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Tytuł:
Analiza rozwoju ukladow mechatronicznych stosowanych w ciagnikach i maszynach rolniczych
Autorzy:
Jasinski, B
Powiązania:
https://bibliotekanauki.pl/articles/803336.pdf
Data publikacji:
1995
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
maszyny rolnicze
mechatronika rolnicza
komputery pokladowe
technika rolnicza
ciagniki rolnicze
Opis:
Przedstawiono tendencje rozwoju układów mechatronicznych stosowanych w ciągnikach i maszynach rolniczych. Omówiono własne badania dotyczące konstrukcji i oprogramowania uniwersalnego rolniczego komputera pokładowego.
Trends in development of mechatronic system for automatic control of tractors and agricultural machines were discussed. Authors’ own research works on designing of universal board computer and its software were described. As a result of research the prototype of Polish board computer was developed in which SAB 80(C) 535 microprocessor and graphical liquid cristal display (LCD) were incorporated. Also the algorithm and programme for monitoring Bizon combine harvester were elaborated. After practical field tests and verification of test results the foredesign was prepared for series manufacturing of board computer in modified version.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 1995, 423; 261-268
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Czujniki dwutlenku węgla - elektrochemiczne czujniki ze stałym elektrolitem
Carbon dioxide sensors - electrochemical sensors with solid state electrolote
Autorzy:
Jasiński, P.
Chachulski, B.
Nowakowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/151513.pdf
Data publikacji:
1999
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Opis:
W pracy omówiono elektrochemiczne czujniki węgla ze stałym elektrolitem. Opisano aktualne tendencje badań i rozwiązań czujników potencjometrycznych, amperometrycznych oraz czujników opartych o kinetyke reakcji chemicznej. Przedstawiono również technologie, które są użyte do budowy czujników.
In this paper solid state electrochemical carbon dioxide sensors are presented. New tendencies of investigations and design of potentiometric and amperommetric sensors are shown. Also a new method of measurements based on kinetics of chemical reaction is described. Examples of sensors prepared in tipical ceramic technology and thin and thick film technology are presented.
Źródło:
Pomiary Automatyka Kontrola; 1999, R. 45, nr 10, 10; 22-25
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza numeryczna frezu czaszowego
Numerical analysis of the bowl cutter
Autorzy:
Lacki, P.
Jasiński, J.
Jeziorski, L.
Lubas, M.
Szota, M.
Stodolnik, B.
Powiązania:
https://bibliotekanauki.pl/articles/256923.pdf
Data publikacji:
2006
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Eksploatacji - Państwowy Instytut Badawczy
Tematy:
metoda elementów skończonych
MES (metoda elementów skończonych)
frez czaszowy
optymalizacja
narzędzia medyczne
numerical analysis
bowl cutter
finite element method
optimization
medical instruments
Opis:
Analizę numeryczną przeprowadzono z użyciem programu ADINA System, opartego na Metodzie Elementów Skończonych (MES) [1, 2]. W pracy omówiono zasadnicze problemy konstrukcyjne, występujace przy projektowaniu frezu czaszowego. Przy projektowaniu uwzględniono ograniczenia co do wyboru gatunku stali odpornej na korozję i jej grubości zapewniającej odpowiednią wytrzymałość. W pracy zaprezentowano wyniki analizy numerycznej frezu czaszowego dla parametrów funkcjonalnych spełniających normy serii ISO 13402:1995. W pracy pokazano wyniki symulacji numerycznej frezu czaszowego pod obciążeniem w postaci siły skupionej przyłożonej na ostrzach roboczych. Zaprezentowano mapy rozkładu naprężeń zredukowanych na powierzchni narzędzia. W postaci wykresu biegunowego przedstawiono rozmieszczenie ostrzy skrawajacych i otworów odprowadzajacych wióry kostne. Scharakteryzowano właściwości stali odpornej na korozję, z której został wykonany frez. Na podstawie opracowanej geometrii frezu i przyjętego gatunku stali, z której wykonano frez, podano wytyczne co do obróbki cieplnej.
