Wyniki wyszukiwania - BazTech

1

Development of methods for predicting hydrate formation in gas storage facilities and measures for their prevention and elimination

Volovetskyi V. B., Doroshenko Ya. V., Matkivskyi S. V., Raiter P. M., Shchyrba O. M., Stetsiuk S. M., Protsiuk H. Ya.

Journal of Achievements in Materials and Manufacturing Engineering

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2023

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Vol. 117, nr 1

25--41

EN

Purpose: The purpose of this work is to study the processes of hydrate formation during the operation of wells and underground gas storage facilities. Development of a set of measures aimed at the prediction and timely prevention of hydrate formation in wells and technological equipment of gas storage facilities under different geological and technological conditions. Design/methodology/approach: The prediction of hydrate formation processes was carried out using a neural network that is a software product with weight factors calculated in MATLAB environment and the ability to adapt parameters of the network specified to updated and supplemented input data during its operation. So, within the MATLAB software environment, a software module of a two-layer artificial neural network with a random set of weight factors is created at the first stage. In the second stage, the neural network is trained using experimental field input/output data set, output data. In the third stage, an artificial neural network is used as a means of predicting hydrate formation with the ability to refine weight factors during its operation subject to obtaining additional updated data, as an input set, for modifying the coefficients and, accordingly, improving the algorithm for predicting of an artificial neural network. In the absence of new data for the additional training of an artificial neural network, it is used as a computing tool that, on the basis of input data about the current above-mentioned selected technological parameters of fluid in the pipeline, ensures the output values in the range from 0 to 1 (or from 0 to 100%), that indicates the probability of hydrates formation in the controlled section of the pipeline. Application of such an approach makes it possible to teach; additionally that is, to improve the neural network; therefore this means of predicting hydrate formations objectively increases reliability of results obtained in the process of predicting and functioning of the system. The authors of the work recommend to carry out an integrated approach to ensure clear control over the operation mode of wells and gas collection points. Findings: According to the results of experimental studies, the places of the most likely deposition of hydrates in underground gas storage facilities were identified, in particular, in the inside space of the flowline in places of accumulation of liquid contaminants (lowered pipeline sections) and an adjustable choke of the gas collection point. The available methods used to prevent and eliminate hydrate formation both in wells and at gas field equipment were analyzed. Such an analysis made it possible to put together a list of methods that are most appropriate for the conditions of gas storage facilities in Ukraine. The method of predicting hydrate formation in certain sections of pipelines based on algorithms of artificial neural networks is proposed. The developed methodology based on data on values of temperatures and pressures in certain sections of pipelines allows us to predict the beginning of the hydrate formation process at certain points with high accuracy and take appropriate measures. Research limitations/implications: To increase the efficiency of solving the problem of hydrate formation in gas storage facilities, it is expedient to introduce new approaches to timely predict complications, in particular, the use of neural networks and diverse measures. Practical implications: Implementation of the developed predicting methodology and methods and measures to prevent and eliminate hydrate formation in wells and technological equipment in underground gas storage facilities will increase the operation efficiency of underground gas storage facilities. Originality/value: The use of artificial intelligence to predict hydrate formations in flowlines of wells and technological equipment of underground gas storage facilities is proposed. Using this approach to predict and function the system as a whole ensures high reliability of the results obtained due to adaptation of the system to the specified control conditions.

2

Maszyny i aparaty przetwórstwa spożywczego w ujęciu systemowym

Dutkiewicz D., Słowiński B.

Postępy Techniki Przetwórstwa Spożywczego

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2015

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nr 2

138--144

PL

W nauczaniu inżynierii procesów przetwórstwa spożywczego, pracach badawczych i integrowaniu zasobów wiedzy, myślenie całościowe (holistyczne) określane, jako ujęcie systemowe, jest stosowane w nauce od połowy ubiegłego wieku. Staje się coraz bardziej powszechne. Wciąż jednak nie znajduje ono odpowiedniego do potrzeb i przynoszonych korzyści odzwierciedlenia w podręcznikach inżynierii przetwórstwa spożywczego. Przedmiotu, którego zakres obejmuje ponad 2 tysiące rodzajów maszyn i aparatów wyposażenia technologicznego kilkudziesięciu branż, przetwarzających wieleset gatunków surowca pochodzenia rolniczego. Celem artykułu jest przedstawienie autorskiej wizji, inspirowanej stosowaniem podejścia systemowego, związku właściwości surowców ze sposobami pracy urządzeń i wykorzystania, stworzonych przez nie możliwości podwyższenia poziomu integrowania wiedzy oraz efektywności działań w sferze dydaktyki w omawianej dziedzinie.

EN

In teaching the food processing engineering, research works and integrating stores of knowledge comprehensive thinking (holistic) determined as the system approach, applied in the learning from the half of the last century, is becoming increasingly common in our times more and more. Still however it isn’t finding the food processing suitable for needs and brought benefits of reflecting engineering in textbooks, of object which the scope includes beyond 2 thousand kinds of machines and apparatuses of technological equipping several dozen of branches, processing a lot set of species the raw material of the agricultural origin. Presenting the author’s vision is a purpose of the article, of using the possibility increasing the level of integrating the knowledge in discussed field and the effectiveness of action in the sphere of didactics, inspired with applying the system approach.

