https://mpky.nung.edu.ua/index.php/mpky/issue/feedMETHODS AND DEVICES OF QUALITY CONTROL2023-11-27T00:00:00+02:00Олійник А. Пpma@nung.edu.uaOpen Journal Systems<p class="rteleft">Subjects: Subjects of the “Quality Control Tools and Techniques” journal include the following sections:<br>- methods and means of non-destructive testing;<br>- measurement of physical and mechanics parameters of substances;<br>- methods and devices for measuring flows of liquid and gaseous phases;<br>- methods and means of controlling technological parameters,</p> <p class="rteleft">- automation and computer-integrated non-destructive testing technologies,</p> <p class="rteleft">- mathematical modelling for the undestroyed control problems.</p> <p>The “ Quality Control Tools and Techniques ” journal publishes review and research articles that are dedicated to these subjects (but are not limited only by them).</p>https://mpky.nung.edu.ua/index.php/mpky/article/view/615DETERMINATION OF INFORMATIVE PARAMETERS AND JUSTIFICATION OF THE RULE FOR THE THRESHOLD IDENTIFICATION OF DEFECTS IN THERMAL NON-DESTRUCTIVE CONTROL2023-10-19T09:07:10+03:00O. H. Bondarenkousndt@ukr.net<p>The analysis of modern foreign and domestic research and publications related to the application of the rule of threshold identification of defects in the methods of non-destructive testing of various products and industrial objects was carried out. It is shown that the rule for different control methods can be based on its own threshold value of the informative signal from discontinuities, which divides the measured values of the signals obtained from them into correspondence with defect-free and defective zones of the product or object of control. The methods of defect identification in active and passive methods of non-destructive control of products and control objects are analyzed, in particular, with the application of the rule of threshold identification of defects in active thermal control of industrial objects. By comparing the characteristics of the methods of active and passive thermal imaging thermography, the main informative parameters used in the mentioned methods of non-destructive thermal control when detecting discontinuities in products and control objects based on the histograms of anomalies of the temperature field on their external surfaces by the thermal imaging method were determined. It is shown that the determination of product defects during active thermography requires the fixation of two additional informative parameters related to the time of optimal observation of the temperature drop during thermography of the surface of the product and the selection of the frequency of recording histograms to accumulate the necessary number of them before reaching the optimal time. The rule for the threshold identification of defects in industrial chimneys is substantiated, which is based on a defined set of received signal amplitudes from the histograms of anomalies of the temperature field on the selected section of the chimney and determination of the threshold value of the signal by dividing them into two classes.</p>2023-11-27T00:00:00+02:00Copyright (c) 2023 METHODS AND DEVICES OF QUALITY CONTROLhttps://mpky.nung.edu.ua/index.php/mpky/article/view/616OPTIMIZATION OF DEFECT CONTROL USING PLATE DIRECT WAVES AND ALGORITHMS2023-10-26T10:00:36+03:00І. Z. Lyutakihorlt@gmail.comZ. P. Lyutakihorlt@gmail.com<p>The study is dedicated to the examination and optimization of deformation control when using plate-guided waves. The authors emphasize the significance of this research in the context of the modern manufacturing process, where there's a continuous demand for high-quality products, and technological advancements necessitate ongoing optimization. The primary objective of the research is to identify key parameters that influence deformation processes. To achieve this, the authors conduct an in-depth analysis using a mathematical description. This mathematical representation aids in better understanding the dynamics of the processes and the interplay of various factors that affect defect detection in the material of the inspected object. A mathematical description of the parameters of the ultrasonic primary transducer is provided, with a detailed analysis of manufacturing materials and application methods. Considerable attention is given to the analysis of the acoustic field reflected from the boundary of the medium propagation-material interface – defect from a practical standpoint, specifically how to optimally detect a defect and obtain its metric indicators. The article also focuses on the need to develop new data processing algorithms. This is crucial to ensure measurement accuracy and the adequacy of the obtained data. Graphs and illustrations presented in the article offer a clear representation of the studied processes and their peculiarities. There's also a graph illustrating defect detection in a pipe wall using the mathematical framework discussed in the article. The authors stress that refining technological processes is a key element in enhancing production efficiency. Optimizing defect control processes will help reduce production costs, improve product quality, and ensure their longevity. In conclusion, the article is a valuable contribution to the study and optimization of defect control in metals, especially pipelines. The authors' research holds significant practical importance for manufacturers, engineers, and scientists working in the fields of non-destructive testing, material science, and material processing technologies.