Choice of the system characteristics of a turbocompressor unit on the basis of the analysis of its effectiveness according to the results of field tests. Part II. Methodological approaches to the creation of block-complete turbo-compressor units for compressor stations in the gas industry

2017 ◽  
Vol 20 (1) ◽  
pp. 3-11 ◽  
Author(s):  
V. Parafeinik ◽  
◽  
N. Shcherbakov ◽  
A. Ryabov ◽  
V. Shevchuk ◽  
...  
Keyword(s):  
Field Tests ◽  
Gas Industry ◽  
Methodological Approaches ◽  
The Creation ◽  
Turbo Compressor ◽  
System Characteristics

scholarly journals POSSIBILITY OF UPDATING THE TURBO- COMPRESSOR PACKAGES OF GAS INDUSTRY BASED ON THE EFFICIENCY ANALYSIS RESULTS OF THEIR WORKING PROCESS

2018 ◽  
Vol 40 (1) ◽  
pp. 36-43
Author(s):  
I.N. Tertyshnyi ◽  
V.P. Parafejnik
Keyword(s):  
Experimental Data ◽  
Energy Efficiency ◽  
Gas Turbine ◽  
Efficiency Analysis ◽  
Working Process ◽  
Gas Industry ◽  
Turbine Engine ◽  
Increase Energy Efficiency ◽  
Turbo Compressor ◽  
System Characteristics

Using the experimental data on efficiency of centrifugal compressor and gas turbine engine being a part of the package GPA-C-6,3A the efficiency analysis of its working process is made. Based on it the package system characteristics and the recommendations to increase energy efficiency of gas turbine TCA are obtained.

scholarly journals On the Issue of Research of Information Support of Sustainable Agricultural Landscapes Formation

2020 ◽  
Keyword(s):  
Agricultural Land ◽  
Ecological Impact ◽  
Arable Land ◽  
Agricultural Landscapes ◽  
Information Support ◽  
Erosion Processes ◽  
Shelter Belts ◽  
Forest Belts ◽  
Methodological Approaches ◽  
The Creation

Purpose. To characterize the methodological approaches that we develop in the formation of a system of information support for the creation and maintenance of the functioning of modern sustainable agricultural landscapes and to show the results of their implementation on the example of the territory of some agricultural enterprises of the Kharkiv region. Methods. Cartographic, geoinformation analysis, calculation, statistical and mathematical. Results. Some results of the work of the collective on the issues of information support for the creation and maintenance of the functioning of modern sustainable agricultural landscapes. Namely, verification of erosion models, studies of the functionality of shelter belts, the formation of an agroeconet (an extensive network of natural and quasi-natural landscapes) on agricultural land massifs, which ensures the maintenance of stable functioning of meso and macrolevel agrolandscapes, as well as the experience of using magnetic prospecting methods to verify the results of mathematical modeling of erosion processes. Conclusions. A number of methodological approaches to information support of the formation of sustainable agricultural landscapes in the natural and socio-economic conditions of Ukraine have been developed. They relate to the functioning of anti-erosion measures of permanent action, the processes of modern transformation of agro-landscapes, the ecological impact of erosion processes on the environment. The connection between the length of forest belts per unit of arable land and soil erosion is shown. A methodical approach has been developed to estimate the amount of soil washed away from arable land and to calculate the measures necessary to eliminate its harmful effects on the environment.

scholarly journals Microcredits for Sustainable Development of Small Ukrainian Enterprises: Efficiency, Accessibility, and Government Contribution

2020 ◽  
Vol 12 (15) ◽  
pp. 6184 ◽  
Author(s):  
Olexandr Yemelyanov ◽  
Tetyana Petrushka ◽  
Anastasiya Symak ◽  
Olena Trevoho ◽  
Anatolii Turylo ◽  
...  
Keyword(s):  
Growth Rate ◽  
Sustainable Development ◽  
Linear Relationship ◽  
Labor Productivity ◽  
Small Businesses ◽  
State Support ◽  
Time Intervals ◽  
The Sustainable Development ◽  
Methodological Approaches ◽  
The Creation

The purpose of the study was to assess the efficiency and accessibility of microcredits for small Ukrainian enterprises and to justify the feasibility of strengthening government contributions in lending to ensure the sustainable development of small businesses. Indicators for evaluating the efficiency and accessibility of microcredits are systematized. Methodological approaches to assessing the efficiency of lending for the creation and development of microenterprises have been improved. A model for evaluating the efficiency of microcredits aimed at the survival of microenterprises in a deteriorating environment was developed. It has been revealed that the level of efficiency of microcredit creation for firms in some time intervals depends quadratically on the share of microcredits in the total amount of funds directed to the creation of firms. A linear relationship between the relative amount of credit received and the growth rate of firms’ assets has also been established. However, there is no significant impact of the microcredit’s amount on labor productivity. A method has been developed for evaluating the budgetary efficiency of microcredits when such a lending is carried out using funds from state or local budgets. It was found that improving these lending conditions through budget financing can significantly increase its attractiveness for microenterprises without significantly reducing the budgetary efficiency of microcredits. This article substantiates the need to strengthen state support for microcrediting of small Ukrainian enterprises in the context of the COVID-19 pandemic.

scholarly journals Ecological and economic mechanism for the formation of environmental measures in the gas extraction constructions

