A PROPOSED MODEL OF BUBBLE GROWTH DURING FAST TRANSIENTS IN THE KEWB REACTOR
A PROPOSED MODEL OF BUBBLE GROWTH DURING FAST TRANSIENTS IN THE KEWB REACTOR
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KEWB 反应器中快速瞬变过程中气泡生长的拟议模型
DOI：
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发表时间：
1959
期刊：
影响因子：
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通讯作者：
D. Gamble
中科院分区：
文献类型：
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作者：
D. Gamble
实验证据表明，KEWB反应堆在短周期瞬态关闭的主要机制是由辐射分解气体演化产生的空隙。产生所观察到的反应性变化所需的气泡的生长，在热力学的基础上似乎是无法解释的。由于大量能量的耗散发生在小体积内，因此提出了一种涉及裂变碎片的气泡形成机制。在基于模型的预测和实验观测之间观察到极好的定性相关性。(W.D.M.)
Experimental evidence indicates that the dominant shutdown mechanism operating in the KEWB Reactor during short-period transients is void production from radiolytic gas evolution. Growth of bubbles required to produce the observed reactivity changes appears inexplainable on the basis of thermodynamics. Since the dissipation of large amounts of energy occurs in a small volume, a mechanism is proposed for the bubble formation which involves fission fragments. Excellent qualitative correlation is observed between predictions based on the model and experimental observations. (W.D.M.)