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.