</p>2023-11-27T00:00:00+02:00Copyright (c) 2023 METHODS AND DEVICES OF QUALITY CONTROLhttps://mpky.nung.edu.ua/index.php/mpky/article/view/620ANALYSIS AND APPLICATION OF METHODS FOR DETERMINING INTERCALIBRATION INTERVALS OF MEASURING EQUIPMENT2023-11-14T10:33:27+02:00T. V. Kepeshchukktv.metr77@gmail.comL. B. Pastushchunktv.metr77@gmail.comB. S. Nezamaiboris_may@ukr.net<p>In this paper noted that one of the factors that ensures confidence in measurement results and determines metrological traceability is the calibration of measuring equipment (standards, measuring equipment, auxiliary equipment), which is carried out at certain time intervals - the calibration intervals. The calibration intervals is the period of time or time elapsed between two successive calibrations of the measuring equipment. Determining the maximum allowable period that should elapse between two periodic calibrations of measuring equipment is very important in maintaining the ability of calibration and testing laboratories to obtain reliable and metrologically traceable measurement results. The necessity and term of re-calibration of measuring equipment used in calibration and testing laboratories is determined by their owner (user). At the same time, the validity period of the calibration certificate is not specified (except for cases when, with the consent of the applicant for calibration work, the recommended term of the next calibration is specified in the certificate). For working standards that are used during the calibration of measuring equipment operating and used in the field of legally regulated metrology, the inter-calibration intervals are established in accordance with the Procedure for calibration of secondary and working standards, approved by the order of the Ministry of Development of Ukraine dated 10.08.2020 No. 1518. It is noted that the following methods can be used to determine the calibration interval of measuring equipment: automatic adjustment or "stairs"; control cards; work time; checking during operation or "black box" testing; other statistical approaches. Information on determining the primary calibration interval for measuring equipment is given, as well as the given methods of its determination are considered. Based on practical experience, when determining the inter-calibration interval, the method of automatic adjustment or "steps" is often used, in particular for measures of physical quantities. Calculations were made and the results of determining the calibration intervals for the measure of the length of the type IV bar were given.</p>2023-11-27T00:00:00+02:00Copyright (c) 2023 METHODS AND DEVICES OF QUALITY CONTROLhttps://mpky.nung.edu.ua/index.php/mpky/article/view/618SIMULATION AND EVALUATION THROUGH SOFTWARE IMPLEMENTATION OF STATISTICAL CHARACTERISTICS OF PRESSURE FLUCTUATIONS AND DRILLING MUD LOSS2023-11-10T11:24:32+02:00O. V. Kuchmustenkokafatp@ukr.netM. V. Shavranskyikafatp@ukr.netG. D. Matejikkafatp@ukr.netB. S. Nezamaikafatp@ukr.net<p><em>The oil and gas industry in Ukraine played a crucial role in the national economy by meeting the country's energy and economic needs. The drilling process was a fundamental component of this sector. The current state of the oil and gas industry was influenced by the high importance of natural resources, which were essential for the country's energy security. However, it also faced the challenges of depleting reserves and increasing drilling depths, requiring the implementation of new technologies and methods to ensure high productivity and safety.</em></p> <p><em>The purpose of this work was to develop a method for identifying the dynamic characteristics of the drilling process for the purpose of assessing the properties of the control object. The research focused on the technological process of drilling, which was the subject of this work. To achieve the specified goal, modern methods for identifying the dynamic characteristics of the drilling process for the purpose of evaluating the properties of the control object were analyzed. This analysis required a thorough review of existing methods and their further adaptation to the specific drilling conditions. An analysis of the statistical characteristics of pressure and drilling fluid flow fluctuations was also conducted. Studying these parameters during the drilling process was important to understand their variations and interrelationships. Choosing a single method for discrete measurement of pressure and drilling fluid flow allowed for selecting the best equipment and data collection methods. To ensure the efficiency of the drilling process and the rational use of resources, calculations for the optimal productivity of drilling pumps were performed.</em></p> <p><em>This article aimed to improve the drilling process through the development of a new method for identifying dynamic characteristics and assessing the properties of the control object, which could have a positive impact on Ukraine's oil and gas industry and contribute to its development.</em></p>2023-11-27T00:00:00+02:00Copyright (c) 2023 METHODS AND DEVICES OF QUALITY CONTROLhttps://mpky.nung.edu.ua/index.php/mpky/article/view/613THE METHOD OF CONTROLLING THE CAVITATION CHARACTERISTICS OF A DRILL JET PUMP2023-11-01T18:12:40+02:00D. O. Panevnykden.panevnik@gmail.com<p><em>The working process of the jet pump is characterized by an increased probability of cavitation in its flowing part, which significantly reduces the efficiency and limits the spread of oil and gas ejection technologies. Based on the use of the equation of energy conservation and flow continuity, a methodology for determining the limiting operating parameters of a downhole jet pump that correspond to cavitation-free operation of the ejection system under the condition of relative rotation of the working medium has been developed. The design scheme of the pressure ejection system is represented by linear hydraulic resistances of the drill string and annulus and local resistances in the form of the working nozzle of the jet pump and the washing nozzles of the bit. Using the system of Bernoulli equations written for the characteristic cross-sections of the ejection system, the correspondence between the minimum pressure value in the flowing part of the jet pump, the depth of the well, the flow rate and the diameter of the working nozzle was established. The