In this paper we give an overview of the application of chemical reactor theory to models of digestion processes and indicate how those models extend to eco-physiological questions of modulation of digestion and feeding. In particular, we discuss processes that organisms may use to manage their nutrient intake, including optimality, ecological stoichiometry, and regulatory physiology. In the co...

In this paper the simulation results of the adaptive control inside the tubular chemical reactor with counter-current cooling in the jacket is shown. The adaptive controller is based on the choice of the External Linear Model as a linear representation of the originally nonlinear system parameters of which are identified recursively. The polynomial method together with spectral factorization an...

In this paper, the design of a robust static output feedback controller is presented. This problem is transformed to solving of linear matrix inequality (LMI) problems. A computationally simple LMI based non-iterative algorithm is used. The design procedure guarantees with sufficient conditions the robust quadratic stability and guaranteed cost. The presented approach is applied for robust cont...

(30 pts) 1. You have been requested to troubleshoot problems with a well stirred reactor in your Texas chemical production plant. After taking the red eye flight and a long taxi ride to your hotel and then the plant your arrive exhausted, but eager to solve this problem. Apparently the problem with this 165 L reactor is that the conversion of the reactant, Anychemical, is too low at XA = 0.53. ...

The urea reactor is one of the most important units in the urea synthesis process. Rigorous simulation of the urea reactor is necessary and significant. Ho,wever, the complicated thermodynamic system and chemical reactions result in difficulties of modeling and simulation. In this work, the urea reactor is considered as a critical gas-liquid concurrent fluid reactor, in which some perforated pl...

A pulsed plasma enhanced chemical vapor deposition (PECVD) reactor is used for the preparation of thin polyacetylene films. A theoretical model based on the mass transport characteristics of the reactor is developed in order to correlate with experimentally obtained spatial deposition profiles for the acetylene plasma polymer film deposited within the cylindrical reactor. Utilizing a free radic...

In this study, temperature variations in a mesophilic anaerobic reactor were used to control the reactor degradation capacity. When the reactor temperature was periodically changed from 32°C to 46°C with a period of 12 h, a near liner increase in methane production in response to temperature augmentation was observed. Furthermore, when the reactor temperature was increased during increased orga...

The chemical composition, hydrolysis products, and kinetics during liquid hot water pretreatment of sweet sorghum bagasse (SSB) and eucalyptus wood chips (EWC) were investigated. Under optimal conditions, a total xylose recovery of 79.6% and 55.6% for SSB and of 74.9% and 84.4% for EWC was achieved after pretreatments in a step-change flow rate reactor (184 °C, 20 ml/min, 8 min, and 10 ml/min, ...