SPD Mechanics and CoolingStatus of the activity in Padova

Rosario Turrisi

SPD Mechanics and CoolingStatus of the activity in Padova

Rosario Turrisi

Contents: • News about mechanics components • Report on first test of cooling plant

November 16, 2004 2

• CFSS• 16 components produced. • One CFSS has been geometrically

qualified.• Parilene evaporation done.

• CFSS holders• Tooling completed• Four samples machined

• HS springs • Design completed• Tooling production started

• Half Cylinder• Tooling completed• Prototype ready for Dec ‘04

• Half Cone• Design in progress

Mechanics: components production

November 16, 2004 3

Status of cooling components

• Received from Medelec:• Phynox tubes• CuNi capillaries

• Processing started: • Squeezing• Ni+Cu layer on tubes ends• Fittings procurement

November 16, 2004 4

Recent actions

• Realization with M. Pimenta dos Santos (TS-CV-DC CERN) accomplished

• First test performed in October

• Foreseen installation (temporary) in bld. 23 for qualification

November 16, 2004 5

First test of cooling plant

Two-days hands-on course c/o TS-CV-DC• Manual setting of parameters (no automatization)• Use of a two-sectors-like setup • A few sets of parameters have been exploited

• different power dissipations• variation of liquid/vapor pressure

A first contact: some impressions, extensive test in order…

November 16, 2004 6

Test setup

• Final compontens of freon circuitry• Dummy staves: resistors mounted on kapton• Mount on carbon fiber• Thermal contact is the main issue

November 16, 2004 7

Cooling plant

Control panelControl panel

Control software Control software includes some includes some emergencyemergency procedures procedures

November 16, 2004 8

Cooling circuit scheme

compressorcompressor

(in final setup)(in final setup)

November 16, 2004 9

40 W/stave – T vs. flow 140 W/stave – T vs. flow 1

Flow (l/min) 0.81Flow (l/min) 0.81P inp(bar) 3.8P inp(bar) 3.8

Flow (l/min) 0.6Flow (l/min) 0.6P inp(bar) 3.1P inp(bar) 3.1

Flow (l/min) 0.58Flow (l/min) 0.58P inp(bar) 3.0P inp(bar) 3.0

Flow (l/min) 0.54Flow (l/min) 0.54P inp(bar) 2.9P inp(bar) 2.9

Flow (l/min) 0.51Flow (l/min) 0.51P inp(bar) 2.7P inp(bar) 2.7

Flow (l/min) 0.65Flow (l/min) 0.65P inp(bar) 3.2P inp(bar) 3.2

November 16, 2004 10

40 W/stave – T vs. flow 240 W/stave – T vs. flow 2

Flow (l/min) 0.81Flow (l/min) 0.81P inp(bar) 3.8P inp(bar) 3.8

Flow (l/min) 0.6Flow (l/min) 0.6P inp(bar) 3.1P inp(bar) 3.1

Flow (l/min) 0.58Flow (l/min) 0.58P inp(bar) 3.0P inp(bar) 3.0

Flow (l/min) 0.54Flow (l/min) 0.54P inp(bar) 2.9P inp(bar) 2.9

Flow (l/min) 0.51Flow (l/min) 0.51P inp(bar) 2.7P inp(bar) 2.7

Flow (l/min) 0.65Flow (l/min) 0.65P inp(bar) 3.2P inp(bar) 3.2

November 16, 2004 11

20 and 50 W IR shots

November 16, 2004 12

Summary plots

40 40 WW

Flow variation w/ input pressureFlow variation w/ input pressure

Temperature (measured with IR camera) Temperature (measured with IR camera) vs. powervs. power

Good sensitivity, wider range of pressure/flow feasible:Good sensitivity, wider range of pressure/flow feasible:ready for extensive test!ready for extensive test!

20 W20 W(nominal)(nominal)

November 16, 2004 13

Integration

• A mock-up of half detector has been installed in Padova

• It is being upgraded as needed• First tests:

• near-detector cables integration• beam pipe support positioning

both on RB26 side

November 16, 2004 14

Cables layout

• MCM- and bus-extenders have to go around input (output) capillars being twisted ~90o

• Protection of capillars under study

November 16, 2004 15

Beam pipe support

November 16, 2004 16

Summary and plans• Cooling plant up and working

• First test has been encouraging:• ease of startup• seamless power absorption (in test setup)• wide range of parameters tuning• emergency procedures implemented

• Mock-up of SPD implemented• Effective for debugging of integration issues • RB26 side started

• NEXT• Planning of extensive test of cooling plant for tuning on

real conditions• Mock-up upgrade up to first patch panels and RB24 side