A numerical analysis was carried out with the ADINA System basing on the finite element method (FEM) [L. 1, 2]. In the paper fundamental construction problems occurring during the design process of the bowl cutter has been discussed. Some limitations resulting from the special working conditions of the bowl cutter were taken into consideration. The iteration procedures in order to optimise the basic construction parameters of the bowl cutter were used. In the paper the numerical simulation results of the bowl cutter being load are presented. Residual stress distribution on the tool surface are presented. A position of the cutting edges and holes carrying away the bone chips is shown as a polar diagram. Mechanical properties of the stainless steel, from which the bowl cutter was made, are given. Basing on the geometry and material properties the instructions of heat treatment of the bowl cutter are given.
Źródło:
Problemy Eksploatacji; 2006, 3; 31-38
1232-9312
Pojawia się w:
Problemy Eksploatacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chemical Interaction between Perovskite $La_{0.6}Sr_{0.4}FeO_3$ and Super-Ionic $Zr_{0.84}Y_{0.16}O_x$
Autorzy:
Gazda, M.
Kusz, B.
Płończak, P.
Molin, S.
Jasinski, P.
Powiązania:
https://bibliotekanauki.pl/articles/1812289.pdf
Data publikacji:
2008-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.-t
81.15.-z
82.47.Ed
Opis:
Perovskites are materials of very versatile properties. They may be used in various ways and structures. In this work the results of investigation of the $Zr_{0.84}Y_{0.16}O_x$ electrolyte on $La_{0.6}Sr_{0.4}FeO_3$ perovskite support are presented. The perovskite support was fabricated by iso-axially die-pressing of $La_{0.6}Sr_{0.4}FeO_3$ powders and sintering at 1150°C. The $Zr_{0.84}Y_{0.16}O_x$ layer was deposited on $La_{0.6}Sr_{0.4}FeO_3$ by a combination of colloidal suspension and polymer precursor methods. In this way the dense electrolyte layer was prepared at as low temperature as 400°C. This method may be also useful for high-$T_c$ superconductor layers deposition. The chemical interaction between the electrolyte layer and perovskite support was investigated by X-ray diffraction. It was shown that no reaction occurs between cathode and electrolyte until 900°C. Above 1200°C, parameters of the $La_{0.6}Sr_{0.4}FeO_3$ unit cell increase. It suggests that the reaction between $Zr_{0.84}Y_{0.16}O_x$ and $La_{0.6}Sr_{0.4}FeO_3$ is accompanied by substitutional changes in the $La_{0.6}Sr_{0.4}FeO_3$.
Źródło:
Acta Physica Polonica A; 2008, 114, 1; 135-141
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polimerowe czujniki wilgotności na bazie polietylenoiminy
Investigation of polymer humidity sensors based on polyethyleneimine
Autorzy:
Jasiński, G.
Chachulski, B.
Jasiński, P.
Nowakowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/153812.pdf
Data publikacji:
2008
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
czujnik wilgotności
polietylenoimina
sieciowanie polimerów
pomiary impedancji
humidity sensor
polyethyleneimine
cross-linking of polymers
impedance measurements
Opis:
Przedstawiono wyniki badań nad polimerowymi czujnikami wilgotności na bazie polietylenoiminy (PEI). PEI jest rozpuszczalną w wodzie poliaminą. Praktyczne wykorzystanie PEI możliwe jest po ograniczeniu jej rozpuszczalności w wodzie. W pracy opisano metody chemicznej modyfikacji filmu polimerowego, jak również stosowane rozwiązania konstrukcyjne, mające na celu poprawę trwałości i właściwości metrologicznych czujników wilgotności. Główną metodą określania parametrów czujników jest pomiar ich widm impedancyjnych.