3

The signal connections in robot integrated manufacturing systems

Reclik D., Kost G., Świder J.

Journal of Achievements in Materials and Manufacturing Engineering

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2008

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Vol. 26, nr 1

89-96

EN

Purpose: The main goal of this paper is that, the robot integrated manufacturing systems are more popular and useful in the industry. Moreover, the communication in those systems might be realized by many different data exchange solutions. Using this kind of solution causes the data exchange incompatibility. This paper deals with different ways in informatics connection of all of the components in robot integrated manufacturing system. Design/methodology/approach: Incompatibility is a result of usage many different communication systems between components in lathe center. The way of mutual signal connections were the target of researches. Findings: As a result of scientific work, the universal and compatible informatics connection system of the robot lathe center was created. Research limitations/implications: The project of the data exchange system is confined to PROFIBUS DP lan. Practical implications: The result of the researches was developing a technical element choice procedure of the data exchange depending on transport means quantity and system composition in the robot lathe system. Originality/value: This is a brand new paper, which describes internal systems of data exchange in robot integrated manufacturing system in example of automatic lathe center.

4

The signal connections in robot integrated manufacturing systems

Reclik D., Kost G., Świder J.

Journal of Achievements in Materials and Manufacturing Engineering

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2007

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Vol. 23, nr 1

87-90

EN

Purpose: The main goal of this paper is that, the robot integrated manufacturing systems are more popular and useful in the industry. Moreover, the communication in those systems might be realized by many different data exchange solutions. Using this kind of solution causes the data exchange incompatibility. This paper deals with different ways in informatics connection of all of the components in robot integrated manufacturing system. Design/methodology/approach: Incompatibility is a result of usage many different communication systems between components in lathe center. The way of mutual signal connections were the target of researches. Findings: As a result of scientific work, the universal and compatible informatics connection system of the robot lathe center was created. Research limitations/implications: The project of the data exchange system is confined to PROFIBUS DP Ian. Practical implications: The result of the researches was developing a technical element choice procedure of the data exchange depending on transport means quantity and system composition in the robot lathe system. Originality/value: This is a brand new paper, which describes internal systems of data exchange in robot integrated manufacturing system in example of automatic lathe center.

5

Processing of soybean meal into concentrates and testing for Genetically Modified Organism (GMO)

Vindis P., Mursec B., Janzekovic M., Cus F.

Journal of Achievements in Materials and Manufacturing Engineering

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2007

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Vol. 20, nr 1-2

507-510

EN

Purpose: The purpose of the paper is to show how the soybean meal is processed into the feed concentrate and how the GMO content is tested when the soybean meal is accepted in the feed concentrate factory. Design/methodology/approach: After acceptance of the soybean meal the analysis for the protein and moisture content is made by the use of Inframatic. The average monthly sample is sent to an external laboratory for testing for GMO content. According to the regulations the GMO content must not exceed 0,9% and is determined by the PCR (polymeraze chain reaction) method. The soybean meal is processed into the feed concentrate by the use of hammer mill, feed mixer and pellet mill. Ten analyses for GMO content have been performed by establishing the influence of the origin on the GMO content; the average percentage of GMO in the soybean meal was 0,3%. Findings: In two cases the results of analyses of the soybean meal were negative, which means that the soybean meal did not contain any GMO; in eight cases the test was positive, but none exceeded the sill of 0,9%. Irrespective of the supplier or origin the average percentage of the GMO in soybean meal is approximately identical, i.e., 0,3%. Only the soybean meal, arriving from Brazil, has a smaller percentage of the GMO, i.e., 0,22%. It means that not the supplier, but only the origin has an influence on the percentage of the GMO in soybean meal. Research/limitations/implications: The research has been performed on soybean meal, arriving from Brazil and Hungary, where ten analyses for GMO content have been performed. Practical implications: On the average, the soybean meal coming from Hungary contains more GMO, i.e., 0,3%, than the soybean meal coming from Brazil, which contains 0,22%. Originality/value: The research showed that most soybean meal were genetically modified, but in no case the limit prescribed by the regulations, i.e., 0,9% was exceeded.

6

Manufacturing of mass-scale products from structural microalloyed steels in integrated production lines

Adamczyk J.

Journal of Achievements in Materials and Manufacturing Engineering

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2007

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Vol. 20, nr 1-2

399-402

EN

Purpose: Technical-economic aspects of the introduction of integrated technological lines for the production of metallurgical products are presented in the work. They have a special importance for microalloyed steels used in different branches of the industry. Design/methodology/approach: The analysis was carried out on a basis of requirements concerning hot-working of microalloyed steels with high mechanical properties produced by the use of the controlled rolling and thermo-mechanical processing. Findings: A modification of some well-known integrated lines consisting in the introduction of the cooling machine between roughing and finishing trains, instead of reheating machine gives a possibility to realize a controlled rolling. Moreover, using retention shields makes possible to manufacture the products by the thermo-mechanical processing. Research limitations/implications: There is a necessity to adjust technological parameters to precise controlling a course of material processes. Practical implications: Development of demands concerning integrated lines enabling to realize the controlled rolling and thermo-mechanical processing. Originality/value: Manufacturing mass-scale products from microalloyed steels in integrated energy-saving lines.

