The iron bath gasifier studied in this paper is a new type of reactor for handling organic solid waste, which the complex transport phenomena comprising high temperature, multiphase flow, mixing, and chemical reaction takes place. It great significance to study melt’s flow mass transfer behavior reactor. influence different process parameters on mixing molten pool was by water modeling experime...

This report presents the methods and calculated results of activity inventory in structural components Dalat Nuclear Research Reactor (DNRR). These include shielding concrete, reactor tank, its inside irradiated facilities; thermal thermalizing columns; horizontal channels. The MCNP5 code with a three-dimensional neutron transport model was used to calculate flux distribution, energy spectrum a...

Continuous vibrating spatial particle ALD reactors were developed to achieve high powder throughput while minimizing reactor footprint. Unlike fluidized bed reactors, continuous operate below fluidization, using linear vibration convey particles through alternating regions of precursor gas. Fine convection in these is still not well understood, so cohesive discrete-element-method (DEM) simulati...

The aim of this study was (i) to investigate alternatives to the very toxic Ni(C0)4, (ii) optimization of the parameters for Ni film growth, and (iii) characterization of the film morphology. The thermal behaviour of the precursors bis(dirnethylglyoximato)Ni(II), [Ni(dmg)2], bis(2,2,6,6-tetramethyl-3,5-heptandionato)Ni(II), [Ni(thd)2], N,N'-ethylenebis(2,4-pentandioniminoato)Ni(II), [Ni(enacac)...

chemical vapor deposition (cvd) is one of the most important methods for producing carbon nanotubes (cnts). in this research, a numerical model, based on finite volume method, is investigated. the applied method solves the conservation of mass, momentum, energy and species transport equations with aid of ideal gas law. using this model, the growth rate and thickness uniformity of produced cnts,...

MIT has been developing a conceptual design for pebble bed reactors since approximately 1998, when a student design project concluded that in order to resurrect the nuclear power industry a new, innovative approach was needed, not only in reactor design but also in construction and operation. In their quest to identify the appropriate technology several key conclusions were reached. First was t...