限界熱流束に対する流動様式の影響

概要

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Critical Heat Flux(CHF) is one of the most important factors in the designing of the water tube in boiling two-phase flow equipment, such as a conventional boiler, a nuclear power plant and so on. However, the CHF has quite different mechanism on each flow pattern, i.e. bubbly flow, slug flow and annular flow. In this investigation, in order to understand the influence of the flow pattern on CHF, the axial stepwise heating tube along the axial direction was used. As the experimental results, the location of the temperature excursion was correlated with the flow regime, and the influence of the mass flux on the heat flux characteristic at a heating section was also reported. The results have suggested the conditions where the CHF induced by the large bubble could be able to occur.
日本混相流学会の論文