A heat exchanger design for the separated window target of the EADF
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Data
2000
Autori
Aragonese, Cosimo
Buono, Stefano
Fotia, Giorgio
Maciocco, Luca
Moreau, Vincent
Sorrentino, Luca
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Abstract
The spallation target of the Energy Amplifier Demonstration Facility (EADF)
[1] is cooled by a liquid lead-bismuth eutectic (LBE), while the secondary
coolant is a diathermic oil. The reasons for these choices have been
extensively discussed in [2] and [3].
Here we present the design and the optimisation of a heat exchanger using
these fluids, whose additional requirements are the need of fitting into the top
of the annular downcomer section of the target and the minimisation of the
pressure losses on the LBE side, allowing the use of natural convection for
the circulation of the primary fluid.
Heat exchanger working temperatures are between 250 and 180°C in the
LBE side, and between 150 and 190°C in the oil side (cold fluid), while the
power to be removed is up to 3 MW.
We selected a bayonet-type heat exchanger, as suggested in [4] for the
primary loop of the EADF vessel, which seems to be the most appropriate
choice to satisfy all the requirements.
Descrizione
Keywords
energy amplifier demonstration facility (EADF) , diathermic oil , lead-bismuth eutectic (LBE) , bayonet-type heat exchanger