Solar heat pump technology (4) - heat pumps, solar energy, technology - heat pump industry

Solar heat pump technology (4) - heat pumps, solar energy

, technology - heat pump industry

Heat Pump Network

HC 4. Solar Energy Heat Pump Application integration and architecture

Recent years, with solar energy business development and Building energy efficiency Requirements, as the city's development and improvement of living standards, "solar energy and construction integration" and "all-weather heating" has become an important topic of solar thermal utilization. "Solar energy and construction integration" is to install solar energy products as building elements, combine to meet the architectural aesthetic requirements, and possible use of solar and other new Energy And renewable Energy Replace conventional energy sources to reduce building energy dependence on conventional energy sources and reduce building energy consumption accounts for the proportion of China's total energy consumption and increase the utilization of conventional energy. As the solar thermal Pump With the collector efficiency, high heating coefficient of performance, diversity, flexible layout, use of a machine, the advantages of wide application, can meet the "solar energy and building integrated" requirements. As the solar energy has a low density, intermittent and non-stability of the shortcomings of conventional solar heating system is difficult to satisfy the "all-weather" requirements, to satisfy the "all-weather" requirements, the conventional method is to use electric heating or gas heating for the auxiliary heat source , but it is easy to create security problems, and consume a lot of good energy, solar heating system can be better used to solve the "weather" issue.

Present, solar energy heat pump primarily in the public buildings, such as the Beijing Olympic Village and Olympic venues, hot water and heating are using solar energy heat pump heating system.

5. Solar Heat Pump Problems

Our development and application of solar energy heat pump, there are still some problems:

1) investment economy. Energy mix and fuel prices directly affect the economics of solar heat, for example, in western China, coal-dominated energy structure and lower fuel prices will affect the market competitiveness of solar energy heat pump. Meanwhile, the solar heat pump system, the high initial investment is affecting the economy of one of the factors.

2) Reliability. Various types of solar heat pump performance to be improved to make the matching relationship between components to achieve the best value investment operation, system design and architecture to integrate not only to consider the system performance will have to consider building appearance, to the implementation of intelligent control, which requires all professional fields to work together, complement each other.

3) public awareness about the lack of sufficient knowledge and understanding. At present, solar energy heat pump in China restrict the application of the main obstacles is the relatively high initial investment, and government, building designers and the public about the lack of sufficient knowledge and understanding. By government departments, research institutions and Project Technical staff to work together, learn from the successful experience of foreign countries, China solar energy heat pump will be developed and promoted faster.

6. Conclusion

Solar energy on earth, all the major sources of pollution are endless clean energy, but also the best hope of mankind in the 21st century energy. China's vast territory, the annual sunshine time is greater than 2000h of the area land area accounting for about 2 / 3, in the use of solar energy more favorable in the region. Solar heat pump technology is solar thermal technology and combined heat pump technology organic, with high collection efficiency, high heating coefficient of performance, diversity, flexible layout, use of a machine, the advantages of wide application, can solve the "solar energy and Building integration "and" weather "issue. Solar heat pump technology will play an important role in solar energy utilization, there are broad prospects for development.

Editor: Sub Yoon

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