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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/

    A micro powerplant with an engine with an external heat supply generates electrical energy for the company's own needs using heat loss from coke production. The basis of a micro thermal power plant is an external heat supply engine based on the Stirling principle. In this paper, authors take into account the positive results, experience, and achievements of foreigners, to create own design. The article presents some results of research on the efficiency of the engine with external heat supply. The article also shows the main technical characteristics of the model. In order to achieve high engine efficiency, it is necessary to get effective heating and cooling of a body. The article provides solutions to these problems. In addition, the article presents a simulation of the process of increasing pressure with the application of a computer program, which clearly shows all the performance characteristics of the engine. Микро электростанция с двигателем с внешним подводом теплоты будет вырабатывать электрическую энергию для собственных нужд предприятия используя тепловые потери коксового производства. Основой микро тепловой электростанции является двигатель с внешним подводом теплоты работающий по принципу Стирлинга. В своей работе мы учитываем положительные результаты, опыт и достижения зарубежных, для создания собственной конструкции. В статье приведены некоторые результаты исследований по эффективности работы двигателя с внешним подводом теплоты. Также в статье показаны основные технические характеристики модели. Для достижения высокого КПД двигателя необходимо добиться эффективного нагрева и охлаждения тела. В статье предоставлены пути решения данных проблем. Кроме того, в статье есть моделирование процесса увеличения давления при помощи компьютерной программы, что наглядно показывает все рабочие характеристики двигателя. №1(79) (2019)

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ https://dx.doi.org/1...arrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    https://dx.doi.org/10.23670/ir...
    Article . 2019
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ https://dx.doi.org/1...arrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      https://dx.doi.org/10.23670/ir...
      Article . 2019
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/

    В данной статье рассматривается возможности энергосбережения в перекачки воды, на базе электропривода. В этой статье мы рассматриваем возможности энергосбережения в насосных агрегатах для перекачки воды, на основе регулируемого электропривода. Представлены стандартные характеристики центробежного насосного агрегата, и пути экономии электрической энергии в насосных агрегатах, иллюстрированы энергетической диаграммой системы «преобразователь частоты – электрический двигатель – центробежный насос». In this article, the authors consider the possibilities of energy saving in water pumping, based on an electric drive. We consider the possibilities of energy saving in pumping units for pumping water, based on a regulated electric drive. The standard characteristics of a centrifugal pumping unit are presented, and ways to save electrical energy in pumping units are illustrated by the energy diagram of the system "frequency converter – electric motor – centrifugal pump." №06(72) (2018)

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ https://dx.doi.org/1...arrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    https://dx.doi.org/10.23670/ir...
    Article . 2018
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ https://dx.doi.org/1...arrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      https://dx.doi.org/10.23670/ir...
      Article . 2018
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: M E Rakhmetov; B Z Kenzhegulov; A N Muratkaliev; T B Gapuova;

    На основе энергетических принципов ориентированный на минимизации полной тепловой энергии упругих деформации в сочетании применении квадратичного конечного элемента с тремя узлами разработан вичислительный алгоритм и численно исследована термо-напряженно-деформированное состояние защемленного двумя концами стержня, постоянного поперечного сечения в зависимости наличия частичной теплоизоляции, теплового потока и теплообменов. The computational algorithm is developed and the thermo-stress-strain state of a rod fixed at two ends with a constant cross section depending on the presence of partial thermal insulation, heat flux and heat exchanges is numerically investigated, based on energy principles, focused on minimization of total thermal energy of elastic deformations combined with the use of a quadratic finite element with three nodes. №2(92) (2020)

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ https://dx.doi.org/1...arrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    https://dx.doi.org/10.23670/ir...
    Article . 2020
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ https://dx.doi.org/1...arrow_drop_down
      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
      https://dx.doi.org/10.23670/ir...
      Article . 2020
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/

    The goal of this work is to prove a possibility of determining soil parameters that influence its conductivity being the basis of grounding, step voltage and touch voltage calculation. This in its turn increases the safety level of electric equipment operation. The article is devoted to development of new, no conventional models of soil conductivity using the theory of fuzzy sets and fuzzy logic. The description of the solution includes the following sections: fuzzy models of specific electrical resistance of different soil types depending on their salinity and moisture content at positive temperatures; dependences between ρ and negative temperature values for different types of soil and different moisture contents; fuzzy climatic soil models for a specific location in order to determine soil ρ deep into the earth throughout the year. Uncertainty of soil properties is a reason why calculations of grounding devices are very liberal with plenty to spare, and calculations of touch voltages and step voltages in the period of active snow melting or abundant rains give erroneous results. Since soil parameters are described by linguistic variables: humidity, salinity, and temperature etc., soil layers should be considered as overlapping fuzzy sets. Membership functions of the main components of the “soil conductivity” concept were formed on this basis. The new scientific result we obtained makes it possible to formalize natural language of the experts in the field of climatic factors influence on soil resistivity in order to represent this information with the help of computer algorithms for optimum design of energy supply security and step voltage and touch voltage calculation.