Properties of polymer humidity sensors based on polyethyleneimine (PEI) are presented. PEI is a water-soluble polyamine. Water resistance improvement is required for a practical usage of this material. Influence of various polymeric film chemical modification methods, as well as various sensor construction improvements on the sensor stability, durability and performance has been investigated. Basic sensors properties are characterised by impedance spectroscopy.
Źródło:
Pomiary Automatyka Kontrola; 2008, R. 54, nr 3, 3; 106-109
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Materials for Reformer Furnace Tubes. History of evolution
Autorzy:
Garbiak, M.
Jasiński, W.
Piekarski, B.
Powiązania:
https://bibliotekanauki.pl/articles/380600.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technology
innovative foundry material
damage
reformer furnace tubes
Ni-Cr austenitic cast steel
innowacyjna technologia odlewnicza
innowacyjny materiał odlewniczy
uszkodzenie
piec rurowy
staliwo austenityczne
Opis:
The paper discusses progress that has been made over the past sixty years in increasing the service life of centrifugally cast, creepresistant tubes operating in reformer furnaces. Attention was mainly focused on the principles of selection of the chemical composition of castings to improve their creep behaviour. The reasons accounting for withdrawal of tubes from service were indicated. Examples of chemical composition and mechanical properties obtained in creep-resistant Ni-Cr cast steel used by the leading European tube manufacturers were stated. Trends in current research aiming at further improvement of the tube performance characteristics were mentioned.
Źródło:
Archives of Foundry Engineering; 2011, 11, 2 spec.; 47-52
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamics of Protein Elements of Hybrid Nanostructures - Molecular Dynamics Simulations of Light Harvesting Peridinin-Chlorophyll a-Protein Model
Autorzy:
Jasiński, A.
Mikulska, K.
Krajnik, B.
Mackowski, S.
Nowak, W.
Powiązania:
https://bibliotekanauki.pl/articles/1419508.pdf
Data publikacji:
2012-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
87.10.Tf
87.15.-v
Opis:
Hybrid nanostructures are often composed of inorganic parts and "biological" ones. Optimized through million years of evolution light harvesting proteins are hard to mimic synthetically. Promising strategy in search for efficient solar cells is an attachment of selected natural protein systems to inorganic quantum dots. Such experimental hybrid structures should have improved charge separation properties. Among the most promising proteins is peridinin-chlorophyll-protein from Amphidinium carterae (PCP). It has a wide absorption spectrum (420-550 nm), optimized for sunlight. The dynamics of this protein, used in modern nanotechnology has been not addressed yet. In this work we present results of PCP computer modeling using a well established molecular dynamics methodology. The CHARMM27 force field parameters were prepared for this protein and all chromophore components. The system was embedded in a box of water, with proper counter ions, and a number of 10 ns molecular dynamics simulations were run using the NAMD code. It has been found that peridinine chromophores exhibit substantial orientational flexibility but a pair Per612 and Per613 is more rigid than the remaining two carotenoids. Orientation and dynamics of absorption and emission electric dipole moments have been also analyzed. Apparently, the architecture of PCP is not optimized for efficient Per-Chl a energy transfer by the Förster mechanism. Several practical issues related to molecular dynamics simulation of similar hybrid nanostructures are discussed.
Źródło:
Acta Physica Polonica A; 2012, 122, 2; 284-288
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental Investigation of Low Power Microwave Microplasma Source
Autorzy:
Czylkowski, D.
Hrycak, B.
Jasiński, M.
Mizeraczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/1198978.pdf
Data publikacji:
2014-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
52.50.Dg
52.70.Ds
52.70.Kz
52.80.Pi
Opis:
The aim of this paper is to present a novel microwave microplasma source generated in different gases at atmospheric pressure. The design, rule of operation and experimental investigations of the new microwave microplasma source are described. The main advantage of the presented microwave microplasma source is its small size, simplicity, and low cost of construction and operation. The microplasma has a form of a small plasma jet of dimensions of a few mm, depending on the kind of gas, gas flow rate, and absorbed microwave power. Presented in this paper results of experimental investigations were obtained with an atmospheric pressure argon, krypton, nitrogen, and air microplasma, sustained by microwaves of standard frequency of 2.45 GHz. The absorbed microwave power was up to 70 W. The gas flow rate was from 2 to 25 l/min. The miniature size, simplicity of the source and stability of the microplasma allow to conclude that the presented new microwave microplasma source can find practical applications in various fields.
