Experimental Study for the Water Pool Type Reactor Cavity Cooling System in the Very High Temperature Gas Cooled Reactor

摘要

The hydrogen production system coupled with a Very High Temperature Gas Cooled Reactor (VHTGR) is considered as one of the most promising application to allow new processes of massive hydrogen production with economy and emission free. In the cavity of the VHTGR which is the space between the reactor vessel and containment, a reactor cavity cooling system (RCCS) is equipped to remove the heat transferred from the reactor vessel to the structure of the containment. In the present study a new concept of the water pool type RCCS is proposed which consists of the water pool and active air cooling systems. The cooling capability of the RCCS during normal operation and accident condition was evaluated from a series of experiments that was performed in the 1/10 linear scaled model. These experimental data will be used for the validation of the multidimensional gas cooled reactor analysis code, MARS-GCR which will be used for the determination of the optimized design of the water pool type RCCS.