spd mechanics and cooling status of the activity in padova rosario turrisi

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