7

Analysis of quality of sowing by pneumatic sowing machines for sugar beet

Mursec B., Vindis P., Janzekovic M., Cus F., Brus M.

Journal of Achievements in Materials and Manufacturing Engineering

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2007

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Vol. 22, nr 1

85-88

EN

Purpose: The paper presents two sowing machines for interval sowing, differing in the mode of operation. The pneumatic vacuum sowing machine OLT and the pneumatic pressure sowing machine Aeromat - Becker for sowing sugar beet are compared. We were interested in adequacy of sowing at different working speeds. The purpose of the paper is to find out the optimum working speed for the individual sowing machine. Design/methodology/approach: The measurements were performed with two sowing machines which are most widely used in Slovenia; the sowing machines were tested in completely identical conditions at different speed of sowing. Findings: The parameters such as working efficiency, depth of sowing, inter-row distance and distance between seeds in the sowing row were measured and calculated. Research limitations/implications: Cultivation of sugar beet depends primarily on expert and technically correct sowing. Distance between seeds in the sowing row must enable the plants to have optimum conditions for their growth and development. For successful sowing it is necessary to know adequacy of the soil for sowing, technical properties of the sowing machine and biotechnical characteristics of the seed. Practical implications: Sowing machines and expertly performed sowing are of great importance for cultivation of sugar beet. The principal aim of the paper is to establish whether the higher working speed influences the quality of sowing. The test were aimed at defining the most suitable sowing speed for both sowing machines on the basis of measured data. Cultivation of sugar beet requires much money invested and work performed per unit of area. It is very important for the producers to be well familiarized with all agro - technical measures. Originality/value: Taking into account all measured parameters the optimum sowing speed of the pneumatic vacuum machine OLT is 8 km/h and the optimum sowing speed of the pneumatic pressure sowing machine Aeromat - Becker is 10 km/h.

8

Accuracy of calculation of body mass on the basis of measurements

Janzekovic M., Brus M., Mursec B., Cus F.

Journal of Achievements in Materials and Manufacturing Engineering

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2007

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Vol. 23, nr 2

47-50

EN

Purpose: The results of measurements shows that the chest size is not enough accurate to establish the body mass of living animals in all development stages, therefore additional measuring of the trunk length was used to increase reliability of the estimate. Design/methodology/approach: During the test 30 fattened animals were considered and were weighed by electronic weighing device EC 2000. The trunk length (d) and the chest size (o) were measured simultaneously. The body mass (T) was calculated according to the equation: T = o x d / 50. By the statistical package SPSS 12.01. for Windows the basic statistics for the studied properties was calculated. By the t-test the calculated and the actually weighed body masses of animals were compared. Findings: On the young fattened cattle it was established that with 240 - 290 kg body mass, when the body form is most rectangular, the accuracy of calculation on the basis of measured body parts, is the greatest. The percentage difference between weighed and calculated body mass is only 0.06%, which is very accurate. Research limitations/implications: For wide applicability of measurement results on the living animals in all stages of growth it would be necessary in the equation for the calculation to include also the trunk size in the middle of the body and the size in the rear part. Practical implications: On small farms where the cost of purchase of the digital weighing device would be too great a burden, thus, measuring of the chest size at 3 cm behind the elbow joint, in the middle of the trunk (behind the last rib), and measuring of the size in the rear part of the body and the trunk length from the middle of the withers to the tail root are more appropriate. Originality/value: The animals which phenotypically feature cylindrical shape in the period of growth can be measured most simply in the front middle and rear part of the body and, then, their body mass can be determined very accurately on the basis of the data obtained.

9

Technologiczne wyposażenie mechatronicznych systemów do montażu połączeń.

Nikołajew W., Sztrikow B.

Technologia i Automatyzacja Montażu

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2005

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nr 1

20-23

10

Wyposażenie technologiczne do budowy mostu TAPP przez Wisłę koło Torunia

Jendrzejek S.

Inżynieria i Budownictwo

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1999

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R. 55, nr 3

137-140

PL

Omówiono urządzenia do nasuwania podłużnego oraz do betonowania wspornikowego, a także do kształtowania geometrii ustroju nośnego, zastosowane podczas realizacji mostu autostradowego przez Wisłę.

EN

The technical equipment served for horizontal shifting and concreting of centilevered bridge on Transeuropean highway across Vistula River near Torun has been described.

11

Geodezichnijj monihtoring deformacihjj ihnzhenernikh sporud ih tekhnologihchnogo ustatkuvannja gazokompresornikh stancihjj

Perovich L., Dutchin M.

Zeszyty Naukowe Politechniki Rzeszowskiej. Budownictwo i Inżynieria Środowiska

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1998

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z. 29 [166], T.2

377-380