List of publications on a keyword: «energy»

A theoretical estimate of the dependence of ultimate strength on the physical properties of a solid substance—such as density, molecular weight, melting point, and enthalpy of fusion—has been obtained. This dependence explains how these properties influence the material’s strength based on the “unpacking” concept of substance matter. The physical limits of applicability for the concept of “force” in Newtonian mechanics, and its distinction from the “unpacking” concept, are substantiated. This dependence, while similar in form to the Clapeyron-Mendeleev equation for an ideal gas, has a different physical interpretation when applied to the ultimate strength of a solid. The calculated dependence was compared with tabulated data on the ultimate strength of 15 industrial metals. This model allows for the explanation and prediction of ultimate strength values for metals in the periodic table.

Functional requirements for buildings are a set of mandatory conditions and characteristics that must be taken into account when designing and constructing a building in order to ensure its proper functioning and compliance with the needs of users. These requirements determine the functional purpose of the building, its planning solution, engineering communications, safety, ergonomics and other aspects necessary for the comfortable and safe use of the building.

The article discusses the main aspects of integrating and optimizing heterogeneous energy resource accounting systems in multi-storey buildings. It describes benefits such as improved data accuracy and reduced operational costs, as well as challenges related to technical complexity and the need for standardization. Special attention is given to the analysis of methods for integrating various types of measuring instruments and software, which improves energy consumption management and ensures reliable data collection. Examples of successful implementations in various residential complexes are provided, illustrating real-world results and the economic efficiency of such approaches. The main technical and organizational challenges, including compatibility issues, data security problems, and the need to adapt existing systems, are also discussed. Recommendations for further development in this area are proposed, aimed at overcoming existing barriers and enhancing the interaction between different components of the energy resource accounting system.

The article discusses modern technologies and approaches to the integration and optimization of heterogeneous energy resource accounting systems in residential complexes. It describes benefits such as improved data accuracy and reduced operational costs, as well as challenges related to technical complexity and the need for standardization. Special attention is given to the analysis of methods for integrating various types of measuring instruments and software, which improves energy consumption management and ensures reliable data collection. Examples of successful implementations in various residential complexes are provided, illustrating real-world results and the economic efficiency of such approaches. The main technical and organizational challenges, including compatibility issues, data security problems, and the need to adapt existing systems, are also discussed. Recommendations for further development in this area are proposed, aimed at overcoming existing barriers and enhancing the interaction between different components of the energy resource accounting system.

Annotation The properties of the atomic nucleus were studied, in particular the weight of quarks and the energy of gluons were calculated. The nuclear potential and quark mass were calculated from the kinetic energy and momentum. This is determined using integers on which the mass of quarks and the energy of gluons depend. The mass of quarks is approximately known, and a dependence on integer numbers of the quark mass is selected that is close to the experimental value. This allows us to more accurately determine the mass of quarks that satisfy the kinetic energy of the quarks and their momentum. The energy of the atomic nucleus and the energy of the atom are determined using STR formulas at imaginary speed.

The issues of increasing of the energy efficiency of technological processes of vacuum plasma spraying coating by optimizing the parameters of the supply voltage of the asynchronous electric drive of the forevacuum pump are considered in this article. The author puts forward methodology of a technique for an automatic control system for the parameters of the supply voltage of an asynchronous pump motor.

This article brings together previously published evidence of the unified nature of physical processes and phenomena in terms of changes in the energy of a substance molecule. The unified physical nature of all these physical phenomena has been proven, as a single multistage process of energetic unpacking of molecules of a substance, which is logical to call the molecular-energy concept of unpacking a substance. The considered processes include the following processes. Surface rupture, characterized by the surface tension coefficient. The melting process of a substance characterized by its melting point. A boiling process characterized by the boiling point. Evaporation (and condensation) process characterized by internal energy and enthalpy as well as critical point. The conclusions of the theory are confirmed by well-known empirical dependences and by reference books of the physical properties of simple substances: internal energy, enthalpy, surface tension, melting point, boiling point and critical point.

