三维肋管的使用结果表明：它具有良好的强化传热效果和优良的热力性能。
Compared the 3-d IFT with smooth tube, the result shows that it has perfect heat transfer enhancement effect and good thermodynamic performance.
本文利用自主设计的大空间凝结换热实验台，对水平光管和三维肋管管外高不凝性气体含量水蒸气的凝结换热性能进行了实验研究；
In the past decades, little efforts has been done on the investigation of condensation of steam in the presence of high content non-condensable gas due to its complication.
采用三维内肋管强化传热技术，可以达到降低水套炉的金属耗量和提高热效率的目的。
The 3-D inner gilled tube strengthening heat transfer technology can be used to reduce the metal consumption and increase the thermal efficiency.
本文所研究的三维内肋管就是应用于各种换热器中单相强迫对流换热的新型强化传热管。
In our studies, three-dimensional internally finned tube (3-d IFT) is a type of new heat transfer enhanced tubes which can be used to enhance single-phase forced convective heat transfer inside tube.
本文研究还首次发现在层流区，随着雷诺数的增加，肋叉排三维内肋管和光管的换热特性曲线会出现一个交点即换热有效折点。
In this paper, increase with Reynolds number, we first find that 3-d IFT with staggered arrangement fins and smooth tube's heat transfer characteristic curve will have a point of intersection.
本文研究还首次发现在层流区，随着雷诺数的增加，肋叉排三维内肋管和光管的换热特性曲线会出现一个交点即换热有效折点。
In this paper, increase with Reynolds number, we first find that 3-d IFT with staggered arrangement fins and smooth tube's heat transfer characteristic curve will have a point of intersection.
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