Identification of mathematical control model aimed at controlling absorption devices for selective gas emissions cleaning

Equipping gas absorption apparatuses with automated control systems for the hydrodynamic mode of their operation is by far the most effective means of improving the quality and efficiency of their operation. At the same time, the most time-consuming task in commissioning such devices is to configure the parameters of the automated control system. The purpose of the study, considered in this paper, is to enhance the quality of operation and increase the energy efficiency of systems for gas emission sorption purification by maintaining the most intensive hydrodynamic modes of their operation. The main goal is to create an automated control system and an algorithm for mathematical control model identification program. The automated control system and algorithm, regarded in this article, make it possible to identify the mathematical control model (also called auto-calibration) by testing the apparatus in an automated mode. The paper gives a description of the mechanism for recognizing hydrodynamic modes and searching for an emulsification mode to identify a mathematical model for automatic control of a packed absorption apparatus. A diagram of the system for identification and control of a packed absorption apparatus operating modes is suggested. An algorithm for the identification program for the mathematical control model (auto-calibration) of a mass-exchange absorption system is presented. The proposed automated control system and auto-calibration algorithm enables the reduction of the commissioning time by up to 8 times and helps to improve the quality and energy efficiency of the gas absorption purification process.

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