What kind of ice production is used in the National Speed Skating Center

The use of CO2 ice production.

In order to reduce carbon emissions, the National Speedskating Stadium used CO2 transcritical direct cooling ice-making technology for the first time in the history of the Olympic Games. It is reported that this is currently the world's most environmentally friendly ice-making technology, carbon emissions close to zero. At the same time this is also the world's most advanced ice technology, the temperature difference between the ice surface can be controlled within 0.5 degrees Celsius, in the Olympic Games, athletes can create excellent results to provide the highest standard, the most excellent venue conditions. In the operation after the Olympic Games, nearly two million degrees of electricity can be saved annually, laying a good foundation for the long-term sustainable development of the arena.

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Initially, when learning, the most important thing is to be bent in both legs so that the center of gravity can be shifted forward, and the whole person is not easy to lean backward, and forward when the fall of the time they can also be adjusted to stop the fall forward in time. The first thing you need to do is to stop falling forward in time.

The biggest difficulty for beginners is to maintain balance, many people do not maintain balance, often backward, and then can not control the fall on the ground, so it is easy to hurt the tailbone, so we need to contact more balance skills.

People's Daily Online - National speed skating hall "ice ribbon" completed today, next year January will be the first time to make ice