Thermal-hydraulic characterization of high heat flux components for fusion reactors

Activity description
Experimental facility
Applications

Activity responsible: Dr. Andrea MARIANI
Address: ENEA C.R. Casaccia, Energy Department, Institute of Thermal Fluid Dynamics, Via Anguillarese 301 (S.P. 092), 00060 S. M. di Galeria RM, Italy
Phone: +39 06 3048.3998 Fax: +39 06 3048.3026

Email: mariani_a@casaccia.enea.it


Activity description

The experimental program carried out on the STAF loop is devoted to study the influence of the geometrical and thermal-hydraulic parameter on the critical heat flux in subcooled flow boiling, in the case of high heat flux and high velocity and subcooling of the refrigerant (water).

The STAF loop can be equipped with a visualized test section to obtain images of the phenomenon.

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Experimental facility

staf-imp.jpg (39655 byte)

The test loop (STAF) is made of stainless steel, and the fluid refrigerant is deionized and demineralized water.

The main characteristic of the loop are:

Flow rate: up to 2000 l/h (water)

Pressure: up to 7 MPa (test section inlet)

Inlet temperature: up to 75 C

Dc power: up to 50 V and 1800 A.

Test section:

Vertical cylindrical pipe (AISI 316), diameter ranging from 0.25 to 8.0 mm and heated length ranging from 10 mm to 150 mm, used for tests of critical heat flux in tube.

Vertical annular channel with square section (7x7 mm) with two faces made in plexiglass with cylindrical heated rod at the centre, heated length 100 mm (used for visualized critical heat flux test)

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Applications

Cooling of the fusion reactor component subjected to high heat fluxes
Cooling of particular electronic components

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