±¬×ߺÚÁÏ

Cryodistribution passes review

29 Jul 2011 - Hyun-Sik Chang, Cryogenic Distribution Engineer
The fourth and last CDR of the ±¬×ߺÚÁÏ cryogenic system—cryodistribution—was conducted on 20-21 July.

The fourth and last Conceptual Design Review (CDR) for the ±¬×ߺÚÁÏ cryogenic system was held this week. The CDR for cryodistribution was conducted during 20-21 July, successfully meeting all requirements.
 
The main function of the ±¬×ߺÚÁÏ is to cool down and maintain the required cryogenic operating conditions of the ±¬×ߺÚÁÏ cold components such as the magnets, the cryopumps and the in-tokamak thermal shields. The cryoplant on the ±¬×ߺÚÁÏ platform will produce the required cooling power at the three required operating temperature levels, namely at 4 K, 50 K, and 80 K.
 
The distribution of cooling power will be accomplished through a set of cryodistribution cold boxes, which control the cooling power into the ±¬×ߺÚÁÏ cold components by forced flow.
 
A unique feature of ±¬×ߺÚÁÏ cryodistribution is the mass flow rate of the cold rotating machines: the machines will have a mass flow rate that ranges up to 3 kg/s whereas existing limits are around 1 kg/sec. Such high flow rates are necessary to satisfy the cooling requirements of the ±¬×ߺÚÁÏ superconducting magnet system ... another unique system in many ways.
 
With the successful conclusion of the cryodistribution CDR, the conceptual design of ±¬×ߺÚÁÏ's cryogenic system is now completed and the way paved for the construction of the world's second largest cryogenic facility (following CERN).