H317 DESIGN OF ONE-THROUGH STEAM GENERATOR OF MARINE REACTOR MRX TO COUNTER FLOW INSTABILITY(Heat transfer with phase change)

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概要

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• The marine reactor MRX, an integral typed PWR with 100MWt adopts one-through steam generators with coiling tubes. The cold feed water enters the steam generator and the super heated steam flows out. To avoid occurrence of flow instability in the steam generator due to a density wave oscillation, it is necessary to increase of flow resistance at the feed water inlet. The magnitude of flow resistance to stabilize the flow is determined by a simple linear analysis using a D-division method, of which accuracy is clarified by comparison with SRI's experiment. The external force due to heaving, one of ship motions will affect the flow behavior. Analysis by a modified RELAP5 capable of simulating the ship motions reveals that the effect of heaving becomes especially greater when the state of flow approaches both the conditions of density wave oscillation occurrence and resonance of flow oscillation with heaving.

• 一般社団法人日本機械学会の論文
• 2000-10-01

著者

• Ishida Toshihisa

  Japan Atomic Energy Research Institut

• Adachi Masaki

  Ship Research Institute

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