Chaos in nonlinear dynamics occurs widely in physics, chemistry, biology, ecology, secure communications, cryptosystems and many other scientific disciplines. Chaotic systems have many important applications in science and engineering. This paper derives new results for the analysis and adaptive control of a chemical chaotic attractor discovered by Haung (2005). This paper starts with a detaile...

A classical problem in chemical reactor design can be stated roughly in the following way: Given a network of chemical reactions and a specified feed, how should one design a chemical reactor to enhance the production of certain desired species while suppressing the production of undesired ones? The purpose of this article is to describe recent work in which geometric control theory provides so...

We introduce a very simple open two-dimensional gel reactor for studying chemical patterns that arise in reaction-diffusion systems. The reactor consists of a thin disk-shaped layer of polyvinyl alcohol gel with one face in direct contact with a well-stirred flow reactor containing reactants of the chlorite-iodide-malonic acid system; the other face of the gel is in contact with a piece of tran...

This document summarizes the large program of chemical research and development which led to selection of fuel and coolant compositions for the Molten-Salt Reactor Experiment (MSRE) and for subsequent reactors of this type. Chemical behavior of the LiF-BeFrZrFrUF4 fuel mixture and behavior of fission products during power operation of MSRE are presented. A discussion of the chemical reactions w...

The paper presents some different methods for a chemical exothermic batch reactor control. A mathematical model including reaction kinetics was used to simulate a real process. The process chemical reaction is strongly exothermic so the in-reactor temperature is rising very fast due to reaction component dosing. Thus, the temperature control is necessary. The system is nonlinear because of chem...

The design, construction and control of artificial self-organized systems modelled on dynamical behaviours of living systems are important issues in biologically inspired engineering. Such systems are usually based on complex reaction dynamics far from equilibrium; therefore, the control of non-equilibrium conditions is required. Here we report a droplet open-reactor system, based on droplet fu...

Reactor and reaction engineering play a vital role in petroleum and chemical processing. The aim of this article is to acquaint the reader with the interaction between reactor design=selection and the characteristics of the chemical reaction of interest. Reactor selection and design are the basis of economical and safe operation. Chemical reactions in petroleum refining include a huge spectrum ...

the epitaxial silicon chemical vapor deposition by SiClq/H2 mixtures in a LPE 861 barrel reactor has been simulated by means of a detailed 2D model solved by the commercial finite element code FIDAP. Different reactor configurations (i .e., bell diameter, gas diffusers, susceptor tilting angle) and deposition conditions ( i .e . , flow rates and reactor pressure) have been examined. The simulat...

Two microwave-induced plasma reactors are being investigated. As first approach, a small scale plasma reactor (100 300 ml/min) so-called Surfatron is studied to gain insight into gas/plasma phase reactions. A parametric study of various key gas phase reactions is being performed. Furthermore, an up-scaled plasma reactor (100 l/min) will be utilized to understand the needs towards developing an ...

In this paper, the endothermic methanol decomposition reaction is used to obtain syngas by transforming middle and low temperature solar energy into chemical energy. A two-dimensional multiphysics coupling model of a middle and low temperature of 150~300 ◦C solar receiver/reactor was developed, which couples momentum equation in porous catalyst bed, the governing mass conservation with chemical...