Standby Gas Treatment System (SGTS) is one of the engineered safety features installed in BWR and ABWR plants to limit the discharge of radioactivity into the environment during the reactor accident. Kl3 impregnated charcoal (iodized charcoal) filter is used for removing of radioactive iodine species such as molecular iodine and methyl iodide. It is well known that the removal capability of imp...

To investigate wall-thinning impact on axial load resistance of Zircaloy-4 cladding rods after a LOCA transient, tensile samples have been machined as-received tubes with reduced thicknesses between 370 and 580 ?m. After high temperature oxidation under steam at 1200 °C measured ECR ranging from 10 to 18% water quenching, were axially loaded until fracture. These tests modeled using fracture me...

1) Hydraulic Analysis of the Emergency Core Spray System in a BWR The emergency spray system of a BWR delivers cold water to the core after a large-break loss of coolant accident has emptied the reactor vessel. The system comprises a large water pool, a pump, a spray nozzle and connecting pipes (Figure 1). All pipes are smooth round tubes made of stainless steel with 10 cm internal diameter. Th...

Studying the migration and diffusion of radionuclides plays an important role in emergency decision making accident mitigation floating nuclear power plants. Based on CALPUFF model, this paper simulates spatial distribution concentration airborne 131I under conditions sailing supply LOCA (Loss-of-Coolant Accident) plant, influence four meteorological parameters, namely wind speed, cloudiness, t...