Power limit and quality limit of natural circulation reactor

摘要

The circulation characteristics of natural circulation reactor in boiling regime are researched. It is found that, the circulation mass flow rate and the power have a peak value at a mass quality respectively. Therefor, the natural circulation reactor has a power limit under certain technological condition. It can not be increased steadily by continually increasing the mass quality. Corresponding to this, the mass quality of natural circulation reactor has a reasonable limit. The relations between the maximum power and the reactor parameters, such as the resistance coefficient, the working pressure and so on, are analyzed. It is pointed out that the power limit of natural circulation reactor is about 1000MW at present technological condition. Taking the above result and low quality stability experimental reuslt into account, the authors recommend that the reasonable mass quality of natural circulation reactor working in boilign regime is from 2