China wins Olympic honour for “green” refrigeration

CHINA: Of the 9 ice rink venues at the forthcoming Olympic and Paralympic winter season online games, 5 are applying CO2 refrigeration systems and 4 making use of R449A.

According to China’s State Council Information Office environment, in addition to delivering quality ice rinks acceptable for respective athletics in the levels of competition venues, it has stayed genuine to its commitment to host a inexperienced games by currently being eco-helpful in its ice-building.

The refrigerant R507, the HFC blend applied as a substitution for R502 and R22 in minimal and medium temperature refrigeration, was 1st deemed when the organisers begun to devise their ice-making plan. Though R507 is now banned in Europe owing to its exceptionally higher GWP of 3985, it is even now extensively utilized across the world.

Right after on the lookout into world wide enhancement traits and application of refrigerants, and obtaining discussions with refrigeration and air-conditioning authorities at residence and overseas, the organisers made the decision to apply individual ice-making ideas with the assistance of the International Olympic Committee.

China Nationwide Aquatics Centre

Venues that will need to make and preserve ice all year spherical, which includes the Countrywide Pace Skating Oval, use purely natural refrigerant CO2. By distinction, venues that only sometimes make ice, this kind of as the National Aquatics Centre and the Countrywide Indoor Stadium, use classic refrigerant.

A CO2 transcritical refrigeration method with heat restoration was set ahead as an ice-making answer for the Countrywide Velocity Skating Oval by a panel comprising a dozen academicians of the Chinese Academy of Engineering and Chinese Academy of Sciences, senior experts from domestic refrigeration associations and associates of the building crew.

In accordance to Tune Jiafeng, an engineer with the Oval’s building team, employing CO2 as a refrigerant can boost ice-generating effectiveness by 30% and help save all-around two million kilowatts of electrical power for each 12 months.

When it will come to venues that only will need occasional ice-creating, the Countrywide Aquatics Centre, the Nationwide Indoor Stadium and the Wukesong Sports Centre are themselves examples of Beijing’s atmosphere friendliness, as legacies from the 2008 Summer Online games. Beijing 2022 organisers experienced conversations and feasibility researches with devices suppliers, engineers and assistance vendors of the venues and resolved on applying R449A, a blend refrigerant with a GWP of 1282.

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