本论文对这种新型强化传热管的起源、结构尺寸和加工方法等进行了深入细致的考察，分析了这种管型所特有的结构对换热性能的影响。然后根据管型生产和实验研究的要求，设计和搭建了专用的强化传热管单管测试实验台，并编制了相关的测试软件和数据处理程序。通过实验方法测量和计算不同管型的传热系数，归纳得到相应的换热关系方程式，并拟合出换热性能关系曲线。

作者对七种用于空调领域冷冻设备中常见规格的表面增强型蒸发强化传热管和一种表面增强型冷凝强化传热管进行了实验研究，发现对使用R134a环保制冷工质，在低热流密度的条件下，表面增强型强化传热管具有十分优异的强化效果，在实验的换热工况下，蒸发强化管管外换热系数是普通低翅蒸发强化管的1.3～1.9倍，冷凝强化管的管外换热系数是普通低翅冷凝强化管的2.2～3.0倍。

对不同几何参数蒸发强化管的实验研究表明，在热流密度低于一定临界值时，带三次齿的管型换热性能比带二次齿的管型优异，超过此临界值以后则带二次齿的管型换热性能更佳。对无三次齿的管型来说，二次齿的齿数和齿深对换热性能有着显著的影响。

The origin, the form and the machining method of the tube are described in the thesis in detail. According to the demand of study, the author designed and completed an experiment system to carry out the tasks. Whereupon, the heat transfer formula and performance curve of different kinds of heat exchanger tubes could be acquired conveniently.

The author studied seven sorts of typical boiling surface enhanced heat exchanger tubes and one condensing tube. When using R134a as refrigerant and transferring heat with low heat flux, the performance of boiling tubes is from 1.3 to 1.9 times better than that of ordinary low-finned tubes and condensing tubes, from 2.2 to 3.0 times in the experiment.

The experiments to several kinds of boiling enhanced exchanger tubes show that the heat-transferring performance of the tubes with three-dimensional fin is much better than that of two-dimensional fin when the heat flux is under a critical value and vice versa. Still does the author find that to the tubes with two-dimensional fin the number of fin and the depth of the gap affect the their performance remarkably.