Argon Dewar Relief Set Pressure Modifications
This engineering note documents the calculations of Kelly Dixon, used to determine the maximum allowable set pressure for the argon dewar low relief valve, tag number PSV620A, Anderson Greenwood Type 526J. The original setting was 16 psig. This value was chosen in order to protect against cryostat overpressurization by the source dewar (see D0 Engineering Note 115), however, the following calculations will show that the set pressure can be raised to approximately 18.5 psig, which would result in a faster filling of the cryostat, along with a higher level of liquid argon. Three other engineering notes were revised to reflect the change in set pressure according to this note. They are notes 115, 219, and 263.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL
- Sponsoring Organization:
- DOE Office of Science
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1031772
- Report Number(s):
- FERMILAB-D0-EN-306
- Country of Publication:
- United States
- Language:
- English
Similar Records
Cryostat Filling Limitations for Proposed Ar Dewar Pressure Increase
D-Zero Central Calorimeter Pressure Vessel and Vacuum Vessel Safety Notes
High Pressure Source/Cryostat Relief Solutions
Technical Report
·
Tue Jul 23 00:00:00 EDT 1991
·
OSTI ID:1031759
D-Zero Central Calorimeter Pressure Vessel and Vacuum Vessel Safety Notes
Technical Report
·
Thu Oct 25 00:00:00 EDT 1990
·
OSTI ID:1031832
High Pressure Source/Cryostat Relief Solutions
Technical Report
·
Thu Aug 13 00:00:00 EDT 1987
·
OSTI ID:1030705