1. LCLS-II Cryoplant Overview
LANL Presentation, 26 April 2016
D. Arenius, LCLS-II Cryoplant CAM

2. Cryoplant Work Scope Cryoplant equipment cost and schedule
Infrastructure (civil) requirement information/coordination
Engineering and design (National/JLab/SLAC standards, SLAC engineering/designers embedded at JLab)
Fabrication (industry provided by JLab specified subsystems)
Installation documentation
Installation (contracted by Jlab)
Cryoplant controls
Training for operations (vendors/Jlab)
Commissioning (vendors, Jlab/SLAC engineers and technicians)
LCLS-II is the 5th plant collaboration (SNS,NASA JSC, BNL, FRIB) since 1999 and the 5th and 6th 2K JLab cryogenic plant design
LCLS-II Cryoplant Overview, April 26, 2016

3. LCLS-II Cryogenic Plant Capacity
Two identical plants, each producing refrigeration at…
2.0K 5K
35K
15 g/s of 4K
Each plant uses 5 stage serial connected sub atmospheric centrifugal compressors (cold compressors) to pump up to 215 g/s of 2.0K helium gas from atm to 1.2 atm.
LCLS-II Cryoplant Overview, April 26, 2016

4. FNAL/JLab Cryomodules
FNAL Distribution
FNAL/JLab Cryomodules
LCLS-II Cryoplant Overview, April 26, 2016

5. LCLS-II Cryogenic Plant Facility
LCLSII Cryoplant Site
Compressor Room 1
Compressor Room 2
Cold Box Room
LCLS-II Cryoplant Overview, April 26, 2016

6. Cryogenic Plant Layout, Two Plants (CP1 and CP2)
Warm Helium Compressors
Total Qty: 12
LCLS-II Cryoplant Overview, April 26, 2016

7. Cryogenic Plant Layout, Two Plants (CP1 and CP2)
4.5K Cold Boxes
GHe and LN2 Storage
LCLS-II Cryoplant Overview, April 26, 2016

8. Typical Upper 4.5K Cold Box and Oil Removal Vessels
12 GeV Upper Coldbox
LCLS-II Cryoplant Overview, April 26, 2016

9. Typical Upper CHL 4.5K Cold Box Shipping/Installation
LCLS-II FAC Review, July 1-2, 2014
LCLS-II Cryoplant Overview, April 26, 2016

10. Typical Lower 4.5K Cold Box Section
Top Platform of Lower 4.5K Cold Box
(control valves, turbines, control racks)
LCLS-II Cryoplant Overview, April 26, 2016

11. Typical Cryogenic Plant: Warm Helium Compressors
Gas Management System
Motor Control Center
~4MW Power, 3,000 gal/min H20
Warm Helium Compressors
LCLS-II Cryoplant Overview, April 26, 2016

12. “Standard” JLab Designed Warm Helium Gas Compressor
LCLS-II Cryoplant Overview, April 26, 2016

13. Other Sub Systems Gas Storage, 4 tanks LN2 Storage, 16k Gal
Helium Purifier
Guard Vacuum System
LCLS-II Cryoplant Overview, April 26, 2016

14. Thank You for Your Kind Attention May I answer your questions?
LCLS-II Cryoplant Overview, April 26, 2016