Źródło:
Acta Physica Polonica A; 2014, 125, 6; 1323-1325
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spectroscopic Study of $CO_2$ Plasma in Microwave Source Designed for Hydrogen Production via Hydrocarbons Decomposition
Autorzy:
Hrycak, B.
Jasiński, M.
Mizeraczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/1366177.pdf
Data publikacji:
2014-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
52.25.Os
52.50.Dg
52.70.Kz
52.80.Pi
Opis:
In this paper, results of spectroscopic study of microwave (2.45 GHz) plasma at atmospheric pressure and high $CO_2$ flow rate are presented. The plasma was generated by waveguide-supplied nozzleless cylindrical type microwave plasma source. Working gas flow rate and microwave absorbed power varied from 50 up to 150 l/min and from 1 up to 5.5 kW, respectively. The emission spectra in the range of 300-600 nm were recorded. The rotational and vibrational temperatures of $C_2$ molecules, as well as the rotational temperature of OH radicals were determined by comparing the measured and simulated spectra. The plasma gas temperature inferred from rotational temperature of heavy species ranged from 4000 to 6000 K. It depended on location in plasma, microwave absorbed power and working gas flow rate. The presented microwave plasma source can be used in various gas processing applications.
Źródło:
Acta Physica Polonica A; 2014, 125, 6; 1326-1328
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anion alkoksyallenowy w syntezie związków naturalnych i ich analogów
Alkoxyallene anion in the synthesis of natural products and their analogues
Autorzy:
Busiak, B.
Utecht, G.
Jasiński, M.
Powiązania:
https://bibliotekanauki.pl/articles/172377.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Chemiczne
Tematy:
alkoksyalleny
addycja nukleofilowa
synteza organiczna
związki naturalne
związki heterocykliczne
alkoxyallenes
nucleophilic addition
organic synthesis
natural products
heterocycles
Opis:
Among diverse systems containing multiple bonds, cumulenes are recognized as the most reactive derivatives towards both nucleophilic and electrophilic agents, and for this reason, they are considered as important class of substrates for organic synthesis. Over the last three decades alkoxyallenes have been demonstrated as highly useful C3-building blocks for the construction of numerous N-, O-, and S-containing heterocycles, including enantiomerically pure compounds. Special attention has been paid to lithiated alkoxyallenes as suitable nucleophiles for the reactions with alkyl halides, strained heterocycles, carbonyl compounds and their derivatives. The presence of the allene unit in the initially formed adducts opens up several possibilities in the preparation of more complex systems. In this review, selected applications of lithiated alkoxyallenes in the synthesis of natural products and their analogues are discussed.
Źródło:
Wiadomości Chemiczne; 2016, 70, 1-2; 3-23
0043-5104
2300-0295
Pojawia się w:
Wiadomości Chemiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Differing attitudes for various population groups towards homeless people
Autorzy:
Krajewska-Kułak, E.
Wejda, U.
Kułak-Bejda, A.
Łukaszuk, C.
Repka, B.
Guzowski, A.
Cybulski, M.
Stelcer, B.
Jasiński, M.
