振荡流热管自激强化传热的可行性分析

围绕自激振荡流热管的工作特性，联系目前国内外纳米流体及非均匀截面结构在强化传热研究方面的最新进展，分析了在自激振荡流热管内的复杂相变换热条件下，通过采用纳米流体工质与非均匀管截面以实现振荡流热管自激强化传热的可行性，并提出了纳米流体的浓度、相容性、充液率以及管截面结构等需要解决的关键性技术问题。为下一步有针对性的强化传热实验研究和新型自激振荡流热管换热器的设计与开发提供了必要的理论依据。

Feasibility Analysis of Self-excited Intensified Heat Transfer of an Oscillating-flow Heat Pipe

In connection with the operating features of self-excited oscillating-flow heat pipes and recent advances of nano-fluid and non-uniform section structures in the study of intensified heat transfer both at home and abroad analyzed is the feasibility of realizing self-excited intensified heat transfer by an oscillating-flow heat pipe.The intensified heat transfer is attained through the use of nano-fluid working media and a non-uniform pipe section under the condition of complicated phase-transformation heat exchange in a self-excited oscillating-flow heat pipe.Moreover,the authors have put forward a variety of key technical problems yet to be solved,such as the nano-fluid concentration and compatibility,fluid filling rate and pipe section structures,etc.All the above has provided an essential theoretical basis for the further experimental study of intensified heat transfer as well as for the design and development of innovative self-excited oscillating-flow heat pipe-based heat exchangers.