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ICARUS
Cold VesselsThermal insulation
Project progress report
The Cold Vessels and thermal insulation of ICARUS, which is running (successfully) to day in LNGS, will not be re-used at CERN for several (good) reasons.These fundamental parts of the detector are designed ex-novo by external specialists.
Mechanic structures: A. Castellani Thermal Insulation: GTT
The good integration of their projects and the technical performances control is crucial and is our job.
Typical vessel transversal section (1-1).
Fare clic sull'icona per inserire un'immagine
Wall and corner aluminium alloy extruded shapes.
Fare clic sull'icona per inserire un'immagine
Corner assembly.
Fare clic sull'icona per inserire un'immagine
Top wall.
Fare clic sull'icona per inserire un'immagine
Removable end cap.
Fare clic sull'icona per inserire un'immagine
CO
NF
IDE
NT
IAL
Stainless steel corrugated membrane304 L – 1.2 mm Primary Barrier
Plywood
Reinforced polyurethane foam
Composite materialSecondary Barrier
Concrete wall covered with a moisture barrier
Mastic
Plywood
• Standard components• Industrially pre-fabricated by independent suppliers
One block
Pre-fabricated panels
Pre-fabricated membrane
sheets
Insulation in TPS(1) area Insulation above 5m height(1) Thermal Protection System
Containment Detailed Description
CO
NF
IDE
NT
IAL
Plywood boards
1m wide by 3m longTypical range of thicknesses : between 250 to 350mm
Insulation layer
Secondary barrier
Metallic component onto which the primary barrier is welded
Plywood boards
Flat panel with TPS*
Flat panel without TPS*
*Thermal Protection System
Modular Insulating Panels
CO
NF
IDE
NT
IAL
Tight Secondary Barrier
Tight Primary Barrier
Continuity of the Secondary Barrier by bonding
CONCRETE
Closed primary space
Closed secondary space
Design Concept at TPS Level
CO
NF
IDE
NT
IAL
CON
CRET
E
Liquid tight Primary Barrier
Primary space(Only one space)
Design Concept Above TPS level
ICARUS
ConclusionLast Monday we met at CERN representative of both Parts and we organised together with them the future work, based on the present results.The principal open problem was the mechanical project of the supporting system of vessels into the thermal insulation, ensuring the requested rigidity, but reducing thermal bridges.Another important option was the definition of the thickness of the insulating material vs the requested performances (10 W/m2); such a value will be guaranteed with 60 cm thickness on the bottom and 40 cm elsewhere.
