scholarly journals Color sensor application in high-temperature spectral ratio pyrometer

2022 ◽  
Vol 1211 (1) ◽  
pp. 012022
Author(s):  
A A Valke ◽  
D G Lobov ◽  
A G Shkaev

Abstract Contactless thermal control tools play an important role in solving the high-temperature technological processes improving energy efficiency problems. In order to create such controls, the authors analyzed the developing possibility of spectral ratio high-temperature pyrometer using a multispectral radiation receiver (color sensor) TCS34725. In the paper this receiver application coefficients are determined, signals ratio graphs in different spectral intervals on temperature are given for two applications: without additional filtration of the control object radiation infrared component and using an opaque in the infrared spectrum part external filter.

Author(s):  
Н.А. Кислицын ◽  
Д.Ш. Акчурин ◽  
М.Г. Баширов

Автоматизация технологических процессов играет все более важную роль в условиях цифровизации управления технологическими процессами, производствами и целыми предприятиями. Важнейшей составной частью процесса цифровизации современного промышленного производств является подготовка кадров, владеющих необходимыми компетенциями в области программирования, монтажа, наладки, ремонта и эксплуатации современных цифровых средств и систем управления. Для решения этой задачи средние специальные и высшие учебные заведения должны иметь учебно-исследовательские лабораторные комплексы, позволяющие обучающимся приобрести необходимые для профессиональной деятельности знания, умения и навыки. В условиях действия экономических санкций против России актуальным становится разработка таких учебно-исследовательских лабораторных комплексов на основе современных отечественных программно-технических комплексов автоматизации. Для расширения функциональных возможностей созданного учебно-исследовательского лабораторного комплекса, содержащего физический тепловой объект управления в виде эмулятора печи, комплекс дополняется виртуальными объектами управления, созданными путем их моделирования. Использование виртуальных объектов управления позволяет создавать модели технологических процессов на их основе, разрабатывать и исследовать системы автоматического управления этими процессами. Разработан цифровой двойник физического учебно-исследовательского лабораторного комплекса, позволяющий в полном объеме выполнять все лабораторные работы в дистанционном формате обучения. Automation of technological processes is playing an increasingly important role in the context of digitalization of the management of technological processes, production facilities and entire enterprises. The most important part of the digitalization process of modern industrial production is the training of personnel who have the necessary competencies in the field of programming, installation, commissioning, repair and operation of modern digital means and control systems. To solve this problem, secondary specialized and higher educational institutions must have educational and research laboratory complexes that allow students to acquire the knowledge, skills and abilities necessary for professional activity. In the context of economic sanctions against Russia, the development of such educational and research laboratory complexes based on modern domestic software and hardware automation systems becomes urgent. To expand the functionality of the created educational and research laboratory complex containing a physical thermal control object in the form of a furnace emulator, the complex is supplemented with virtual control objects created by modeling them. The use of virtual control objects allows you to create models of technological processes based on them, to develop and research systems for automatic control of these processes. A digital twin of the physical educational and research laboratory complex has been developed, which allows performing all laboratory work in a distance learning format in full.


Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3338 ◽  
Author(s):  
Krzysztof Gaska ◽  
Agnieszka Generowicz

The paper presents advanced computational solutions for selected sectors in the context of the optimization of technology processes as an innovation and progress in improving energy efficiency of smart cities. The main emphasis was placed on the sectors of critical urban infrastructure, including in particular the use of algorithmic models based on artificial intelligence implemented in supervisory control systems (SCADA-type, including Virtual SCADA) of technological processes involving the sewage treatment systems (including in particular wastewater treatment systems) and waste management systems. The novelty of the presented solution involves the use of predictive diagnostic tools, based on multi-threaded polymorphic models supporting decision making processes during the control of a complex technological process and objects of distributed network systems (smart water grid, smart sewage system, smart waste management system) and solving problems of optimal control for smart dynamic objects with logical representation of knowledge about the process, the control object and the control itself, for which the learning process consists of successive validation and updating of knowledge and the use of the results of this updating to make control decisions. The advantage of the proposed solution in relation to the existing ones lies in the use of advanced models of predictive diagnostics, validation and reconstruction of data, implemented in functional tools, allowing the stabilization of the work of technological objects through the use of FTC technology (fault tolerant control) and soft sensors, predictive measurement path diagnostics (sensors, transducers), validation and reconstruction of measurement data from sensors in the measuring paths in real time. The dedicated tools (Intelligent Real Time Diagnostic System − iRTDS) built into the system of a hierarchical, multi-threaded control optimizing system of SCADA system allow to obtain advanced diagnostics of technological processes in real time using HPC technology. In effect of the application of the proprietary iRTDS tool, we obtain a significant rise of energy efficiency of technological processes in key sectors of the economy, which in global terms, e.g., urban agglomeration, increases the economic efficiency.


Author(s):  
Dmitrii A. Kovalev ◽  

The analysis of technological processes for a real control object-a recovery boiler is performed in order to determine faults and possible emergency situations. The recovery boiler is considered as a complex control object (in which a chemical reactor is combined with a steam power boiler), which is advisable to decompose into several interconnected subsystems. The study was carried out in accordance with the HAZOP application manual in the form of a qualitative analysis of faults and possible abnormal situations in the recovery boiler. The study was conducted in accordance with the decomposition of the recovery boiler for each constituent of the interconnected subsystems. As a result of research, for each of the subsystems of the recovery boiler, HAZOP work tables were developed that allow you to identify root frames-linked to specific causes of possible faults.


1994 ◽  
Vol 52 (3-4) ◽  
pp. 439-446 ◽  
Author(s):  
H. Vilanove ◽  
M. Jacon ◽  
J.R. Jevais

Author(s):  
Raffaele Saladino ◽  
Giorgia Botta ◽  
Marcello Crucianelli

Organosulfur compounds show a negative environmental impact because of SOx emissions by combustion of fuel oils. As a consequence, removal of sulfur is becoming a worldwide challenge. The hydrodesulfurization (HDS) process achieves limited performances in the case of refractory S-containing aromatic compounds, such as thiophene and substituted benzothiophenes (BTs), which require highly energy-demanding conditions (high temperature and pressure conditions). Oxidative desulfurization (ODS) is considered the most promising alternative to HDS. During ODS treatment, the organosulfur compounds are oxidized to corresponding sulfoxides and sulfones, which can be successively removed by extraction with polar solvents. Different stoichiometric oxidants have been used in the ODS processes with a different degree of efficacy and environmental impact. The design and development of catalytic procedures can increase the ODS energy efficiency as well as make it more economical and environmentally acceptable. Here we describe the advances in nanostructured organometallic catalysis and biotechology applied to ODS treatment.


2013 ◽  
Author(s):  
Feifei Xu ◽  
Yong Hu ◽  
Qiu Yin ◽  
Cailan Gong ◽  
Lingya Zhu ◽  
...  

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