Title: Experimental researches on nucleation restrains in flow boiling
Abstract: An experimental measurement was conducted with water flow boiling in an upward channel to investigate the nucleation restrain and boiling state.The non-dimensional parameter for nucleation restrains(rmax/rmin)sup can be defined by the ratio of cavity maximum radius and minimum radius,which is used to describe the flow boiling state.When the maximum radius approaches to the minimum,the active nucleation sites density decreases and the nucleation boiling is restrained.The flow boiling has three states as follows:(rmax/rmin)sup40 for counter flow boiling state,40≤(rmax/rmin)sup≤120 for uncertain state,(rmax/rmin)sup120 for nucleation boiling state.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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