Passive safety is a key issue for public acceptance of fusion power. Several studies in the European Safety and Environmental Assessment of Fusion Power (SEAFP) program intend to assess fusion safety and also to evaluate the feedback of the safety analysis on the design. In this paper, a novel passive cooling system for the SEAFP project in case of accidental situations is proposed, based upon an innovative design of the cryostat An accidental scenario has been studied, referred to as "total LOCA". There has been the evidence that the presence of the cryostat makes the reactor system practically adiabatic: this could lead to an increase of certain reactor component temperatures beyond the required reference levels, if no mitigating action is undertaken for a long while the accident. A new cryostat design is proposed to solve this problem. The results confirm that the proposed design solution can ensure the passive removal of the decay heat in the SEAFP fusion reactor, even in the "envelope" case of a total LOCA.

Post-accidental passive cooling capability of fusion power reactors / Andritsos, F.; Zucchetti, Massimo. - STAMPA. - (1998), pp. 611-622. (Intervento presentato al convegno XVI CONGRESSO NAZIONALE SULLA TRASMISSIONE DEL CALORE 16th UIT National Heat Transfer Conference tenutosi a Siena, Italy nel June 1998).

Post-accidental passive cooling capability of fusion power reactors

ZUCCHETTI, MASSIMO
1998

Abstract

Passive safety is a key issue for public acceptance of fusion power. Several studies in the European Safety and Environmental Assessment of Fusion Power (SEAFP) program intend to assess fusion safety and also to evaluate the feedback of the safety analysis on the design. In this paper, a novel passive cooling system for the SEAFP project in case of accidental situations is proposed, based upon an innovative design of the cryostat An accidental scenario has been studied, referred to as "total LOCA". There has been the evidence that the presence of the cryostat makes the reactor system practically adiabatic: this could lead to an increase of certain reactor component temperatures beyond the required reference levels, if no mitigating action is undertaken for a long while the accident. A new cryostat design is proposed to solve this problem. The results confirm that the proposed design solution can ensure the passive removal of the decay heat in the SEAFP fusion reactor, even in the "envelope" case of a total LOCA.
1998
9788864930176
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2659066
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