Safety in industrial processes is the contemporary trend observed in the context of industrial automation and internet of things using smart systems. Every process industry uses certain chemicals to obtain its output. Depending upon the guidelines lay down by the industries; these chemicals may be hazardous or otherwise. Industrial automation applied to actuation of Industrial valves can be an emerging area of study considering handling hazardous chemicals. This paper intends to propose a supervisory control and data acquisition system for handling of hazardous chemicals using automated industrial valves. Initially the requirements for handling of hazardous chemicals shall be summarized and the process parameters governing the same shall be elaborated. Thereafter the role of industrial valves and their applicability shall be communicated with the intention to introduce automation in valve actuation. On establishing a premise in this manner, the latter part shall comprise design considerations to initiate, develop and execute supervisory control and data acquisition systems to suit the aim of this work. Certain challenges and suggested measures to mitigate the same shall be presented towards the end to ensure practicality of the topic. Industries handling hazardous chemicals are at times at a risk of incidents or accidents owing to failure of power distribution or compressed air distribution systems. In order to counter the undesirable effects of such failures, failsafe systems are employed. However in handling of hazardous chemicals, supervisory control and data acquisition systems can be linked with the chemical kinetics of the flow media and can be implemented to ensure overall industrial safety. This paper shall initially elaborate the flow through industrial valves, concepts of actuation and automation, failsafe systems and chemical kinetics. Failsafe systems considering various factors affecting rate of reactions shall elaborate the system requirements for a robust design. Principles of thermodynamics and thermo-chemistry shall be a reference to comprehend the qualitative effects. These enable the designer to select the appropriate failsafe action. Design considerations and significance of the topic with respect to industrial safety shall be put forward towards the conclusion.
kinetics; hazardous; valve; failsafe; reaction
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