Thermal hydraulics in a passively safe reactor

In the advanced marine reactor that is being developed in Japan, decay heat accumulated in a reactor vessel will be released to the atmosphere through naturally circulating water in a container vessel. The authors are conducting studies on the heat transfer and fluid flow in a rectangular parallelpiped vessel equipped with a heater and a cooler to simulate the container vessel. The purpose of this paper is to investigate the effect of the geometric configuration, such as locations of the heater and the cooler and existence of the baffle plate, on the heat transfer performance