Powiązania:
https://bibliotekanauki.pl/articles/1917758.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
Homeless people
youth
attitudes
Opis:
Introduction: People who are homeless are most often unable to acquire and maintain regular, safe, secure, and adequate housing, or they lack a “fixed, regular, and adequate night-time residence”. Purpose: To assess the attitude of secondaryschool students, high-school students, university students, and working adults towards homeless people. Materials and methods: A survey of 420 randomly selected middle school students (n=120), high school students (n=100), university students (n=100), and working adults (n=100) was conducted. Nearly half of the participants reported a fear of homeless people. Results: According to the majority of respondents, a homeless person collects scrap metal and waste paper, and also begs. The first words that come to mind when a majority of people think of the homeless were: poor, unhappy, dirty, lonely, and smelly. The participants reported the main reasons for homelessness to be: joblessness, family problems, alcohol, helplessness, and avoiding work. The majority of respondents argued that social and legal problems are the main reasons that it is difficult for homeless people to extricate themselves from their situation. The groups surveyed had a variety of opinions about homelessness. According to most respondents, a homeless person is a poor, miserable, lonely, childless man with a vocational education who begs, collects scrap metal and waste paper, and is also usually dirty and smelly. Conclusions: In the survey groups, respondents’ opinions about homelessness varied.
Źródło:
Progress in Health Sciences; 2016, 6(1); 57-62
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Medical students’ perceptions of people with disabilities
Autorzy:
Guzowski, A.
Kułak-Bejda, A.
Stelcer, B.
Jasiński, M.
Łukaszuk, C.R.
Cybulski, M.
Kułak, W.
Powiązania:
https://bibliotekanauki.pl/articles/1918400.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
Medical students
attitudes
people with disabilities
life satisfaction
empathy
Opis:
Introduction: Little is known about associations of attitudes of medical students towards people with disabilities and their life satisfaction and empathy. Purpose: To assess the social perception of people with disabilities by medical students. Materials and methods: The present study interviewed 451 medical students of the Medical University of Białystok regarding their perceptions of people with disabilities, especially in light of their own satisfaction with life and empathy. We used the following questionnaires: the original questionnaire about attitudes towards people with disabilities, The Satisfaction with Life Scale (SWLS), and Empathy Understanding Questionnaire (KRE). Results: Attitudes towards people with disabilities people were generally positive. Almost 40% of respondents expressed a willingness to help for people with disabilities. In general, disabled people do not have full access to all fields of social (63.4%) and professional (63.2%) life. At the same time, disabled people tend to marry (84.9%), have children (82.1%), work (88.2%), and drive cars (76.1%). Respondents were convinced that contact with a disabled person teaches ways to help others (42.1%), and in fact 58.6% of respondents reported having decided to participate with helping the disabled. The average life satisfaction of the students was 22.7 ± 5.3 which indicates that the respondents are satisfied with their lives. The empathy level of respondents was 66.97 points ± 2.98, which indicates average level of empathy. Conclusions: This study shows that students’ perception of people with disabilities depends upon how the students viewed disabled people’s, life satisfaction and empathy.
Źródło:
Progress in Health Sciences; 2016, 6(2); 125-131
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microwave plasma for hydrogen production from liquids
Autorzy:
Czylkowski, D.
Hrycak, B.
Miotk, R.
Jasiński, M.
Mizeraczyk, J.
Dors, M.
Powiązania:
https://bibliotekanauki.pl/articles/148564.pdf
Data publikacji:
2016
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
dry reforming
ethanol
hydrogen production
isopropanol
kerosene
microwave plasma
Opis:
The hydrogen production by conversion of liquid compounds containing hydrogen was investigated experimentally. The waveguide-supplied metal cylinder-based microwave plasma source (MPS) operated at frequency of 915 MHz at atmospheric pressure was used. The decomposition of ethanol, isopropanol and kerosene was performed employing plasma dry reforming process. The liquid was introduced into the plasma in the form of vapour. The amount of vapour ranged from 0.4 to 2.4 kg/h. Carbon dioxide with the fl ow rate ranged from 1200 to 2700 NL/h was used as a working gas. The absorbed microwave power was up to 6 kW. The effect of absorbed microwave power, liquid composition, liquid fl ow rate and working gas fl ow rate was analysed. All these parameters have a clear infl uence on the hydrogen production effi ciency, which was described with such parameters as the hydrogen production rate [NL(H2)/h] and the energy yield of hydrogen production [NL(H2)/kWh]. The best achieved experimental results showed that the hydrogen production rate was up to 1116 NL(H2)/h and the energy yield was 223 NL(H2) per kWh of absorbed microwave energy. The results were obtained in the case of isopropanol dry reforming. The presented catalyst-free microwave plasma method can be adapted for hydrogen production not only from ethanol, isopropanol and kerosene, but also from different other liquid compounds containing hydrogen, like gasoline, heavy oils and biofuels.
