CRYOGENIC SYSTEM of RAON Chul Jin Choi, Ki Woong Lee Cryogenics and Control Team Accelerator Division 5/23/2013 Chul Jin Choi, Ki Woong Lee Cryogenics and Control Team Accelerator Division 5/23/2013 RISP Workshop

Contents  Schedules  RAON Cryogenic System  SRF Test Facility Cryogenic System  Summary Tasks /23/2013 – RISP Workshop - Chul Jin Choi

Schedules RAON Cryoplant Preliminary Design Contract Procurement Delivery / Installation Commissioning RAON Distribution System Design Contract / Procurement Install & Commissioning SRF TF Cryogenic System He Liquefier Delivery / Install / Comm Distribution & Sub-Systems 2013 Tasks *RAON Distribution System: Distribution Box(DB), Transfer Line(TL), Valve Box(VB), 2K VB Shop Test Engineering RFQ Preliminary 1.RAON Cryoplant : Preliminary Design (RFQ) 2.TF Cryoplant : Sub-system Design & Contract Proc/Install Test Facility Cryo Maintenance Procurement Cont RAON Comm. Design/Contract Contract (5/6) 1Y 7M 6M Procurement /23/2013 – RISP Workshop - Chul Jin Choi  NFRI  KEK  TRIUMF 3

RAON Cryogenic System SCL1 SCL 3 All-in-one type (For SCL 1,2,3) SCL 2 Separated type (For Future Extension) CRCR DB Cold box IF System 20 kW Compressor Station Option 1Option 2 5/23/2013 – RISP Workshop - Chul Jin Choi

Cooling Scheme for HWR, SSR1 & 2 Central LHe  2K LHe Central SHe  4.5K LHe  2K LHe 4.6K, 1.3bar LHe 3-4K Sub-atm 40-70K GHe / 77K LN K GHe / 80K GN2 6-8K GHe Valve box 2K Module Cryomodule Beam line JTJT s A Valve Box & 2K Module for Every Cryomodules 5/23/2013 – RISP Workshop - Chul Jin Choi

Cooling Scheme for IF Separator Satellite Refrigeration for HTS & LTS HTS: Dipole (1), Quadrupole (6) : LTS : Dipole (7), Quadrupole (15) : Bath (2.8K) Warm Comp. Booster Pump (~2.8K) Central He Dewar 300K, 5bar 300K, 0.05bar SCM Re-Cooler /23/2013 – RISP Workshop - Chul Jin Choi  Need to fix T_input & ΔT for every SCMs

SRF TF Cryogenic System SH e Schematic of Cryogenic System for SRF Test Facility V.3.5 Coldbox C OR S LN2 HX 80K Ads 20K Ads Dewar 3000L 4.6K, 1.3bar Portable Dewar Warm Pumping (for 2K) Recovery & Purification Horizontal Cryostat Gas Bag R-Comp 150 bar Impure Purifier & Air Bottle Pure ORS He Liquefier LN2 150 bar 9.8 bar Dryer JT 2K Module Cool-down (300-80K) LN2 Test Benches Distribution Box HX Vertical Cryostats  Linac Demo  CM Test He Buffer Sep. 2K2K 2K2K 4K4K /23/2013 – RISP Workshop - Chul Jin Choi 2K Return He Recovery

Test plan Maximum required cooling capacity (1) Liquefaction rate (2) Mass flow rate into 2 K module (2K/4K Heat Exchanger) (3) Static load of CM + “one” SSR2 cavity excitation /23/2013 – RISP Workshop - Chul Jin Choi TEST Required Capacity Mass flow rate (g/s) Liquefier Capacity 4K 1. Vertical80 L/h (1) 4.0 (1) 120 L/h (150%) 2K 2. Vertical30 W1.6 (2) 330 W (110%) 3. Horizontal9 W0.5 (2) 4. Cryomodule25 W (3) 1.4 (2) 5. Linac demo20 W1.0 (2)

Summary – 2013 Tasks 5/23/2013 – RISP Workshop - Chul Jin Choi 9 1.RAON Cryoplant : Preliminary Design (RFQ)  All-in for the Preliminary Design  Foreign Lab : KEK, FNL, TRIUMF 2. TF Cryoplant : Sub-system Design & Contract  Distribution System  2K Module  Recovery & Purification System 3. R&D Outsourcing  NFRI : RAON Cryogenic System Preliminary Design  KAU : 2K/4K Heat Exchanger Fabrication & Test