A systematic step-by-step framework for analyzing hydrogen behavior and implementing passive autocatalytic recombiners (PARs) to mitigate hydrogen deflagration or detonation risk in severe accidents (SAs) is presented.
The incident was reported to the National Military Command Center as a Bent Spear incident, which indicates a nuclear weapon incident that is of significant concern but does not involve the immediate threat of nuclear war (Pinnacle – Nucflash), or the accidental detonation of or severe damage to a nuclear weapon (Pinnacle – Broken Arrow).
Indoor detonations tend to cause more severe primary blast injuries than do open air, outdoor bombings.
A high-speed metal jet capable to cause severe damage to a double-hull structure can be produced after detonation of a shaped charge.
In order to sustain the structural integrity of the containment and other safety relevant components i.e. to avoid a detonation of the hydrogen-air mixture generated during a severe accident in light water reactors, passive auto-catalytic recombiners (PAR) are used for hydrogen removal in many European nuclear power plants (NPP).
The design of a practical pulse detonation combustor requires the components to be capable of enduring the severe thermal environment created by repetitive detonations.
On 24 January 1961, a B-52G broke up in midair and crashed after suffering a severe fuel loss, near Goldsboro, North Carolina, dropping two nuclear bombs in the process without detonation.
In order to mitigate flame acceleration and detonation in hydrogen-air mixtures, which can lead to the release of harmful radionuclides in severe nuclear plant accidents, water spray systems are being considered.
This study focuses on the identification of concrete behavior under severe triaxial loading in order to better evaluate the vulnerability of sensitive infrastructure to near-field detonations or ballistic impacts.
Turbulent flow at a wide range of Mach numbers may occur during design based accidents (DBA) or severe accidents in nuclear power plants (NPPs), for instinct, incompressible gas mixing flow (subsonic), gas mixture critical flow (transonic) or detonation (supersonic).