2019 ◽  
Vol 91 ◽  
pp. 08014 ◽  
Author(s):  
Elena V. Voskresenskaya ◽  
Lybov G. Vorona-Slivinskaya ◽  
Vitaly Snetkov ◽  
Anatolii Ponomarenko
Keyword(s):  
Economic Assessment ◽  
Environmental Safety ◽  
Survey Development ◽  
Protection Measures ◽  
Gas Industry ◽  
Economic Mechanism ◽  
Management Processes ◽  
Methodological Improvement ◽  
Methodological Approaches ◽  
Environmental Measures

The disturbed balance of the “society-nature” system has led to the fact that the production of output usually involves environmental pollution. The reason is that most technological processes are far from perfect and involve formation of intermediate substances or end products that do not participate in further production process and consequently become waste. Therefore, the authors analyze the methodological approaches of integrated environmental and economic assessment of environment protection measures during the construction of gas industry facilities, which is a relevant issue in terms of ecology. The authors claim that the extraction of fuel and energy resources disrupt the biogeocoenosises’ components during the survey, development and exploitation of deposits, leading to the manifestation of dangerous natural management processes and destruction of flora and fauna. Therefore, the environmental-economic mechanism for the formation of environmental measures during the construction of gas facilities should be improved within the framework of the strategy of sustainable economic development of society and ensuring its environmental safety. Analysis of methods for assessing the environmental and economic impact of gas industry enterprises on the environment has shown that enterprises need further instrumental and methodological improvement.

scholarly journals Neuromotricidad, Psicomotricidad y Motricidad. Nuevas aproximaciones metodológicas (Neuromotricity, Psychomotricity and Motor skills. New methodological approaches)

Retos ◽  
2021 ◽  
Vol 42 ◽  
pp. 924-938
Author(s):  
Eliseo Andreu Cabrera ◽  
Francisco Javier Romero-Naranjo
Keyword(s):  
Motor Skills ◽  
21St Century ◽  
Psychomotor Skills ◽  
Special Area ◽  
Human Motor ◽  
Methodological Approaches ◽  
The Creation ◽  
The Brain ◽  
Practical Level

  El propósito de este artículo es analizar la terminología relacionada con la motricidad humana, al objeto de proponer el neologismo de neuromotricidad como concepto del siglo XXI, que se diferencie conceptualmente de otros términos similares, como motricidad o psicomotricidad. Los avances en el estudio del cerebro y su relación con el movimiento, nos empuja a la creación de un área especial dentro de la Ciencia de la motricidad humana, con planteamientos metodológicas innovadores. El método BAPNE (Romero, 2004) se postula como una posibilidad para optimizar el rendimiento del cerebro en el ámbito de la motricidad humana. Así mismo, aportamos una pirámide explicativa que muestra gráficamente la jerarquía terminológica dentro del ámbito de la motricidad, tanto a nivel teórico como práctico. Abstract: The purpose of this article is to analyse the terminology related to human motor skills in order to propose the neologism of neuromotor skills (Neuromotricity) as a concept for the 21st century, which is conceptually different from other similar terms such as motor skills or psychomotor skills. Advances in the study of the brain and its relationship with movement have led to the creation of a special area within the science of human motor skills, with innovative methodological approaches. The BAPNE method (Romero, 2004) is postulated as a possibility to optimise the performance of the brain in the field of human motor skills. We also provide an explanatory pyramid that graphically shows the terminological hierarchy within the field of motor skills, both on a theoretical and practical level.

New «green» inhibitors of gas hydrate formation for the oil and gas industry based on polysaccharides

2021 ◽  
pp. 33-40
Author(s):  
V.A. Dokichev ◽  
◽  
A.I. Voloshin ◽  
N.E. Nifantiev ◽  
M.P. Egorov ◽  
...  
Keyword(s):  
Gas Hydrate ◽  
Oil And Gas ◽  
Hydrate Formation ◽  
Field Tests ◽  
Oil And Gas Industry ◽  
Quasi Equilibrium ◽  
Green Inhibitor ◽  
Gas Industry ◽  
Gas Hydrate Formation ◽  
Thermobaric Conditions

The thermobaric conditions for the formation of gas hydrates in the presence of the sodium salt of carboxymethylcellulose, dextran, and arabinogalactan were studied in a quasi-equilibrium thermodynamic experiment. It is established that polysaccharides slow down the rate and change the conditions of gas hydrate formation of a mixture of natural gases, showing the properties of a thermodynamic and kinetic inhibitor with technological efficiency exceeding methanol by 170-270 times when used in the same dosages. The results of the development of a «green» synergistic inhibitor of gas hydrate formation «Glycan RU» on their basis are presented, which includes a combination of thermodynamic and kinetic inhibitors. Pilot field tests of «Glycan RU» were carried out at the wells of the Priobskoye, Prirazlomnoye, Ombinsky, Zapadno-Ugutskoye oilfields. It was found that at dosages of 1000 g/m3 and 500 g/m3, there is no formation of hydrate plugs in the annulus. «Glycan RU» is recommended for industrial use by the technology of periodic injection and/or continuous dosing through wellhead dispensers. Keywords: carboxymethylcellulose; dextran; arabinogalactan; polysaccharides; «green» inhibitor of gas hydrate formation; «Glycan RU».

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