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In many process industries storage tanks are used to restore liquids requiring level control. Liquid height in each tank shows integrating plus dead time (IPDT) behavior. When two such tanks are connected in series gives us a double integrating plus dead time (DIPDT) process. A DIPDT process itself is unstable for step inputs/changes. Hence it is recommended to use a controller for stabilizing the...
Ammonia is essential in obtaining fertilizers like urea and NPK, which is produced from nitrogen and hydrogen. Nitrogen can be extracted from atmospheric air and hydrogen is extracted from natural gas or naphtha, where carbon and hydrogen are in the ratio of 5.45:1. Naphtha contains organic and inorganic sulphur. Hydrogen desulphurization process reduces sulphur content in naphtha as sulphur forms...
Ferrochromium and chromium based compounds are produced worldwide from chromite ore. Chrome chemicals are from chromium based compounds. Basic-chromium-sulfate (BCS) is a chrome chemical mostly required as main tanning agent in chrome tanning process in leather industry and also to synthesize other chromic compounds. During the preparation of basic-chromium- sulfate, sodium dichromate containing chromium...
Many industrial chemical processes involve exothermic (heat generating) reactions whose temperature needs to be controlled for safe operation of the process. If there is any irregularity in coolant flow, the reactant temperature becomes difficult to control. Reaction continues under unsafe condition till all the reactants finish which may lead to hazardous reaction. Dicumyl peroxide reaction is one...
System or process identification is a mathematical modeling of systems (processes) from test or experimental data. Process models obtained from identification process can be used for operator training simulator, analysis and design of safety systems, and design of process and control systems. This paper presents the Linear Parameter Varying (LPV) model identification for Industrial boiler furnace...
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