EVOLUTIONARY REACTORS

15.7. PASSIVE HEAT REMOVAL SYSTEMS

There are some phenomena that occur in evolutionary reactors under accident conditions that assume greater significance compared with presently operating plant. These mainly

Table 15.6. Passive heat removal

Issues

Experimental programmes

Primary circuit

Containment and integral effects

APEX, PACTEL, PASCO, PANDA

Squarer et al. (1988), Venne et al. (1992), Lillington and Kimber (1997), Addabbo et al. (2001), Bacchiani et al. (1994), Kervinen et al. (1990), Erbacher et al. (1995), Wichers et al. (to be published) and Coddington et al. (1993).

relate to passive system performance, including natural circulation and passive injection, and also decay heat removal from large water pools. A major experimental programme to investigate these phenomena was carried out by Westinghouse leading up to the design certification of AP600 (Squarer et al., 1988; Venne et al., 1992) to confirm the conceptual design. Other recent programmes are shown in Table 15.6.

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