Réacteur nucléaire homogène à ébullition

摘要

In the core of a homogeneous boiling liquid nuclear reactor vortex flow of the active liquid separates vapour into a central funnel from which the vapour is extracted. Vortex flow is produced by tangential injection of condensed vapour with or without extra liquid taken direct from the reactor; the extra fluid may be taken through an orifice centred on and larger than the funnel, with the use of guide surfaces and scroll outlet chambers to keep liquid and vapour separate. To improve stability and centring of the funnel the reactor may have a scroll chamber for injection or may have a spiral cross-section over all or part of its height. The core vessel may be spherical.