Źródło:
Nukleonika; 2016, 61, 2; 185-190
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The perception of violence in children’s drawings
Autorzy:
Krajewska-Kułak, E.
Kułak, W.
Stelcer, B.
Jasiński, M.
Kowalczuk, K.
Łukaszuk, C.
Guzowski, A.
Cybulski, M.
Lewko, J.
Van Damme-Ostapowicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/1917749.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
Violence
drawings
children
adolescents
Opis:
The aim of the paper is to evaluate the perception of violence held by children and adolescents aged 8 to 16 years based on their artworks. 163 children’s drawings submitted from across Poland on "Children against violence." were analyzed. These pictures were analysed according to their contents. The artworks were made using various techniques: torn paper collage, collage, wax scratch, coloring pages, painting using poster paints and watercolors. Drawings have been classified in twelve thematic groups: "aggression against things", "peer violence","violence and addiction", "family violence", "workplace violence", "on-line violence," verbal violence", the continuity of violence", difficult choices" ,and " help ". Children and adolescents are good observers and they see various forms of violence, especially signs of bullying, and the impact of addictions on their development. Children know how to avoid and reduce violence.
Źródło:
Progress in Health Sciences; 2016, 6(1); 78-85
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza skuteczności działania dodatków smarnych na podstawie badań przeprowadzonych z użyciem symulatora wiercenia Grace M2200
Analysis of lubricity additives effectiveness based on research performed with the Grace M2200 drilling simulator
Autorzy:
Jasiński, B.
Powiązania:
https://bibliotekanauki.pl/articles/1835435.pdf
Data publikacji:
2017
Wydawca:
Instytut Nafty i Gazu - Państwowy Instytut Badawczy
Tematy:
środki smarne
smarność
współczynnik tarcia
płuczka wiertnicza
lubricity additives
lubricity
friction coefficient
drilling mud
Opis:
Artykuł przedstawia analizę skuteczności działania nowoczesnych środków smarnych w inhibitowanych płuczkach wiertniczych opartą na zachodzących zmianach wartości współczynnika tarcia przy zadawanej różnej koncentracji danego środka. W toku realizacji badań sprawdzono działanie czterech środków smarnych. Dodawane były one w koncentracji 0,5%, 1,0% oraz 1,5% do dwóch rodzajów płuczek wiertniczych: polimerowo-potasowej oraz glikolowo-potasowej. Badania skuteczności działania prowadzono poprzez pomiar współczynnika tarcia za pomocą aparatu Grace M2200 HPHT. Współczynnik tarcia określany był dla kontaktów stal–stal, stal–piaskowiec. Ponadto określono wpływ badanych środków na podstawowe parametry oraz właściwości inhibitacyjne płuczek wiertniczych.
The article presents an analysis of modern lubricity additives effectiveness in inhibited drilling fluids, based on the coefficient of friction value changes. Four lubricity additives were tested throughout the studies. They were added at concentrations of 0.5%, 1.0% and 1.5% for the two types of drilling fluids: polymer-potassium and glycol-potassium muds. The studies were conducted based on the measurement of the coefficient of friction using a Grace M2200 HPHT drilling simulator. The coefficient of friction was determined on steel-steel contact and steel-sandstone contact. In addition, the impact of the examined agents on the rheological parameters and inhibitive properties of drilling muds was determined.
Źródło:
Nafta-Gaz; 2017, 73, 4; 257-265
0867-8871
Pojawia się w:
Nafta-Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł

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