current status & future challenges for large scale cryogenic systems in scientific laboratories...
TRANSCRIPT
Current Status & Future Challenges for Large Scale Cryogenic Systems in Scientific
Laboratories
J. G. Weisend IIEuropean Spallation Source
November 2014
CryoOps 2014 - J.G. Weisend II 2
Outline
• Introduction
• A Snapshot
• Facilities in Operation• Facilities in Construction, Design or Proposed
• Trends
• Challenges
• Summary
November 2014
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Introduction
Since the first CryoOps Workshop (Jlab 2004) there have been many changes in the use of large scale cryogenics in scientific laboratories. These changes include:
Projects have ended: Tevatron, HERA, PEPII/BaBar
Projects have moved into operations: LHC, KSTAR, SNS, Jlab 12GeV,EAST
Projects have moved closer to completion: ITER, XFEL
Projects have started: ESS, LCLS II, FRIB, CSNS, BERLinPro, JT60-SA, RISP
Overall, the use of cryogenics in scientific labs has grown and diversified with more institutions & countries becoming involved
This is shown by the growth of attendance at this workshop – from roughly 35 in 2004 to close to 100 today
The goal of this talk is to show where we are, predict where we are going and discuss challenges for the future
It’s indicative of the activity of this field that I will start by apologizing to projects that I may inadvertently overlook.
November 2014
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Operating Facilities I
November 2014
Name Type Lab T (K) Refrigeration Capacity Comments
LHC AcceleratorCMSATLAS
CERN 1.94.54.540/8080
8 plants ea 2.4kW @ 1.9K 1.5 kW @4.5 K6 kW @ 4.5K20 kW @ 40 – 80 K20 kW @ 80 K
Each plant has 18 kW capacity eqv. @ 4.5 K
LAr calorimeter
CEBAF/12 GeV Accelerator JLab 2.1 8.4 kW @ 2.1 K
JSNS H2 Moderator J-PARC < 20 6.5 kW @ 15.6 K
SNS AcceleratorH2 Moderator
ORNL 2.120
2.4 kW @ 2.1 K7.5 kW @ ~ 20 K
S-DALINAC Accelerator TU Darmstadt
2.0 120 W @ 2.0 K
FLASH Accelerator DESY 2.0 TESLA tech
KSTAR Tokamak NFRI 4.5 9 kW @ 4.5 K
SST-1 Tokamak IPR 4.5 1.3 kW @ 4.5
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Operating Facilities II
November 2014
Name Type Lab T (K) Refrigeration Capacity Comments
IUAC Accelerator IUAC 4.2 500 W
EAST Tokamak ASIPP 3.5, 4.5 80
1 kW @ 3.5 K200 W @4.5 K13 – 25 kW @ 80 K
RHIC Accelerator BNL 4 24.8 kW @3.8 K plus 55 kW @55K
ISIS LH2 (& Methane)Moderator
RAL 17.8 (TS1)13.5 (TS2)
700 W @ 20 K TS1700 W @ 20 K TS2
Two Target Stations
ATLAS Accelerator ANL 4.7 1.2 kW @ 4.7 K Upgrade to new cryomodules underway
Cyclotron + separatorReA3
Accelerator
Accelerator
NSCL 4.5 1.8 kW@ 4.5 K
900 W @ 4.5 KISAC - II Accelerator TRIUMF 4
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Operating Facilities III
November 2014
Name Type Lab T (K) Refrigeration Capacity Comments
ARIEL (e linac) Accelerator TRIUMF 2.0 288 L/h
