0617 放射性廃棄物の自然冷却システムに向けた自然対流除熱の基礎評価(S45-4 原子炉システムおよびその要素技術(4),S45 原子炉システムおよびその要素技術)

概要

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In the natural cooling system for waste storage, it is important to evaluate the flow by natural draft enough to remove the decay heat from the waste. In this study, we carried out the fundamental study of natural convection on vertical cylindrical heater by experiment and numerical simulation. The scale of test facility is about 4m heights with single or a bundle of heaters. Heating value is varied in the range of 33-110W, where Rayleigh number is over 10^<10>. It is found the center of a bundle of heaters has high temperature and the high velocity. Numerical simulation results of the temperature, velocity distribution around the heater and heat transfer agreed well with experimental results.
社団法人日本機械学会の論文
2007-09-07