Local cryogenics for SIS100

Polish in kind contribution to the FAIR cryogenic system

Maciej Chorowski

on behalf of WrUT and Kriosystem team

18 November 2014 , FAIR

12th Machine Advisory Committee

Wrocław University of Technology

Faculty of Mechanical and Power Engineering

Content

1. Scope of Wroclaw University of Technology in-kind as stipulated in

FAIR Council Resolution from 12. December 2011

2. Scope of Wroclaw University of Technology contract with

Jagiellonian University signed on the 4. December 2013

3. Progress in design and construction of Test String elements, to be

reinstalled in Sector 5.

4. Conclusions.

Local cryogenic system of SIS100

Items in the tunnel in Sects. 1,3 and 5

Feed in line

Feed box

Connection Box Arc end upnstream

Connection Box Arc end downstream

Bypass line 9 m section

Bypass line 12 m sections

Connection boxes

PSP Code: 2.8.12.6.3

PSP Code: 2.8.12.1

PSP Code: 2.8.12.11

PSP Code: 2.8.12.5.2.1

PSP Code: 2.8.12.5.1

PSP Code: 2.8.12.6.2

PSP Code: 2.8.12.6.1

Bypass line 12 m section

to Feed-in-Box

PSP Code: 2.8.12.5.2.2

Local cryogenic system of SIS100

Items in the tunnel in Sects. 2,4 and 6

End box

Connection Box Arc end upnstream

Connection Box Arc end downstream

Bypass line 9 m section

Bypass line 12 m sections

Connection boxes

PSP Code: 2.8.12.3.1

PSP Code: 2.8.12.6.3

Bypass line 12 m section

to End-Box

PSP Code: 2.8.12.5.2.3

PSP Code: 2.8.12.6.1

PSP Code: 2.8.12.6.2

PSP Code: 2.8.12.5.2.1

PSP Code: 2.8.12.5.1

From resolution taken at the 5th Meeting

of the FAIR Council , 12. Dec. 2011

2.8.12.5 Cryogenic bypass line

2.8.12.6 Connecting Cryostat

2.8.12.6 Connecting Cryostat 2.8.12.3 Endboxes

2.8.12.12.1/2 Feed in cryostat

2.8.12.1/2 Feedbox 2.8.12.10 Current Lead boxes

2.4.12.2 Feedbox (without end-box integrated) for dipole stages 2.4.12.3 Feedboxes for Multiplet stages

2.4.12.4 Cryogenic transfer line in sections

2.4.12.1 Helium distribution box

Not shown:

WrUT – U. Jagiellonian contract - signed

4. December 2013

View – A Sectors 2, 4, 6

View – B Sectors 1, 3

View – C Sector 5

The elements of the test

string will be reinstalled in

sector 5.

WrUT – U. Jagiellonian contract - signed

4. December 2013, first elements in production

Connection Box Arc end upnstream PSP Code: 2.8.12.6.1

Bypass line 12 m section

to Feed-in-Box

PSP Code: 2.8.12.5.2.2

Magnet End Cap

Connection to Feed in

Line

SIS 100 Current Lead Box – in Resolution, not in WrUT - Jagiellonian contract

SIS 100 Feed Box - in Resolution, not in WrUT - Jagiellonian contract

Supersonducting link –neither in Resolution nor in WrUT - Jagiellonian contract

Feed-In Line - neither in Resolution nor in Jagiellonian contract

Bypass-line, Feed-In Cryostat, Connection Box – design ready, in production

WrUT – U. Jagiellonian contract - signed

4. December 2013, first elements in production

Bypass-line, Feed-In Cryostat, Connection Box –

design ready, in production

Vacuum external

envelope Radiation shield

Process pipes and busbars

Cross section of the BPL 9m Vacuum external envelope

Radiation shield

He supply VC

He supply

magnets

He return magnets

+ VC

He supply

shield

He return

shield

4 busbars pairs

Weak fixed support of the

process pipes

Sliding support of the

process pipes

Support of the thermal

shield

General view and cross section of the vacuum barrier and strong fixed support

Bypass-line, Feed-In Cryostat, Connection Box –

design ready, in production

Design verification – full 3D modelling

Geometrical model

Exemplary results

Design verification – thermal load

design

Exemplary results

Design verification – stress MPa

Exemplary results

Design verification – displacement of

process pipes - ready

Exemplary results

Heat transfer to process pipes -

BPL Cross section

Line B, He return

108x3, 4.3K

10 Layers of MLI

Line A2, He supply VC

32x2.0, 4.5K

10 Layers of MLI

Line A1, He supply mag.

54x2.0, 4.5K

10 Layers of MLI

Line C, He supply shield

42.4x2.0, 50K

10 Layers of MLI

Line D, He return shield,

42.4x2.0, 80K

No MLI !!!

Thermal shield, Al.

