The University of Nottingham Ningbo, China invents new building materials that can be self-controlled
Recently, the Sustainable Energy Technology Research Center of the University of Nottingham Ningbo, China invented a new type of building material. After setting a temperature and putting it into a building, the building can self-adjust and maintain the indoor temperature.
This material is called heat-conducting phase-change material, and its widespread use will reduce energy consumption by at least one-third. It is of great significance for energy conservation and environmental protection. Professor Jo Darkwa, Director of Sustainable Energy Technology Research Center, University of Nottingham Ningbo, China, and Associate Researcher Su Weiguang And PhD student Zhou Yuyu co-developed. At present, the building materials have been applied for patents in the country and the expected results will be announced in the near future. Patent applications in other countries are also under preparation.
This material appears to be a coin-sized wafer that effectively regulates the temperature by storing and releasing heat. Before putting it into use, the basic structure of the material needs to be designed to reach the required specific temperature. When the room temperature exceeds the set value, it begins to absorb and store the heat in the room to achieve the purpose of cooling; when the room temperature is lower than the set value, it will slowly release the stored heat and maintain the temperature balance. As a result, electricity expenses are greatly reduced.
New materials can absorb and release heat. Then do we not need air conditioning? Professor Qiao Dakai doesn't think so: “The emergence of this material will not replace the use of air conditioners because it cannot completely replace the air conditioning control room humidity and air. The circulation, and can only simply reduce the excess heat inside the room."
It is worth mentioning that the heat-conducting phase-change material is not immutable, and it can be made into different sizes and shapes according to requirements, and even can be processed into very small particles to be applied to the sprayed material. This makes it an extremely wide range of applications: it can be applied to existing buildings as well as to buildings under construction. From wall to ceiling to wallpaper, it can be almost everywhere. In addition, experts believe that the material can also be applied to solar panels and LEDs to improve their work efficiency.
Compared with building materials widely used in the current market, thermal phase change materials not only have advantages in storage capacity and thermal reaction speed, but also have low production costs and significant energy saving and emission reduction effects. “At present, the carbon emissions of the construction industry have exceeded the aviation industry and become the highest of all industries. In China, the construction industry is also one of the industries with the largest energy consumption, accounting for about 30% of the total energy consumption, and its pollutant emissions also occupy A large percentage," Professor Qiao Dakai said, if this building material can be widely used, it will greatly reduce the world's carbon emissions.
Next, the Sustainable Energy Technology Research Center plans to further develop this material technology and create building materials that can be used in high-temperature and low-temperature environments. It hopes to be able to use it in the market within two years. It is reported that at present, Ningbo City Government, Ningbo Municipal Science and Technology Bureau, Zhong Jian Guo Education Foundation, Wuxi Suntech Solar Electronics Co., Ltd. and other government departments and enterprises to provide funding and other support for the project.
In October this year, the University of Nottingham Ningbo, China will hold the second International Symposium on Low Carbon Architecture. Experts, scholars, government officials and practitioners from all over the world will have the opportunity to present and discuss the latest research results and demonstration projects. (Reporter Cao Mei Du Jinming correspondent Hu Min)
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