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NCSX radial build

NCSX Project Meeting

December 18, 2002

Update Feb 7, 2003

1. Modular coil build assumptions

2. Vessel build assumptions

3. FW/internal build assumptions

4. Unknowns

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Modular coil build assumptions Mod coils are being updated (blue numbers are current data) Current density should improve based on preliminary data

Dimension CDR (M45)

PDR (M50)

W1- Width of winding incl. ground wrap

4.125 in 4.35 in

W2 - Winding - center to bore

2.5 in 2.325 in

C1- Width across outside of clamp (w/o rib)

4.685 in 5.1 in

C2 - Outside of clamp - center to bore

2.75 in 2.70 in

CR -sqrt((C1/2)2+C22) 3.612 in 3.714 in

Tolerance on CM(1.5 mm winding+ 1mm clamp)

+/- 0.1 in +/-0.1 in

CRM- Max winding center to coil bore, with clamps

3.712 in

(9.43 cm)

3.814 in

(9.69 cm)

4.125

.4451.570

.785

.725

.531 .471

2.391

4.782

.750

4.685 - Clamp

.250

2.500

6.3285.250

Conductor

Conductor + InsulationWinding Pack

Conductor + Insulation

Conductor

Winding Pack

GroundWrap

.030 thk

ChillerPlate

.040 thk

.250 DiaTube

.375 DiaStud

.375 DiaBolt

Web

Tubing onChiller Plate

Spacer

Clamp

CRM

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VV build assumptions Vessel tolerance different on inboard and outboard Coils must slide over vessel during assembly Port stub length affects outboard, top, bottom

Tolerance zone outboard: ~ 1.875 inches

Tolerance zone inboard: ~ 1.25 inch

Thickness 0.375 in 0.375 in0.95 cm 0.95 cm

cooling lines / insulation / port stubs (OB) 1.000 in 1.500 in

2.54 cm 3.81 cmProfile tolerance (+/-) 0.188 in 0.500 in

0.48 cm 1.27 cm

VV - Vacuum vessel envelope 1.750 in 2.875 in4.45 cm 7.30 cm

Vacuum Vessel envelope allocation

Inboard Outboard

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VV to Plasma build Gap needed for in-vessel components and scrape-off

layer (SOL) In-vessel components include trim coils, FW /divertor

panels, magnetic diagnostics, RF antennas, etc. CDR design allowed nominal space of 2.8 in (71 mm)

at trim coil location Space could be tighter away from trim coils RF antennas are special case, require more space

8.0”204 mm

Winding Pack Center

25 mm

35 mm

28 mm Gap

M = 6 Coils

M = 5 Coils

Vessel / PFC’s

PLASMA

PFC’s

Vacuum Vessel

20 mm Gap

10 mm

5 mm

11 mm

.75(19 mm)

4.69 - Clamp .25

2.5(64 mm)

(119 mm)(6 mm)

2.75(70 mm)

Trim coils 1.375 in3.49 cm

mag loops 0.375 in0.95 cm

FW envelope 1.000 in2.54 cm

IVC - In-vessel components 2.750 in6.99 cm

In- vessel components allocation

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Net build assumptions

8.0”204 mm

Winding Pack Center

25 mm

35 mm

28 mm Gap

M = 6 Coils

M = 5 Coils

Vessel / PFC’s

PLASMA

PFC’s

Vacuum Vessel

20 mm Gap

10 mm

5 mm

11 mm

.75(19 mm)

4.69 - Clamp .25

2.5(64 mm)

(119 mm)(6 mm)

2.75(70 mm)

Dimension Inboard Outboard, top,

bottomCRM- Max winding center to coil bore, with clamps

3.25 in

8.26 cm

3.25 in

8.26 cm

Gap 1, includes space for assembly, thermal expansion

1 in min.

2.54 cm

1 in min.

2.54 cm

VV envelope, includes tubing, VV shell, tolerance,

thermal insulation

1.750 in

3.18 cm

2.875 in

7.30 cm

IVC - In-vessel components, including trim coils, FW, etc.

2.750 in

7 cm

2.750 in

7 cm

SOL – Scrape off layer 2 cm min? 2 cm min?

Total, w/o SOL 8.75 in

22.2 cm

9.875 in

25.1 cm

Total, w/o SOL or Trim coils 7.37 in

18.7 cm

CRM

Gap1

VV

IVC

SOL

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Unknowns What is actual assembly clearance required? What and where are RF antennas? What will be radial and lateral build of new M50 coils? Things we have not thought of

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Notes:• xsec changed from 4x5 to 4.35x4.65-in• clamp space can overlap, assuming staggered clamps are ok• hard to see possible interference•healing wiggles make coil very ugly

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4.35(was 4.0)

4.65(was 5.0)

ProE clamp space dimensions