ALICE Accelerator STFC Daresbury
2 150 W @ 2 K TESA Tech
BEPC II Accelerator IHEP 4.2 1 kW @ 4.2 K
J-PARC Beam Line J-PARC 4.5 1.5 kW@ 4.5 K
K-500 SCC Accelerator VECC 4.2 S/C cyclotron
CLS Accelerator CLS (Canada) 4.5 284 W @ 4.5 K SRF Cavities
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JSNS LH2 Moderator Systemsimilar or larger systems will be needed for ESS and CSNS
November 2014
From: H. Takasumoto et al. Adv. Cryo Engr. Vol. 59A (2014)
Cryogenics for ATLAS argon calorimeters
Temperature uniformity < 0.3 K
Temperature stability < 0.02 K
Argon purity between 0.1 and 0.3 ppm O2 equivalent
Operation 365/365
Courtesy C. Fabre CERN
ATLAS cryogenic refrigeration
He Main Refrigerator 6 kW @ 4.5 K
He Shield Refrigerator
20 kW 40 - 80 K
Nitrogen Refrigerator 20 kW @ 84 K
Courtesy P. Lebrun CERN
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Layout of KSTAR Cryoplant (9 kW @ 4.5 K)from D.-S. Park et al. Cryogenics 52 (2012)
November 2014
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Future Facilities I
November 2014
Name Type Lab T (K) Refrigeration Capacity
Status (Start of Operation)
ESS Accelerator
LH2 moderatorInstrum. supply
ESS 2.0 40/50164.2
3 kW11 kW25 kW7500 l/month
Construction (2019)
ERL Electron Linac Cornell 1.8540-50
7.5 kW @ 1.8 K6.8 kW @ 5 K144 kW @ 40-80
Proposed: Prototypes under constructionTESLA Tech
XFEL Electron Linac DESY 2.05 – 840-80
2.5 kW @ 2 K4 kW@ 5 -8 K26 kW @ 40-80 K
Construction (2017)TESLA Tech
ITER Tokamak ITER 480
75 kW @4.5 K40 kW @ 80 K
3 PlantsConstruction (2020 -2025)
FAIR Accelerator & separator magnets
FAIR/GSI 450-80
Up to 37 kW@ 4 KUp 30 kW @ 50- 80 K
2 PlantsConstruction ( 2019)
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Future Facilities II
November 2014
Name Type Lab T (K) Refrigeration Capacity
Status (Start of Operation)
LCLS II Accelerator SLAC 2.1 K 4 kW @ 2 K14 kW @ 35 -55 K1.2 kW @ 5 – 8 K
Design (2019)TESLA Tech
RISP Accelerator IBS (Korea) 2 K Design
IFMIF Accelerator TBD Design
SPIRAL2 Accelerator GANIL 4.5 1.3 kW @ 4.5 K eq. Construction
MYRRHA ADS SCK-CEN (Belgium)
2, 40 14.3 kW @4.5 K eq Design
BERLinPro Accelerator HZB (Berlin) 1.8480
175 W@ 1.8 K238 W @4 K1400 W @80 KNB: these are loads
Construction
LHC Hi Lumi Upgrade
Accelerator CERN 1.9, 4.5, 20 K
2 x 18 kW @4.5 K eq1 x 5.8 kW @ 4.5 K eq
Design (20
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Future Facilities III
November 2014
Name Type Lab T (K) Refrigeration Capacity
Status (Start of Operation)
ILC Accelerator TBD 2 5-840-80
95 kW @ 4.5 Eq 5 plants (mountain siting)ProposedTESLA Tech
CSNS LH2 Moderator CSNS 16 – 20 2.2 kW @ 16 K Construction (2018)
FRIB Accelerator FRIB/MSU 2.14.533/55
3.6 k W @ 2.1 K4.5 kW @ 4.5 K20 kW @ 35/55 K
Construction (2019)
W7X Stellerator MPI 4 Construction (2015)
JT-60SA Tokamak Naka Fusion Inst.
