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Modeling and Optimization of Energy Efficiency in the Light of...
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Modeling and Optimization of Energy Efficiency in the Light of Energy Security

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Power Electronics".

Deadline for manuscript submissions: 1 July 2024 | Viewed by 5038

Special Issue Editors

Dr. Aurelia Rybak

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Guest Editor
Department of Electrical Engineering and Industrial Automation, Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology, 44-100 Gliwice, Poland
Interests: membrane technology; environmental protection; metal recovery from industrial wastes; REEs; trade
Special Issues, Collections and Topics in MDPI journals
Dr. Aleksandra Rybak

E-Mail Website
Guest Editor
Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, 44-100 Gliwice, Poland
Interests: element speciation analysis; environmental protection; inorganic chemistry; metal recovery from industrial wastes; REEs; hybrid inorganic-organic membranes; membrane separation
Special Issues, Collections and Topics in MDPI journals
Dr. Jarosław Joostberens

E-Mail Website
Guest Editor
Department of Electrical Engineering and Industrial Automation, Faculty of Mining, Safety Engineering and Industrial Automation, Silesian University of Technology, 44-100 Gliwice, Poland
Interests: automation of processes such as flotation; coal enrichment in a jig; control and supply of drives of mining machines and devices; digital signal processing; identification; modeling and automatic control of industrial processes; energy security

Special Issue Information

Dear Colleagues,

Energy security is currently one of the most important issues for political, environmental, and economic reasons. To ensure this type of security, it is necessary to transform the energy systems of countries around the world. This requires modern solutions in terms of energy efficiency of technologies used, the use of pro-ecological solutions that enable the reduction of greenhouse gas emissions, as well as the development of renewable energy sources technologies, sustainable use of natural resources for energy production, and technology for its acquisition in accordance with the principles of the circular economy. An important aspect of obtaining energy security when using renewable energy sources is the possibility of storing the generated energy and the stable operation of energy systems. We would like the proposed Special Issue to give scientists from various fields an opportunity to present the results of their research within the framework of broadly understood energy security. The submitted manuscripts may relate to energy security in the field of modeling, simulation, and optimization, among others:

  • Energy storage;
  • Processing of materials, obtaining critical raw materials (e.g., REE) for energy production;
  • Saving energy;
  • Renewable energy;
  • Electric vehicles, modern engines, etc.

Dr. Aurelia Rybak
Dr. Aleksandra Rybak
Dr. Jarosław Joostberens
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Electronics is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • renewable energy
  • energy security
  • energy storage
  • critical raw materials

Published Papers (3 papers)

