원자로 모의 다공질 매체의 유효 열전달 계수 측정

Measurement of the Effective Thermal Conductivity of Porous Media in the Mockup Apparatus of Reactor Vessel

Temperature distribution measurements in the mockup apparatus of reactor vessel were performed to determine the effective thermal conductivity of Al powder porous media where stainless steel tubes were installed with different geometry. The temperature distributions at four separated sections with different arrangements of porous media have different slopes according to the geometrical configuration. From the measured temperature distribution, effective thermal conductivity have been derived using the least square fitting method.