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According to a report from the BBC on January 3, Tamil Nadu in southern India has launched two world-leading clean energy projects.
Tamilnadu, located in southern India, has created the first of two worlds in the field of clean energy. There is a factory recycling carbon dioxide gas and the world's largest solar power plant.
According to reports, the above-mentioned plants acquire carbon dioxide emitted from coal-fired boilers and use carbon dioxide to produce valuable chemicals. This is the first case in the world. The significance of this factory is that it has made a breakthrough in this regard: it is not necessary to use subsidies to actively use carbon dioxide.
The carbon dioxide-absorbing industrial plant is built in a chemical plant in the port city of Tuticorin. It is expected to reduce carbon dioxide emissions by 60,000 tons per year by including carbon dioxide as a chemical formula for baking baking soda and other compounds. the amount.
Just 100 kilometers away from the industrial plant is the world's largest solar farm, covering an area of ​​10 square kilometers, to meet the electricity needs of 150,000 households in India. This giant Kamuthi solar power plant also marks the ambition of India to accelerate its efforts to develop renewable energy. This is indeed a large-scale project; Looking down from a tall observation tower, the solar panels extend almost to the horizon. (Internship Compilation: Hou Wenwen Reviewer: Tan Liya)
The AIN crystal is a covalently bonded compound with a [AIN4] tetrahedron as a structural unit, and has a wurtzite structure and is a hexagonal system. Chemical composition AI 65.81%, N 34.19%, specific gravity 3.261g / cm3, white or grayish white, single crystal colorless and transparent, sublimation decomposition temperature under normal pressure is 2450 °C. It is a high temperature heat resistant material. Thermal expansion coefficient (4.0-6.0) × 10 -6 / ° C. Polycrystalline AIN has a thermal conductivity of 260W/(MK), which is 5-8 times higher than alumina, so it has good thermal shock resistance and can withstand extreme heat of 2200 °C. In addition, aluminum nitride is not attacked by aluminum liquid and other molten metals and gallium arsenide, and particularly has excellent corrosion resistance to molten aluminum liquid.
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