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Energies
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Selected Papers from the 54th Inter-University Metrology Conference
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Selected Papers from the 54th Inter-University Metrology Conference

A special issue of Energies (ISSN 1996-1073).

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 6810

Special Issue Editors

Prof. Dr. Dariusz Świsulski

E-Mail Website
Guest Editor
Department of Metrology and Information Systems, Gdańsk University of Technology, 80-233 Gdańsk, Poland
Interests: metrology; information systems
Dr. Marzena Mięsikowska

E-Mail Website
Guest Editor
Faculty of Mechatronics and Mechanical Engineering, Kielce University of Technology, 25-314 Kielce, Poland
Interests: metrology; information systems; statistics; signal processing

Special Issue Information

Dear Colleagues,

The Inter-University Metrology Conference is organized by the scientific community of Polish universities and has a long-standing tradition. The first conference was held in 1966 and concerned the teaching of measurement. The current edition is focused on scientific research, technology development, engineering policy, and management studies related to the general field of energy, from technologies of energy supply, conversion, dispatch, and final use to the physical and chemical processes behind such technologies and measurements.

The Special Issue will include the following topics:

  • present and potential developments in metrology;
  • standards, certificates, and accreditations;
  • metrology and systems;
  • analysis of measurement results and uncertainty assessment;
  • process analysis, modeling, and optimization;
  • heat transfer and heat exchangers;
  • energy-saving and clean technologies;
  • numerical fluid flow and heat transfer simulation;
  • work and heat exchanger networks;
  • electrical engineering;
  • electric vehicles;
  • energy and environment, sustainable energy, and sustainability analysis metrics: theory and applications;
  • energy storage and applications;
  • energy sources;
  • diagnostics and prognostics of energy conversion chains;
  • chemical energy;
  • energy economics and policy;
  • energy use in industry.

We kindly invite you to submit articles for this Special Issue edition. 

Prof. Dr. Dariusz Świsulski
Dr. Marzena Mięsikowska
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. Energies 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 2600 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

  • metrology
  • standards, certificates, accreditation selectrotechnics
  • information systems
  • measurement and diagnostic systems
  • signal processing
  • process integration
  • electrical engineering
  • electric vehicles
  • energy and environment, sustainable energy, sustainability analysis metrics: theory and applications
  • energy storage and applications
  • energy sources.

Published Papers (4 papers)

