Nuclear technologies have strong potential and a unique role to play in delivering reliable low carbon energy enable net-zero society for future generations. However, assure the sustainability required its long-term success, nuclear will need deliver innovative solutions as proposed iMAGINE. One of most attractive features, but also key challenge envisaged highly integrated system iMAGINE, is d...

Operating costs of merchant ships, related to fuel costs, has led the naval industry search alternatives current technologies propulsion power. A possibility is employ nuclear reactors like Russian KLT-40S, which a pressurized water reactor (PWR) and experience on civilian surface vessels. However, space weight are critical factors in project, addition operational safety costs. This work aims a...

For a sodium-cooled fast reactor, the capability for stable cooling and avoiding re-criticality on debris bed is essential achieving in-vessel retention when severe accidents occur. However, an unexploited uncertainty still existed regarding compound effect of heterogeneous configuration dynamic particle redistribution bed’s criticality safety assessment. Therefore, this research aims to develo...

A novel mathematical and computational model for the formation evolution of radiolytic gas in aqueous fissile solutions is presented. The predicts rate at which bubbles are formed and/or removed from system using semi-empirical correlations calibrated by means numerical simulation. able to reliably predict behaviour solutions, including transient effects due removal gas. further extension enabl...

Water mass composition and transit times of outflowing waters from the Arctic Ocean can reflect changes polar climate ocean circulation upstream. In this study we apply a novel approach using anthropogenic uranium tracers ( 233 U 236 U), combined with salinity, nutrients (nitrate phosphate) to estimate Atlantic passing through into East Greenland fjords. Polar Surface (PSW, typically found in s...