Phase change energy storage technology to promote the great development of solar heating

Phase change energy storage technology, to promote the great development of solar heating

-------- Kee polar Bear Storage Technology Co., Ltd.

After 30 years of development, China's solar energy industry has been very mature in using low-temperature technologies and products. Solar water is widely used in homes, hotels, hotels, schools, hospitals and other fields. However, in the field of solar heating applications, although many domestic Solar energy companies have conducted a lot of research and exploration, there is still no mature and feasible products and technologies. The reason, mainly because of the use of solar energy, energy storage can not be well achieved.

Solar energy is a free energy, inexhaustible, but solar energy is also an unstable energy. There are imbalanced problems during daytime and nighttime, which directly affect the effect of solar heating. Therefore, to achieve daytime heating, night use, energy storage is the key. At present, most of the domestic solar heating enterprises to carry out research on heating, solar water heating systems in the upgrade and improvement, are not well stored energy, which is currently solar heating can not be a good promotion of the main reason. However, I understand that with the application of a new technology, this issue is being overcome and solar heating will usher in a major revolution.

This technology is the phase change energy storage technology, the technology is the use of phase change temperature control mechanism, through the phase change of the storage medium to achieve the thermal energy storage and release. When the ambient temperature is lower than a certain value, the phase change material condenses from liquid to solid and releases heat. When the ambient temperature is higher than a certain value, the phase change material melts from the solid state to the liquid state and absorbs heat.

The phase change energy storage product developed by this technology can well store daytime solar energy for night use. The combination of this technology and solar thermal products will greatly solve the problem that solar energy heating can not store energy well at present.

It is understood that this PCM technology was introduced from Germany in April 2011 by Polar Bear Storage Technology Co., Ltd. and has been innovated and improved. At present, four types of products have been developed to meet the heat storage needs of different types of customers. First, the universal energy storage unit has a built-in heat exchanger. When the heat medium flows through the internal heat exchange of the energy storage unit, energy is stored and released through the heat exchange between the heat medium in the pipe and the external phase change material in the pipe. The heat exchanger can realize the interconnection of different heat sources in the same heating system. The second is the high-performance energy storage unit with built-in double heat exchanger, which can realize the same heat supply system without external heat exchanger The direct storage of multiple heat sources can effectively enhance the heat exchange efficiency. Third, the instantaneous-type fresh water energy storage unit with built-in two or three heat exchangers provides direct heating and domestic hot water. The energy storage unit can replace Conventional domestic water tank, the water is too hot, the water quality is cleaner; Fourth, large-capacity energy storage system, each powerbox contains 12 energy storage units, multiple energy storage units can be combined to achieve the required thermal storage capacity.

According to Chief Engineer of Polar Bear Energy Storage Technology Co., Ltd., Polar Bear Storage Technology Co., Ltd. is a joint venture between China and Germany. At present, the company's phase transition energy storage technology has more than 10 years of mature application experience in Europe, North America, Southeast Asia and other countries and regions. Has won the recognition of more than 1,500 customers in 16 countries. Polar bear energy storage technology products have the following advantages: First, heat storage density, temperature, heat storage vessel size, high thermal efficiency. With the traditional energy storage material ---- water ratio, storage density up to 4 times the water, reducing space by one third, 80% lower than the heat loss of water; Second, a wide range of adaptability, for different applications Place, can provide different melting point of phase change energy storage products, will not produce water pollution caused by bacteria, the maximum available heat up to 100MWH; Third, the product phase change in the synthesis of phase change material, no degradation of performance, no Volatile, wear-free, pollution-free, non-corrosive, safe and efficient. Fourth, the structure is safe and reliable, modular design, heat storage energy can be configured according to customer demand for heat, installation and handling simple; Fifth, space-saving, simple construction, but also to achieve intelligent control; Sixth, can be used with different heat sources, In addition to solar heat utilization products, it can also be used in conjunction with heat pumps, biomass, heat pumps and other products, which will greatly enhance the effective use of new energy sources, effective use of industrial waste heat recovery, mobile heating, conventional heating System energy efficiency improvement and many other fields. The seventh is significant energy-saving effect, it is estimated that the technology and conventional boilers used in conjunction, can reduce 90% of the boiler system start and stop times, reduce pollution emissions, customers save more than 30% of energy consumption.

Industry leaders believe that the phase-change energy storage technology of Polar Bear Storage Technology Co., Ltd. is mature and feasible. The combination of this product and solar energy products can greatly promote the development of solar heating industry in our country and make an important contribution to the technological progress of solar energy industry in our country.

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