What fuel does the Olympic flame use?

The torch of Beijing 2008 Olympic Games was inspired by the "auspicious cloud" pattern of "origin * * *, harmony * * *". The cultural concept of Xiangyun has a time span of several thousand years in China, and it is a representative symbol of China culture. The design of the torch was inspired by the traditional paper scrolls in China. Paper is one of the four great inventions in China. Through the Silk Road, it spread to the west. With the appearance of paper, human civilization has spread. The application of lacquer red, which originated in the Han Dynasty, on the torch made it obviously different from the torch design of previous Olympic Games. The contrasting colors of red and silver have produced striking visual effects, which are beneficial to various forms of media communication. The torch is divided into upper and lower parts, and the auspicious cloud pattern and three-dimensional relief process design make the whole torch elegant, gorgeous and rich in connotation.

The torch of Beijing Olympic Games is 72 cm long and weighs 985 grams. It burns for 15 minutes, and the flame height is 25-30 cm at zero wind speed. It can be recognized and photographed under strong light and sunlight. In terms of technology, one-step forming technology of conical surface and aluminum etching coloring technology are adopted. The fuel is propane, which meets the requirements of environmental protection. The torch shape is made of recyclable and environmentally friendly materials.

The torch of Beijing Olympic Games has reached a new technical height in terms of combustion stability and adaptability to the external environment. It can keep burning under the conditions of strong wind with a speed of 65 kilometers per hour and heavy rain with a speed of 50 millimeters per hour. By using lightweight and high-quality aluminum alloy and hollow plastic parts, it is very lightweight. The lower part of the torch is sprayed with high-touch plastic paint, which feels comfortable and is not easy to slide down. The torch of Beijing Olympic Games is a product independently designed and developed by China, which has complete intellectual property rights.

The fuel used for the torch of Beijing Olympic Games is propane, which is a low-cost common fuel. Its main components are carbon and hydrogen. After burning, there are only carbon dioxide and water, and there are no other substances, which will not pollute the environment.