关键词: 板式脉动热管, 气液两相流, 传热, 传质, 启动, 极限

Abstract: 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.

Key words: flat-plate pulsating heat pipe, liquid-gas two phase flow, heat transfer, mass transfer, start-up, limit