Following the NPP accident, several hundred tons of heat-generating corium and fuel debris
have been cooled permanently by millions of m3 of flowing. Knowledge on the interaction …

Research and development in nuclear reactor physics and thermal-hydraulics continue to
be vital parts of nuclear science and technology in Japan. The Fukushima accident not only …

The production and dispersion of contaminated aerosols during the laser cutting of corium
can potentially provide useful insights into the dispersion of contamination during the …

Uranium nitride (UN)-uranium dioxide (UO 2) composite fuels are being considered as an
accident tolerant fuel (ATF) option for light water reactors. However, the complexity related to …

Cutting fuel debris (solidified corium) is an important issue for the decommissioning of
Fukushima Daiichi Power Station. The main reasons for developing and using suel debris …

Spargers are multi-hole injection pipes used in Boiling Water Reactors (BWR) and
Advanced Pressurized (AP) reactors to condense steam in large water pools. A steam …

Composite fuels such as UN-UO 2 are being considered to address the lower oxidation
resistance of the UN fuel from a safety perspective for use in light water reactors, whilst …

Abstract After Fukushima Daiichi accident the importance of software tools that enable the
NPP safety assessment for the overall sequence of severe accident processes has revived …

Spargers are multi-hole injection pipes used in Boiling Water Reactors (BWR) and
Generation III/III+ Pressurized Water Reactors (PWR) to condense steam in large water …

In the frame of severe accident modeling, the knowledge of the so-called-corium
thermophysical properties is crucial to obtain reliable simulation. In this work, an …