and the first control in this sequence is applied to the plant. An important advantage of this type of control is its ability to cope with hard constraints on controls and states. It has, therefore, been widely applied in petro-chemical and related industries where satisfaction of constraints is particularly

Response surface study of a characteristic chemical plant

Life and operational safety of power

Abstract not found

Abstract: This paper illustrates an alternative implementation to automatic protection and supervision task using the basic principles of model-based fault-detection and isolation associated to the rule-based FDI with subsequent appropriate corrective actions. Hybrid systems may be precisely described by sequential function charts (SFC). Operation supervision of hybrid systems may be carried out simultaneously on the basis of such SFC description. As discrete event and continuous processes operate simultaneously in close cooperation, a strategy to diagnose such hybrid system by means of a structured methodology under SFC description tool on the IEC-848 standard is developed. Copyright © 2005 IFAC

This paper discusses the issues involved in applying a generic AI planner to the problem of generating plant operating procedures for chemical process plant. It considers the problem of providing the correct planning facilities, concentrating on dealing with flow of chemicals, and proposes the use

Operating Procedure Synthesis (OPS) has been used to produce operating procedures for chemical plants. This paper discusses the issues that must be addressed in using AI Planning for this task, using a simple example. It shows how a state-of-the-art least commitment planner with goals of prevention

ABSTRACT The thiols in the morning urine of 224 employees of a chemical plant were determined after alkaline hydrolysis of all urinary thioethers. The highest thioether excretion was found in rubber workers and radial tyre builders in comparison with clerks, plastic monomer mixers and footwear

Transposing the notion of software frameworks to the abstraction level of formal specifications and verifications, we developed a framework supporting the formal hazard analysis of chemical plants. It provides generic specification modules for the description of safety properties, specifica-tion

been on small (typically 1 inch) diameter heat exchanger tubing (see, for example, [1-4]). The authors are working on a project whose ultimate aim is to develop a guided wave testing technique for the inspection of pipework in chemical plants, the original target being to detect any areas of corrosion