relative rotation of the mixed flows was taken into account using the compression ratio of the working flow, the value of which depends on the parameters of the circulation movement of the mixed flows. The minimum pressure value in the flowing part of the jet pump depends directly on the depth of the well and the working flow rate and inversely on the diameter of the working nozzle. The cavitation characteristic of the ejection system is presented in the form of the dependence of the limiting operating parameters on the value of the angle of inclination of the guide elements installed in the flow part of the jet pump. With an increase in the angle of inclination of the guide elements, the minimum diameter of the working nozzle of the jet pump increases. The dependences of the maximum permissible flow rate and the minimum permissible depth of pump placement in the well are characterized by an extreme nonlinear dependence on the angle of inclination of the guide elements.</em></p>2023-11-27T00:00:00+02:00Copyright (c) 2023 METHODS AND DEVICES OF QUALITY CONTROLhttps://mpky.nung.edu.ua/index.php/mpky/article/view/619SIMULATION OF THE INFLUENCE OF HYDROGEN ON THE COMPRESSIBILITY COEFFICIENT OF GAS-HYDROGEN MIXTURES2023-11-11T08:58:43+02:00O. Ye. Serediukmivt@nung.edu.uaV. V. Malisevuchmivt@nung.edu.uaD. O. Serediukmivt@nung.edu.uaV. B. Shevchukmivt@nung.edu.uaR. T. Manuliakmivt@nung.edu.ua<p><em>The relevance of determining the compressibility coefficient of gas-hydrogen mixtures is considered. The expediency of developing a practical algorithm for calculating the compressibility coefficient of natural gas with different hydrogen content is substantiated. The essence of the developed three methods for determining the compressibility coefficient of gas-hydrogen mixtures when specifying the volume content of hydrogen and the component composition of natural gas with the content of carbon dioxide and nitrogen is described.</em> <em>The first method is based on the use of the method of composition of the components of the gas-hydrogen mixture using the basic method of calculating the compressibility coefficient NX-19 mod. The second method involves the use of a methodology based on the use of complex coefficients for reducing parameters of the working environment, which are used in the design of variable pressure drop flowmeters. The third method involves the use of the concept of component evaluation of gas composition.</em> <em>Each of the methods involves taking into account the volume content of hydrogen as a component of the gas-hydrogen mixture.</em> <em>Algorithms of the developed three methods for determining the compressibility coefficient of gas-hydrogen mixtures and numerical simulation of the change in the compressibility coefficient of gas-hydrogen mixtures with a hydrogen content of up to 30% at an absolute gas pressure of 0.3 MPa and a temperature of 15 °C are presented.</em> <em>A comparative analysis of three calculation algorithms was carried out.</em> <em>The regularities of changes in the compressibility coefficient of gas-hydrogen mixtures have been established, which relate to the growth of this coefficient by about 0.4-0.5% when the hydrogen content increases to 30% of its value in anhydrous natural gas.</em> <em>It is shown that the difference between the three proposed methods of calculating the compressibility coefficient does not exceed 0.2%, which means that each of these methods can be considered suitable for practical use.</em></p>2023-11-27T00:00:00+02:00Copyright (c) 2023 METHODS AND DEVICES OF QUALITY CONTROLhttps://mpky.nung.edu.ua/index.php/mpky/article/view/617ASSESSMENT OF THE POSSIBILITY OF USING ULTRASONIC FLOW METERS FOR FIXING THE CONSUMPTION OF GAS-HYDRO MIXTURES2023-11-14T16:54:50+02:00N.-A. Sorokanazarii-andrii.soroka@nung.edu.uaM. O. Karpashuniversity@ukd.edu.uaV. S. Tsykhnazarii-andrii.soroka@nung.edu.ua<p>The article presents an extremely topical issue of our time, which is the need to develop hydrogen technologies in our country, as set out in the adopted Energy Strategy until 2050. The publication emphasizes the importance of choosing the optimal technology for transporting large volumes of hydrogen over long distances, which can be implemented on the basis of the existing pipeline system. The necessity of high-quality and efficient metering of gas-hydrogen mixtures with different hydrogen content is proved. An analysis of modern technologies that can be used for such needs, based on existing research and publications in this area in developed countries of the European continent, is carried out. The possibility of using various types of flow meters in the residential, public, industrial and transport sectors is considered and it is established that ultrasonic meters are the most suitable for use in each of these sectors of the national economy. The experience of using different measuring technologies for hydrogen metering by NewGasMet project partners was also analyzed and the highest percentage of ultrasonic metering was confirmed. Based on the general analysis of existing technologies, ultrasonic flowmeters were selected as the most suitable for the task of recording the flow of gas-hydrogen mixtures. Several types of ultrasonic flowmeters from well-known manufacturers are considered in detail as an example, analyzing their features of functioning, placement on the measuring sites, and taking into account their main characteristics. As a result of the detailed analysis of a large number of ultrasonic flowmeters, a list of basic equipment has been formed for which metrological characteristics are normalized and indicated in the available technological documentation, and which can be further considered in order to improve their measurement accuracy, taking into account the compression ratio of the measuring medium, which is the next task of the scientific research.</p>2023-11-27T00:00:00+02:00Copyright (c) 2023 METHODS AND DEVICES OF QUALITY CONTROL