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SPD Mechanics and Cooling Status of the activity in Padova Rosario Turrisi. SPD Mechanics and Cooling Status of the activity in Padova Rosario Turrisi. Contents: News about mechanics components Report on first test of cooling plant. Mechanics: components production. CFSS
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SPD Mechanics and CoolingStatus of the activity in PadovaRosario Turrisi SPD Mechanics and CoolingStatus of the activity in PadovaRosario Turrisi • Contents: • News about mechanics components • Report on first test of cooling plant
Mechanics: components production • 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
Status of cooling components • Received from Medelec: • Phynox tubes • CuNi capillaries • Processing started: • Squeezing • Ni+Cu layer on tubes ends • Fittings procurement
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
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…
Test setup • Final compontens of freon circuitry • Dummy staves: resistors mounted on kapton • Mount on carbon fiber • Thermal contact is the main issue
Cooling plant Control panel Control software includes some emergency procedures
Cooling circuit scheme compressor (in final setup)
40 W/stave – T vs. flow 1 40 W/stave – T vs. flow 1 Flow (l/min) 0.51 P inp(bar) 2.7 Flow (l/min) 0.54 P inp(bar) 2.9 Flow (l/min) 0.58 P inp(bar) 3.0 Flow (l/min) 0.6 P inp(bar) 3.1 Flow (l/min) 0.81 P inp(bar) 3.8 Flow (l/min) 0.65 P inp(bar) 3.2
40 W/stave – T vs. flow 2 40 W/stave – T vs. flow 2 Flow (l/min) 0.51 P inp(bar) 2.7 Flow (l/min) 0.54 P inp(bar) 2.9 Flow (l/min) 0.58 P inp(bar) 3.0 Flow (l/min) 0.6 P inp(bar) 3.1 Flow (l/min) 0.81 P inp(bar) 3.8 Flow (l/min) 0.65 P inp(bar) 3.2
Summary plots Temperature (measured with IR camera) vs. power 20 W (nominal) Flow variation w/ input pressure 40 W Good sensitivity, wider range of pressure/flow feasible: ready for extensive test!
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
Cables layout • MCM- and bus-extenders have to go around input (output) capillars being twisted ~90o • Protection of capillars under study
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