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HFOs chosen for the renovation of the Channel Tunnel refrigeration system.

The ban of the servicing of R22 equipment led tunnel operators Eurotunnel to consider refrigerants compliant with European HFC phase-down agreements.
 In order to maintain the Tunnel temperature below 30°C, refrigeration is needed, since, although at 50 meters below the sea level, its temperature would reach 50°C because of the heat generated by the circulation of the trains. Eight months of the year, huge fans circulating air cooled in cooling t...

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