Severe accidents in Light Water Reactors (LWRs) involve the production of hydrogen, which may accumulate upper regions containment and form flammable mixtures with initial air inventory. To study phenomena related to light gas layer removal, H2P1_10_2 HYMERES test (Paranjape et al., 2019, Paranjape 2020) was conducted PANDA vessel aim investigating erosion a helium-rich by steam jet deflected a...

Fission gas plays a significant role in fuel rod performance following accidents. The amount of fission increases dramatically under accidental conditions. This leads to subsequent rise the internal pressure and temperature due aggravated gap conductance between pellet cladding. As result, degrades. Therefore, studying behavior is crucial for accident assessment evaluating performance. Minimizi...

studies on the biometric parameters of a species to have an important role in its population or stock management and conservation. present study investigated the morphometric, meristic, length-weight relation (lwrs), length-length relation (llrs) and growth status (k and kn) of the redline torpedo barb, p. denisonii collected during august 2012 to july 2013 from river valapattanam, kerala. the ...

the research carried out the length-length relationships (llr), length-weight relationship (lwr) and condition factor of nine freshwater small indigenous species viz. g. giuris, e . danricus, m . pancalus , l . guntea, c. fasciatus, p. sophore, h .  fossilis, c .   punctatus and m. cavasius from the waterbodies of nageshwari, bangladesh. relationships among different body lenght parameters of e...

The nuclear reactors themselves are complex systems whose responses driven by interactions between different physics phenomena within the reactor core. Traditionally, have been analyzed separately and its interaction considered via boundary conditions or closure models. However, in parallel with development of computational technology, multi-physics coupled simulations being used to obtain accu...

Current approaches to validate multi-physics coupling mainly rely upon experimental data from the operation of current reactor fleet. These allow global validation based on Light Water Reactor (LWR) macroscopic physical parameters interest. However, they are insufficient for validating detailed at assembly and pin level. The use well-controlled provided by research reactors is essential impleme...

The present study describes for the first time some biological aspects (size composition, sex ratio, length-weight relationship and condition factor) of Ponticola constructor (Caucasian goby) inhabiting Borçka Dam Lake its tributaries from lower Çoruh River Basin located in northeastern Türkiye. Fish samples were caught June 2017 to May 2018 by using trammel nets with various mesh sizes pulsed ...

Presently, LWR (light-water reactor) fuel cladding (tube) is made from Zr-base alloys (e.g., Zircaloy). However, in steam at temperatures above 1000 K (727 °C), these alloys oxidize rapidly, stripping oxygen from water molecules and producing hydrogen, which may cause explosion. Moreover, Zr-base alloys are prone to GTRF (“grid-to-rod” fretting) failure, in which flowinduced vibration of fuel r...

In a Commission briefing on high-bumup fuel on March 25, 1997, the staff said that they would prepare a white paper on mixed-oxide (MOX) fuel in anticipation of a DOE program to bum excess weapons plutonium in commercial reactors. This memorandum and its attachment comprise that paper and are provided to inform the Commissioners of technical issues associated with such a program. More recently,...

Atomic Energy Society of Japan has published “Standard Method for Safety Evaluation using Best Estimate Code Based on Uncertainty and Scaling Analyses with Statistical Approach” to be applied to accidents and AOOs in the safety evaluation of LWRs. In this method, hereafter named as the AESJ-SSE (Statistical Safety Evaluation) method, identification and quantification of uncertainties will be pe...