17–22 May 2026
C.I.D
Europe/Zurich timezone

DEGASSING OF DISTILLED WATER-COOLING CIRCUITS AND ITS EFFECTS COPPER-WALLED STRUCTURES

MOP7148
18 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Board: Monday roquefort: RD30
Poster Presentation MC7.T21: Infrastructures Poster session

Speaker

Mr Richard Kan (Paul Scherrer Institute)

Description

Cooling circuits running with distilled water to cool copper structures like magnets or cooling plates are vul-nerable to air leaking in. The leaked-in air contains car-bon dioxide that lowers the pH from 7 to acidic condi-tions in distilled water and enables dissolved oxygen to react with the surface of the copper tubing, forming cop-per oxides that can grow and mechanically be displaced to clog in locations where the flowrate is low. The pro-cess also reduces the wall thickness of the tubing, even-tually followed by water leakage. Regular unclogging causes the circuit to be opened more often and therefore accelerating the destructive process. A good solution to this problem comes with a steep price: degassing by re-verse osmosis in every copper cooling circuit as dis-solved oxygen is the main problem.

Paper status Resubmitted proceeding files received and assigned to an editor. Accepted by Submitter.

Author

Mr Richard Kan (Paul Scherrer Institute)

Co-authors

Mr André Weber (Paul Scherrer Institute) Robert Eichler (Paul Scherrer Institute)

Presentation materials