Electric power generation by high level radioactive waste from spent fuel

Using FP and TRU cermet fuels as heat sources, a power plant system has been studied. Providing that the density of the fuel is 5 T/m3 for FP and 7 T/m3 for TRU, the total power density will be 2.0 MW/m3 after one year cooling and 0.3 MW/m3 after ten years cooling. Surveying the thermal conductivity and the coefficient of heat transfer, the temperature distribution in the fuel element, the flow rate and the temperature of the coolant are also studied. The calculation results show that the maximum temperature in the fuel at the super steam cooling channel, is still below the heat-resisting temperature of the fuel (about 1000 deg C). Procedures against loss of coolant accident are also studied. (author)