3.7, 4.4, 50,80
8 kW @ 4.5 Construction
MESA Accelerator JG Univ. Mainz
1.8 ~ 100 W Design
SIRIUS Accelerator LNLS (Brazil) 4 750 W Construction (2016) (SRF cavities)
The Cryogenic System for LCLS II
A. Klebaner, LCLS-II Director's Review, August 19-21, 2014
L0 L1 L2 L3
Cryogenic Distribution System Scope (excluding cryomodules)
14
Courtesy: A. KlebanerFNAL
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ITER Slides
November 2014
Courtesy E. MonnertITER
For ITER
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Courtesy E. MonnertITER
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Courtesy E. MonnertITER
Trends I
• A broader range of countries and institutions are using large scale cryogenics in science • New & expanding facilities in India, China, Korea, Sweden, Belgium, Brazil • More institutions in Germany (Darmstadt, Mainz, Berlin) and France (GANIL)
and the USA (SLAC)
• A wider range of temperatures and applications is being seen• Dominance of He II in SRF systems
• TESLA Tech• Increased use of LH2 moderators• Increasing use of superconductivity in fusion energy research
• Importance of cryopumping• Use of other cryogens in physics: Xenon (EXO), Argon ( calorimetry & dark
matter searches)
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Trends II
• Increased use of international collaborations to carry out the projects: ITER, ESS, FAIR, ILC, IFMIF
• Use of cryocoolers for closed cycle cooling of large S/C magnets and other instruments : MICE, JPARC and NSCL
• Presence of large pulsed heat loads e.g.: FAIR, ITER
• Very large projects will be online in the next 10 years: ITER, FAIR, LCLS II, ESS
In summary, the application of large scale cryogenics to scientific research is growing and becoming more diverse
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Challenges
• While the field is growing, resources remain tight: projects have to meet their design goals within cost and schedule• Thus, mistakes must be minimized and the proper use of
lessons learned and previous experience is vital
• Information exchange: How do we share information ( i.e. lessons learned, safety, reliability or use of He II ) among all these facilities?• Conferences: ICEC, CEC and of course CryoOps• Professional societies: CSA, BCC, Cryogenics & Superconductivity
Society of Japan, European Cryogenics• Work to increase links between these societies and similar
ones in China, Korea, India, Brazil
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Challenges
• Staffing - How do we develop the talent needed to build and operate this expanding set of facilities?
• Increased university programs: Birmingham, Oxford and Lund• Short Courses (CSA, ICEC, EuroCryo, USPAS, CAS) and webinars• Increased secondment of staff at existing facilities: CERN, Fermilab, Jlab
etc. for training purposes• Note that people are needed at all levels: Scientists, engineers, technicians• Project builders and facility operators are not necessarily the same people
• Reliability: Cryogenic systems have a major impact of facility reliability and availability
• > 98% is possible but hard – How do we meet these requirements?
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Challenges
• Helium Usage and Recovery: Despite local transient perturbations world supply appears adequate for now but we are compelled to minimize losses and recover helium
• LHC losses were ~ 50% per year during startup and now around 25% per year. ESS goal is 10 – 20% in steady state operations. Can we meet this? Can we do better?
• How do we manage in kind contributions and international collaborations?
• A number of approaches exist• Highly dependent on the specifics of the project; thus
probably no single optimum solution• Good will of participants is key
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Challenges
• Energy Usage: In scientific labs, large scale cryogenic systems are significant energy users
• Both ESS and ITER plan to recover waste heat.• How well will this work?• Can we do better?• Involvement of industry ( e.g. heat exchangers)
November 2014
Oil cooler
Compr. motor
Middle temperature
Return
Middle temperature
Supply
Oil vessel
Helium compressor
Helium cooler
He to fine oil removal
He from cold box
High temperature
Return
Middle temperature
Return
25C
25C
27C
27C
27C
39C
85C
85C90C
32C
90C
32C
83C
37C
ESS Cryoplant Energy Recovery
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Summary
• The use of Large Scale Cryogenic Systems in Scientific Labs has grown and diversified (both in scope & geography) over the past 10 years
• These systems are a enabling technology in scientific discovery
• Challenges exist but none are insurmountable
• Good communications exist between the workers in this field and these need to be nurtured and extended
• I look forward to seeing everyone at the next CryoOps workshop in 2016
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Acknowledgements
• I would like to thank all my colleagues who provided slides and information for this talk
• I would also like to thank Dana Arenius and the JLab Team for starting this series of workshops in 2004
November 2014