本文对不同饱和蒸汽温度下R11在水平Thermoexcel-C管的管外凝结换热性能进行了实验研究.实验结果表明:随着饱和蒸汽温度的提高,C管的凝结换热系数下降.C管凝结换热强化的主要机理在于孤立三维齿结构增大了表面张力减薄凝结表面液膜厚度的作用,而C管凝液淹没区小于相同肋间距的低肋管,且在淹没区内的凝结换热大于低肋管.
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