板式脉动热管的实验与应用研究进展  

Advances in the experimental investigations and applications of flat-plate pulsating heat pipe

作　　者：焦波[1] 

机构地区：[1]哈尔滨理工大学荣成学院,山东荣成264300

出　　处：《化工进展》2014年第9期2252-2259,2265,共9页Chemical Industry and Engineering Progress

摘　　要：板式脉动热管具有结构简单、成本低、适应性好、传热性能极佳、易于微小型化等优点,因此作为微小设备冷却系统更具竞争力,也吸引了众多研究者的关注,但目前仍缺乏有效的设计准则指导工程应用。本文在介绍了脉动热管的工作原理及特点基础上,综述了近年来针对板式结构所开展的研究,以水力直径变化为主线总结了传热性能的研究,包括管内流型和振荡特征、主要参数的影响以及进一步提高传热性能的途径;回顾了有关启动特性的研究,涉及启动条件、启动过程时间与温度的关系及相关理论分析;介绍了目前传热极限发生机理的分析,同时简述了板式脉动热管应用方面的研究进展;最后指出了目前未能解决的关键问题,特别是为充分发挥板式结构微小型化的优势,对影响启动条件的参数研究至关重要。Because of its simple structure , low cost , good flexibility , excellent heat transfer performance,easy for microminiaturization,the flat-plate pulsating heat pipe （FP-PHP） is more competitive as cooling system for small devices. However,the effective design technique has not been developed for industry applications. This paper introduced the principle and characteristic of PHP,and reviewed the significant achievements on FP-PHP in recent years. The investigations on heat transfer performance were summarized based on hydraulic diameter,flow pattern and oscillating characteristic inside PHP,the effects of main parameters,and the ways to further improve the heat transfer performances. The studies on start-up characteristic were summarized,including start-up conditions, the relationship between temperature and time during start-up period,and the theoretical analysis. The available conclusions on the mechanism of heat transfer limit were given,and the advances in the applications of FP-PHP were described briefly. Finally,the key problems that have not been solved were discussed,especially the importance of the research on start-up conditions,in order to take the advantage of microminiaturization of FP-PHP.

关 键 词：板式脉动热管 气液两相流 传热 传质 启动 极限 

分 类 号：TK124[动力工程及工程热物理—工程热物理]