The interest in interplanetary space travel has stimulated much discussion on the desirability of using nuclear, rather than chemical, energy for the spacecraft propulsion. Comparisons of the relative merits of various propulsion systems have been extensively discussed in the literature. The results of such studies yield a diversity of conclusions, depending on the assumptions which are made in...

The current situation and possible future developments for nuclear power--including fission and fusion processes--is presented. The fission nuclear power continues to be an essential part of the low-carbon electricity generation in the world for decades to come. There are breakthrough possibilities in the development of new generation nuclear reactors where the life-time of the nuclear waste ca...

The paper is focused on analysis, mathematical modelling and simulation of reactors which are used in the chemical and tanning technology. Material and energy balances are the key issues of mathematical models of chemical reactors and processes. The combination with chemical kinetics and transport effects an intellectual basis for chemical reactor design can be obtained. The contribution brings...

HE study of the biological effect of different radiations has progressed T as sources of the various radiations have been developed. The effects of X, gamma, beta and alpha rays, of protons and fast neutrons, and recently of fission fragments have been studied in numerous organisms, both plant and animal. Before the development of the nuclear reactor, however, there was no source of slow neutro...

The Flash Ironmaking Technology being developed at the University of Utah is aimed at producing iron directly from iron oxide concentrate. In this technology, the concentrate is reduced by H2 and CO gas mixtures formed from the partial oxidation of natural gas in a flash reactor. Natural gas represents an economically and environmentally superior reductant/fuel for the flash ironmaking. The rat...

This paper presents a neural network based model predictive control (MPC) strategy to control a strongly exothermic reaction with complicated nonlinear kinetics given by Chylla-Haase polymerization reactor that requires a very precise temperature control to maintain product uniformity. In the benchmark scenario, the operation of the reactor must be guaranteed under various disturbing influences...

A fixed bed reactor design program is developed by the use of Java JDK1.7 algorithm language with Eclipse program as the platform. The program selects five common fix bed reactor process flows to calculate the main structure parameters of the reactor. With the good interface, the program can output the corresponding results after inputting the kinetics and thermodynamics parameters of the react...

Light alkanes can be converted to more useful chemicals in noble metal coated monoliths at very short contact times. The short-contacttime reactor is described by detailed models for the flow field, chemistry, and their coupling. The partial oxidation of methane to synthesis gas in a rhodium coated monolith is studied numerically as an example. Keyword: reactor modelling, catalytic partial oxid...