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Research

17 pages, 3604 KiB  
Article
Signal Processing from the Radiation Detector of the Radiometric Density Meter Using the Low-Pass Infinite Impulse Response Filter in the Measurement Path in the Coal Enrichment Process Control System
by Jarosław Joostberens, Aurelia Rybak, Aleksandra Rybak and Paulina Gwoździk
Electronics 2024, 13(1), 227; https://doi.org/10.3390/electronics13010227 - 04 Jan 2024
Viewed by 583
Abstract
One of the most common coal preparations is enrichment in a jig using a float regulation system. The latest solutions propose to compensate for significant measurement errors of the float by introducing a radiometric density meter operating on the principle of gamma radiation [...] Read more.
One of the most common coal preparations is enrichment in a jig using a float regulation system. The latest solutions propose to compensate for significant measurement errors of the float by introducing a radiometric density meter operating on the principle of gamma radiation absorption into the bottom product discharge zone of the jig. The signal from the radiometric density meter detector is in the form of a sequence of pulses with a Poisson time distribution, which are counted by a counter, as a form of digital low-pass filter. The requirement to maintain accuracy at an appropriate level forces the measurement time to be extended, which worsens the dynamic properties. Changes in the density of the coal–water medium have an unsteady, cyclical course, resulting from the principle of operation of the jig. The research goal was to develop an algorithm for processing the signal from the radiation detector using an IIR filter in the measurement path in a way that ensures optimization of the dynamic properties of the radiometric density meter operating in the control system of the coal enrichment process in the jig. For this purpose, a low-pass IIR filter was introduced into the measurement path to process the signal from the pulse counter. The identified course of the medium density for one cycle (the first) served as a reference signal. A first-order IIR filter was proposed, with a constant parameter selected on the basis of the reference signal and a parameter depending on the time derivative of the identified density of the medium. The mean squared error MSE was adopted as an indicator for assessing the dynamic properties of the radiometric density meter. The results of simulation tests showed that introducing an IIR filter into the measurement path gives better results in terms of the adopted criterion than using a counter with a constant measurement time. The best results (MSE = 2.05 × 10−4) were obtained using an IIR filter with a parameter that is a linear function of the derivative of the medium density over time, determined for one air pulsation cycle and applied in four subsequent cycles. These results were obtained for an adaptive first-order filter with a variable parameter a from the designated range from 0.833 to 0.999, for a measurement time of 2 ms. Full article
(This article belongs to the Special Issue Modeling and Optimization of Energy Efficiency in the Light of Energy Security)
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11 pages, 4091 KiB  
Article
Fuzzy Controller in the Products Collecting System of the Jig for Minerals Beneficiation
by Sebastian Jendrysik, Daniel Kowol, Piotr Matusiak, Andrzej Dymarek, Krzysztof Kędzia, Bartosz Polnik, Marcin Szczygieł, Tomasz Trawiński and Mariusz Starak
Electronics 2023, 12(3), 772; https://doi.org/10.3390/electronics12030772 - 03 Feb 2023
Cited by 1 | Viewed by 1099
Abstract
The fuzzy controller of the bottom product collecting system of the pulsating jig is presented. The primary purpose of the research work was to design and properly adapt the fuzzy controller so that it would enable the correct operation of the jig with [...] Read more.
The fuzzy controller of the bottom product collecting system of the pulsating jig is presented. The primary purpose of the research work was to design and properly adapt the fuzzy controller so that it would enable the correct operation of the jig with appropriate control properties in all compartments of the jig. The results of industrial tests, in which selected indicators of regulation quality were considered, were analyzed. A comparative analysis of the tested fuzzy controller and the classic PID controller was also performed. Full article
(This article belongs to the Special Issue Modeling and Optimization of Energy Efficiency in the Light of Energy Security)
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12 pages, 10447 KiB  
Article
The Use of the MQTT Protocol in Measurement, Monitoring and Control Systems as Part of the Implementation of Energy Management Systems
by Anna Manowska, Artur Wycisk, Andrzej Nowrot and Joachim Pielot
Electronics 2023, 12(1), 17; https://doi.org/10.3390/electronics12010017 - 21 Dec 2022
Cited by 5 | Viewed by 2799
Abstract
The Internet of Things (IoT) market is currently one of the most dynamically developing branches of technology. The increase in the number of devices and their capabilities make them present in every area of life—from construction to medicine. Due to flourishing industrial automation [...] Read more.
The Internet of Things (IoT) market is currently one of the most dynamically developing branches of technology. The increase in the number of devices and their capabilities make them present in every area of life—from construction to medicine. Due to flourishing industrial automation and wireless connectivity, all devices in buildings can be networked, which significantly improves comfort, energy efficiency, and thus significantly affects the promotion of the idea of sustainable development. This article proposes to build a system to monitor an energy management system by collecting information about temperature, humidity and pressure. The concept of the system is based on the Message Queue Telemetry Transport (MQTT) communication protocol, a wireless network, an ESP8266 microcontroller and a BME280 sensor. Sensors and actuators are connected to the ESP8266, and a Mosquitto-based MQTT broker is placed on the RPi and set up for remote monitoring and control. An innovative approach to the use of database systems dedicated to time series on the example of InfluxDB and data visualization in the Grafana environment was also presented. The proposed system was built in laboratory conditions in 2022 and used to monitor and control energy consumption in real time, depending on Polish weather conditions. Full article
(This article belongs to the Special Issue Modeling and Optimization of Energy Efficiency in the Light of Energy Security)
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