Experimental research on the reciprocating-mechanically pumped two-phase cooling system

A completely new MPCL system was put forward in the paper and the experimental platform was set up. In the preliminary experiment, when the system was filled with different filling rates, the start-up and operating performance was study. The optimal filling rate was obtained. And meanwhile the conclusion was made that uneven heat source and insufficient drive capability of the pump lead to the poor performance of the system. So the experimental scheme was improved from these two aspects. Through the improvement of the heat source, the start-up and operating performance of the system alter for the better. Based on the optimized heat source, the drive capability of mechanical pump was improved. The system has shorter start-up time, lower steady-state temperature and smaller temperature fluctuation. The system also has larger heat load when it operates and has no temperature pulse when the heat load changes. In a word, the heat transfer capability of the system was improved greatly. According to the experimental research, the MPCL system can start up smoothly and operate safely. The equivalent heat transfer coefficient of the system can get very large and temperature uniformity of the system is very well. The experimental research has laid the foundation for further study.