350x5, 80K

30 Layers of MLI

Thermal shield

supports (hangers)

Process pipes

sliding support

Bus bars

Vacuum vessel

427x5

Location of the process pipe supports

Fixed supports

Sliding supports +

thermal shield hangers

Fixed supports heat transfer

Fixed supports heat transfer

Heat conduction path to Line D 80K

Fixed supports heat transfer

Heat conduction path to Line D 80K

Heat conduction path to 4K Lines Heat conduction path to 4K Lines

Heat conduction path to Line D 80K Heat conduction path to Line D 80K

Fixed supports heat transfer – boundary

conditions

Fixed supports heat transfer –

temperature distribution

Fixed supports heat transfer – heat flux

distribution

Fixed supports heat transfer – summary

Line Heat flow, W

A1, 54x2mm – 4,5 K 0,637

A2, 32x2mm – 4,5 K 0,522

B, 108x3mm – 4,3 K 1,01

C, 42,4x2mm – 50 K 0,106

D, 42,4x2mm – 80 K 6,8

Lower right corner electrical feedthrough – 4,5K 4,31∙10-2

Lower right corner electrical feedthrough – 4,5K 4,51∙10-2

Upper right corner electrical feedthrough – 4,5K 8,98∙10-2

Upper right corner electrical feedthrough – 4,5K 7,73∙10-2

Upper left corner electrical feedthrough – 4,5K 6,09∙10-2

Upper left corner electrical feedthrough – 4,5K 3,72∙10-2

Lower left corner electrical feedthrough – 4,5K 3,62∙10-2

Lower left corner electrical feedthrough – 4,5K 2,06∙10-2

Sliding supports heat transfer –

temperature distribution

Sliding supports heat transfer – heat flux

distribution

Sliding supports heat transfer – summary

Line Heat flow, W

A1, 54x2mm – 4,5 K 0,54

A2, 32x2mm – 4,5 K 0,54

B, 108x3mm – 4,3 K 1,05

C, 42,4x2mm – 50 K - 0,17

D, 42,4x2mm – 80 K - 1,05

Summary of the heat transfer to the BPL

process lines

Comments:

For 4K lines, Q_MLI=0.1 W/m2

For 80K (Thermal Shield), Q_MLI= 1 W/m2

Pipe length: 7.05

For Line A1, A2, C, D: Q_tot=2*Q_slid_supp+2*Q_fix_supp + Q_MLI

Q_MLI for D Line is calculated as insulation heat transfer to the thermal shield

For Bus Bar: Q_tot = Q_fix_supp + Q_MLI

For Line B: Q_tot=2*Q_slid_supp+2*Q_fix_supp + Q_MLI+ 4* Q_tot(Bas Bar)

Line D A Q_MLI Q_slid_supp Q_fix_supp Q_tot qL Criteria

mm m2 W W W W W/m W/m

A1, 4.5K 54 1,20 0,12 0,54 0,64 2,48 0,35 0,5

A2, 4.5K 32 0,71 0,07 0,54 0,52 2,19 0,31 0,5

B, 4.3K 108 2,39 0,24 1,05 1,01 4.82 0,68 0,5

C, 50K 42,4 0,94 0,09 -0,17 0,11 -0,02 0,00 0,5

D, 80K 42,4 0,94 7,75 -0,14 6,8 21,07 2,99 2,5

Bus-bar 30 0,66 0,07 0,00 0,05 0,12 0,02 0,5

In case of the Line B and D, the heat

transfer to those pipes per their length

(qL) are higher than the specified value

(Criteria). Nevertheless, it should be

pointed out that the results presented

in the Table 1 are related to the

relatively short and complex BPL

modules. For the whole By-pass line

length, the qL to the corresponding

process line is expected to be lower

than criteria values.

28

G10, G11 high dielectric constants (ε~5)

Creates parasitic capacity

Other material possible? PEEK (ε~3),

Polyamide

Two SS half shells need to be electrically

insulated from each other

Welding ?, clamping ?

Bus bar – Eddy currents and cross talkin

analysis - ready

Eddy Current Loss in Outer Shell - results

Busbars support - prototyping

G 10 support

Superconducting cable External support

Internal structure of busbars support

Preliminary Design Review of BPL B50, BPL P50,

V B50 elements and their integration into test rig

From the: Minutes of the PDR meeting concerning design of the test rig

composed of BPL B50, BPL P50 and V B50 elements:

Date and place of PRD meeting

2014-10-13, time: 9:15 am - 3:00 pm, Wrocław University of Technology,

Participants: GSI (Peter Spiller, Thomas Eisel, Holger Kollmus, Jorge

Ceballos), WrUT (Maciej Chorowski, Marian Ciszek, Artur Iluk, Jarosław

Poliński, Kazimierz Malcher, Stanisław Trojanowski, Paweł Duda, Agnieszka

Pelc), Kriosystem Ltd (Piotr Grzegory).

Conclusions:

The meeting participants have unanimously approved the Preliminary Design

of the following elements BPL B50, BPL P50, V B50 elements and their

integration into test rig.

Extension of in-kind resolution as

proposed by GSI and WrUT

WrUT proposal

Local cryogenic system of SIS100

Items at the niches

Feed in line

Feed box

Feed in line box

Superconducting

Cold Links

Distrybution box

Current lead box

Transfer line

PSP Code: 2.8.12.1

PSP Code: 2.8.12.11

PSP Code: 2.8.12.5.2.2

PSP Code: 2.8.12.10

PSP Code: 2.8.12.9

No Local Cryogenics Item

No Local Cryogenics Item

Conclusions

1. The design process of SIS 100 local cryogenics elements is in progress.

2. The production of the elements foreseen to be first used in the Test String

has started. The elements will be ready for installation in April 2015

3. WrUt is ready to extent the in-kind contribution according to the proposal

from GSI

Thanks to: Eugeniusz Rusinski, Artur Iluk, Kazimierz Malcher, Jaroslaw

Polinski, Pawel Duda, Piotr Grzegory, Marian Ciszek, Stanislaw Trojanowski

and others