F211 二酸化炭素の水平細管内二相流動(次世代冷凍空調技術に関わる伝熱過程I)

概要

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Increasing attention has been given to carbon dioxide as an alternative refrigerant in refrigeration and air conditioning from a framework of global environment, such as ozone depletion and global warming. Because of this, the purpose of this study is to investigate characteristic of flow boiling carbon dioxide, such as flow patterns. This paper describes the flow patterns observed in horizontal mini-channels ranging from 0.51 to 3.0mm in diameter, together with flow pattern maps of flow boiling carbon dioxide at wide range pressure. The observed flow patterns are mainly classified into bubbly, slug, slug-annular and annular flows, similarly to conventionals pipes.
一般社団法人日本機械学会の論文
2009-11-06