, and the cost of incorporating a ground source heat pump system before building a new building is much lower than that of the old building. At the same time, the labor cost in our country is relatively low, so the capital cost is also lower low. Therefore, compared with developed countries, the initial investment is relatively less. Second, it can improve the quality of urban environment. Ground-source heat pump is powered by electricity, will not cause air pollution due to fuel combustion, and because the manufacturers sealed formulations, the process does not leak, reducing the destruction of the ozone layer. It can be seen that the application of ground source heat pump has played an active role in reducing the greenhouse effect and can alleviate the urban air pollution problem. Third, we can solve the problem of energy shortage. For ground source heat pump technology, because the heat pump is only used to transmit heat instead of generating heat, 70% of the required heat is from the ground, so the application of energy saving technology of ground source heat pump can alleviate the energy of our country to a certain extent pressure. Fourthly, the development of ground-source heat pumps has also been supported by relevant national policies. In short, ground source heat pump in our country has a good prospect.
However, we must also note that ground source heat pumps also encounter some problems during the promotion of our country. First of all, there are not many ready-made technical data on the heat pump below our country, lack of technical personnel in this area, and fewer manufacturers related to manufacturing, so this situation is not conducive to the promotion of this technology. Secondly, at present, there are no preferential policies for promoting the development of ground source heat pump technology in our country. Many users can not see the immediate benefits and adopt other air conditioning systems. Finally, the countries of North America and Scandinavia where the heat pump technology is relatively developed in the world are basically only used for heating due to the climatic conditions, while the vast territory of our country is located in a temperate zone. The climatic conditions vary greatly in different regions and the loads are also quite different. Therefore, we can not copy the technological achievements of other countries and develop technologies suitable for the climate characteristics of our country.
Ground source heat pump in China's development of unique advantages
As early as the beginning of last century, foreign countries began to study the performance of ground-source heat pumps. At present, ground-source heat pumps in the United States have become a mature and completely industrialized technology. As of 2001, 400,000 ground-source heat pumps have been installed and are still steadily growing at a rate of 10% per annum. In Nordic countries like Sweden, 90% of houses have ground-source heat pumps. Relatively speaking, China's research on ground-source heat pumps was much later, until some units in the 1980s did not start systematic research on it. 1998 is a milestone for our country in this field. Since the beginning of this year, several domestic universities have established experimental platforms for ground-source heat pumps in succession. At the same time, some specialized manufacturers have also been set up in China to start mass production of related products. This is greatly Accelerate the pace of developing ground source heat pumps in our country.