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ ZENODOarrow_drop_down
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ ZENODOarrow_drop_down
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: B Z Kenzhegulov; T B Gapuova; M E Rakhmetov; A N Muratkaliev;

    На основе энергетических принципов ориентированный на минимизации полной тепловой энергии упругих деформации в сочетании применении квадратичного конечного элемента с тремя узлами разработан математическая модель защемленного двумя концами стержня, постоянного поперечного сечения в зависимости наличия частичной теплоизоляции, теплового потока и теплообменов. The mathematical model of a rod with a constant cross section fixed at both ends is developed depending on the presence of partial thermal insulation, heat flux, and heat exchanges based on energy principles, focused on minimization of total thermal energy of elastic deformations combined with the use of a quadratic finite element with three nodes. №2(92) (2020)

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ https://dx.doi.org/1...arrow_drop_down
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    https://dx.doi.org/10.23670/ir...
    Article . 2020
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The following results are related to Energy Research. Are you interested to view more results? Visit OpenAIRE - Explore.
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/

    A micro powerplant with an engine with an external heat supply generates electrical energy for the company's own needs using heat loss from coke production. The basis of a micro thermal power plant is an external heat supply engine based on the Stirling principle. In this paper, authors take into account the positive results, experience, and achievements of foreigners, to create own design. The article presents some results of research on the efficiency of the engine with external heat supply. The article also shows the main technical characteristics of the model. In order to achieve high engine efficiency, it is necessary to get effective heating and cooling of a body. The article provides solutions to these problems. In addition, the article presents a simulation of the process of increasing pressure with the application of a computer program, which clearly shows all the performance characteristics of the engine. Микро электростанция с двигателем с внешним подводом теплоты будет вырабатывать электрическую энергию для собственных нужд предприятия используя тепловые потери коксового производства. Основой микро тепловой электростанции является двигатель с внешним подводом теплоты работающий по принципу Стирлинга. В своей работе мы учитываем положительные результаты, опыт и достижения зарубежных, для создания собственной конструкции. В статье приведены некоторые результаты исследований по эффективности работы двигателя с внешним подводом теплоты. Также в статье показаны основные технические характеристики модели. Для достижения высокого КПД двигателя необходимо добиться эффективного нагрева и охлаждения тела. В статье предоставлены пути решения данных проблем. Кроме того, в статье есть моделирование процесса увеличения давления при помощи компьютерной программы, что наглядно показывает все рабочие характеристики двигателя. №1(79) (2019)

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ https://dx.doi.org/1...arrow_drop_down
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    https://dx.doi.org/10.23670/ir...
    Article . 2019
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      https://dx.doi.org/10.23670/ir...
      Article . 2019
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    В данной статье рассматривается возможности энергосбережения в перекачки воды, на базе электропривода. В этой статье мы рассматриваем возможности энергосбережения в насосных агрегатах для перекачки воды, на основе регулируемого электропривода. Представлены стандартные характеристики центробежного насосного агрегата, и пути экономии электрической энергии в насосных агрегатах, иллюстрированы энергетической диаграммой системы «преобразователь частоты – электрический двигатель – центробежный насос». In this article, the authors consider the possibilities of energy saving in water pumping, based on an electric drive. We consider the possibilities of energy saving in pumping units for pumping water, based on a regulated electric drive. The standard characteristics of a centrifugal pumping unit are presented, and ways to save electrical energy in pumping units are illustrated by the energy diagram of the system "frequency converter – electric motor – centrifugal pump." №06(72) (2018)

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    https://dx.doi.org/10.23670/ir...
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      https://dx.doi.org/10.23670/ir...
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    Authors: M E Rakhmetov; B Z Kenzhegulov; A N Muratkaliev; T B Gapuova;

    На основе энергетических принципов ориентированный на минимизации полной тепловой энергии упругих деформации в сочетании применении квадратичного конечного элемента с тремя узлами разработан вичислительный алгоритм и численно исследована термо-напряженно-деформированное состояние защемленного двумя концами стержня, постоянного поперечного сечения в зависимости наличия частичной теплоизоляции, теплового потока и теплообменов. The computational algorithm is developed and the thermo-stress-strain state of a rod fixed at two ends with a constant cross section depending on the presence of partial thermal insulation, heat flux and heat exchanges is numerically investigated, based on energy principles, focused on minimization of total thermal energy of elastic deformations combined with the use of a quadratic finite element with three nodes. №2(92) (2020)

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      https://dx.doi.org/10.23670/ir...
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    The goal of this work is to prove a possibility of determining soil parameters that influence its conductivity being the basis of grounding, step voltage and touch voltage calculation. This in its turn increases the safety level of electric equipment operation. The article is devoted to development of new, no conventional models of soil conductivity using the theory of fuzzy sets and fuzzy logic. The description of the solution includes the following sections: fuzzy models of specific electrical resistance of different soil types depending on their salinity and moisture content at positive temperatures; dependences between ρ and negative temperature values for different types of soil and different moisture contents; fuzzy climatic soil models for a specific location in order to determine soil ρ deep into the earth throughout the year. Uncertainty of soil properties is a reason why calculations of grounding devices are very liberal with plenty to spare, and calculations of touch voltages and step voltages in the period of active snow melting or abundant rains give erroneous results. Since soil parameters are described by linguistic variables: humidity, salinity, and temperature etc., soil layers should be considered as overlapping fuzzy sets. Membership functions of the main components of the “soil conductivity” concept were formed on this basis. The new scientific result we obtained makes it possible to formalize natural language of the experts in the field of climatic factors influence on soil resistivity in order to represent this information with the help of computer algorithms for optimum design of energy supply security and step voltage and touch voltage calculation.

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    Authors: B Z Kenzhegulov; T B Gapuova; M E Rakhmetov; A N Muratkaliev;

    На основе энергетических принципов ориентированный на минимизации полной тепловой энергии упругих деформации в сочетании применении квадратичного конечного элемента с тремя узлами разработан математическая модель защемленного двумя концами стержня, постоянного поперечного сечения в зависимости наличия частичной теплоизоляции, теплового потока и теплообменов. The mathematical model of a rod with a constant cross section fixed at both ends is developed depending on the presence of partial thermal insulation, heat flux, and heat exchanges based on energy principles, focused on minimization of total thermal energy of elastic deformations combined with the use of a quadratic finite element with three nodes. №2(92) (2020)

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    https://dx.doi.org/10.23670/ir...
    Article . 2020
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