金属丝缠绕光管强化泡核沸腾的实验研究

Experimental Study of Nucleate Boiling Enhanced by Screw-metal-wire-wrapped Tube

实验表明,螺旋金属丝緾绕的水平光管能显著强化以氟里昂R-113、R-11和酒精为工质的池沸腾传热,在氟里昂一类的池沸腾传热过程中无“温度过头”,优于GAWA-T管,基于无因次分析,建立一个关联式并把实验数据在25％以内的误差关联起来。

The experiments demonstrate that the horizontal plain tube wrapped with screw metal wire remarkably enhaaces heat transfer in nucleate pool boiling of R-113,R-11 and ethanal,has no 'Temperature Overshoot' in Freon pool boiling and outperforms the GAWA-T tube.On the basis of dimensional analysis a correlation has been obtained.Compared with the experimental data,the correlation has a mean absolute error of 25%.