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Research

11 pages, 1859 KiB  
Article
Active-Arm Bridge with Two-Channel DC Voltage Source for Comparison of High-Resistance Standards in 1:1 Ratio
by Krystian Krawczyk, Michał Lisowski and Marian Kampik
Energies 2023, 16(3), 1135; https://0-doi-org.brum.beds.ac.uk/10.3390/en16031135 - 19 Jan 2023
Viewed by 1013
Abstract
In this paper, a guarded active-arm bridge for high-resistance standards with programmable two-channel source of DC voltage is described. Both channels of this source are controlled from a common reference voltage. This ensures a high stability of the voltage ratio of both source [...] Read more.
In this paper, a guarded active-arm bridge for high-resistance standards with programmable two-channel source of DC voltage is described. Both channels of this source are controlled from a common reference voltage. This ensures a high stability of the voltage ratio of both source channels. The presented results of tests of this source show that its use in the active bridge is more advantageous than the use of the two independent DC voltage sources. The bridge allows high accuracy in the comparison of the high-resistance standards in 1:1 ratio. The current state of knowledge about active-arm bridges is presented, the basics of the bridge operation are given, the two-channel DC voltage source used in the bridge and its test results are described, the measurement process that does not require transposition of the compared resistance standards is described, sample measurement results, and a plan for further work are given. The bridge is used in the resistance standard calibration system at the Central Office of Measures (GUM), Poland, in the range from 100 MΩ to 100 TΩ. Full article
(This article belongs to the Special Issue Selected Papers from the 54th Inter-University Metrology Conference)
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23 pages, 8029 KiB  
Article
Doweled cross Laminated Timber (DCLT) Building Air Tightness and Energy Efficiency Measurements: Case Study in Poland
by Jadwiga Świrska-Perkowska, Anna Wicher, Sławomir Pochwała, Stanisław Anweiler and Michał Böhm
Energies 2022, 15(23), 9029; https://0-doi-org.brum.beds.ac.uk/10.3390/en15239029 - 29 Nov 2022
Viewed by 1783
Abstract
A contemporary challenge for the construction industry is to develop a technology based on natural building materials which at the same time provides high energy efficiency. This paper presents the results of an airtightness test and a thermal imaging study of a detached [...] Read more.
A contemporary challenge for the construction industry is to develop a technology based on natural building materials which at the same time provides high energy efficiency. This paper presents the results of an airtightness test and a thermal imaging study of a detached house built with technology using cross laminated dowelled timber panels. The thermal conductivity coefficients of the wood wool used to insulate the walls and ceiling of the building have also been measured, the linear heat transfer coefficients of the structural nodes have been numerically determined, and calculations have been made regarding the energy efficiency of the building. On the basis of the research, it was found that the air exchange rate in the analyzed building n50 is at the level of 4.77 h−1. Air leaks were also observed in the places of connection of longitudinal walls with the roof and at the junction of window frames with external walls. The experimentally determined thermal conductivity coefficient of the wood wool was ~10% higher than that declared by the manufacturer. Calculations for the energy performance certificate showed that an increase of ~10% in the thermal conductivity coefficient of the wood wool used to insulate the building results in a heating demand increase of 2.1%. It was also found that changing the value of the parameter n50 from 1.0 h−1 to 4.77 h−1 leads to a 40.1% increase in heat demand for heating the building. At the same time, the indicators for final energy demand EK and non-renewable primary energy demand EP increase by 18.1%. Full article
(This article belongs to the Special Issue Selected Papers from the 54th Inter-University Metrology Conference)
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21 pages, 5606 KiB  
Article
Analysis of the Spectral Sensitivity of Luxmeters and Light Sensors of Smartphones in Terms of Their Influence on the Results of Illuminance Measurements—Example Cases
by Przemyslaw Tabaka and Justyna Wtorkiewicz
Energies 2022, 15(16), 5847; https://0-doi-org.brum.beds.ac.uk/10.3390/en15165847 - 11 Aug 2022
Cited by 1 | Viewed by 1977
Abstract
The article presents spectral sensitivity curves of 22 typical luxmeters and 3 smartphones as a result of laboratory measurements. Based on the measurement data, errors in the spectral correction of the considered instruments and devices were calculated. Due to the fact that the [...] Read more.
The article presents spectral sensitivity curves of 22 typical luxmeters and 3 smartphones as a result of laboratory measurements. Based on the measurement data, errors in the spectral correction of the considered instruments and devices were calculated. Due to the fact that the value of the measured illuminance is influenced by the spectral characteristics of the radiation, in order to determine the spectral corrections coefficients, 10 light sources with different spectral distributions of radiation were taken into account. Spectral corrections factors were determined using two methods for all luxmeters and smartphones. This paper presents the relationship between the shape of the spectral sensitivity curves of a given luxmeter and the measured values of f′1 errors. Moreover, the limitations related to the use of spectral corrections in environmental measurements with the use of a luxmeter were demonstrated. Full article
(This article belongs to the Special Issue Selected Papers from the 54th Inter-University Metrology Conference)
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22 pages, 5755 KiB  
Article
Noninvasive Methods of Active Thermographic Investigation: Short Overview of Theoretical Foundations with an Example of Application
by Sławomir Gryś and Waldemar Minkina
Energies 2022, 15(13), 4865; https://0-doi-org.brum.beds.ac.uk/10.3390/en15134865 - 02 Jul 2022
Cited by 1 | Viewed by 1254
Abstract
The field of non-destructive testing using thermography (NDT—Non-Destructive Testing and NDE—Non Destructive Evaluation) was established in the 1960s as a competitive and complementary method to ultrasonic or X-ray testing. Non-destructive quality control of objects is essential in modern industry, especially in mass production. [...] Read more.
The field of non-destructive testing using thermography (NDT—Non-Destructive Testing and NDE—Non Destructive Evaluation) was established in the 1960s as a competitive and complementary method to ultrasonic or X-ray testing. Non-destructive quality control of objects is essential in modern industry, especially in mass production. It is an integral part of the quality control process. The reason for the introduction of non-destructive testing into diagnostic techniques were disasters and failures of various equipment and structures. Over the years, a division has been drawn between passive and active thermography. The aim of this publication is to present the theoretical basis of non-destructive testing with the use of active infrared thermography methods. It describes selected models of transient heat flow (thermal wave) in objects of various shapes and physical properties. They are the basis for understanding the changes in the surface temperature of the studied objects in time, which are the response to thermal excitation of different nature. An example of their effective application in engineering practice is the author’s software, in which the recorded time response is matched to the analytical solution, and on this basis detected anomalies are parameterized, detected by the fusion of various techniques of thermal image processing and analysis methods. Full article
(This article belongs to the Special Issue Selected Papers from the 54th Inter-University Metrology Conference)
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