日本冷凍空調学会論文集
Online ISSN : 2185-789X
Print ISSN : 1344-4905
ISSN-L : 1344-4905
論文
冷媒R1234ze(E)およびR32 の水平扁平多孔管内 沸騰・蒸発熱伝達および圧力損失
地下 大輔小宮 佑太近藤 智恵子小山 繁
著者情報
ジャーナル フリー

2014 年 31 巻 2 号 p. 57-65

詳細
抄録

In this study, the flow boiling heat transfer and pressure drop characteristics of R1234ze(E) and R32 in a horizontal multi-port tube with rectangular mini-channels of 1.13 mm in mean hydraulic diameter are investigated experimentally. The heat transfer and pressure drop characteristics are measured for the boiling flow in the mass velocity range of 100 to 400 kg/(m2 s) and heat flux range of 5 to 20 kW/m2. The pressure drop characteristics are also measured for adiabatic two-phase flow. The effects of mass velocity, vapor quality and heat flux on the boiling heat transfer characteristics are clarified. The measured frictional pressure drop and boiling heat transfer characteristics of R1234ze(E) and R32 are compared with previous correlations.

著者関連情報
© 2014 公益社団法人 日本冷凍空調学会
前の記事 次の記事
feedback
Top