The paper provides solutions for energy supply to agricultural consumers remote from energy sources due to non-traditional types of energy, based on patents of the Russian Federation. A scheme of a thermodynamic installation operating according to the Rankine cycle on a low boiling liquid is considered. The circuit uses a capacitor that increases the temperature of the condensate, leading to an increase in the efficiency of the thermodynamic installation. A series of graphs is given, confirming the required amount of heat received for the operation of the installation and a graph of the dependence of the efficiency of the installation on temperature conditions. A graph of solar energy is shown, which feeds per unit of horizontal surface and its integral value for one day. Options for improving the installation using concentrating receivers of solar energy are given. Test schedules for the solar collector module are provided.

Green economy models, in particular, the circular economy model, are capable of creating promising ways to build an ecological future, which requires modernization of the system with respect to a number of environmental methods and elements. The article discusses examples of implementing the key principles of sustainable development and the green economy in the activities of foreign energy and oil and gas companies, which represent a segment with the most powerful potential for introducing new innovative processes and conducting environmental projects.

In the article, the authors’ concept is presented, according to which all planets rotate about their axis due to their satellites. The planet and its satellite are interconnected by a shared gravity, which moves along the surface of the planet as the result of the satellite moving in an orbit. The discussed movement of gravity applies to all planets and the Sun. The shared gravity is at its maximum on the Earth and Sun surface. Particular celestial bodies have their beginning, evolution and end. On the whole, the Universe has always existed and will always exist, and such major formations as galaxies and stars will never cease to exist.

This article discusses the role of cooperation between Russia and China in the energy sector in the conditions of de-dollarization. Trends in the development of relations between the two countries are formulated. Finally, it is concluded that the partnership between Russia and China is united by a common goal to resist the international system, which is dominated by the West. Their relationship is tactical and opportunistic, but increasingly compatible with economic, political and security interests.

For the purpose of learning multidimensional models, difficult for perception, representations and technology (device) of the description and measurement of volume and amount of the substance filling the volume of multidimensional objects are considered. Alternative options of multidimensional set of one-dimensional models and unified multidimensional model of three-dimensional objects are compared. The technology of measurement of multidimensional volume and amount of the substance that fills volume is shown. The authors came to the conclusion when transferring from a set of coordinate vectors of material points in complete spatial angle 4π steradian to multidimensional model of in pairs orthogonal vectors, calculation of volume of a multidimensional object significantly becomes simpler. The conclusion is that potentially infinite-dimensional model of an object represents the sphere in which balk of volume, the quantity and energy of the substance filling volume are entirely concentrated on its surface.

In this paper, the authors propose a new approach to the consideration of the friction phenomenon in HEAs and, in particular, dry friction. An equation is obtained that shows the nonlinear dependence of the friction coefficient on Gibbs energy G0, on temperature T, on the concentration of the number of electrons N and which allows predicting the formation of high entropy alloys and coatings.

The practice of implementing the key principles of sustainable development and the green economy in the activities of modern oil and gas companies is considered in the article. The authors come to conclusion that the implementation and construction of policies focused on the modernized goals and objectives of the green economy, meeting modern challenges in development, can be a direction for the development and updating of strategies of oil and gas companies in Russia in the medium term.

Variant of the design of a dual-purpose container for transporting and storing spent nuclear fuel has been proposed. It improves the manufacturability, reduces the mass of liquid iron for the manufacture of the casting of the hull, improves the degree of neutron protection and heat transfer characteristics without increasing the overall dimensions and wall thickness of the case.

Describes the design features and the principle of manufacturing a dual-purpose container for transporting and storing spent nuclear fuel using high-strength nodular cast iron.

Сomprehension of the concepts: «inertial condition of a body» and «inertial force» is the main aim of the article. Authors consider an inertial condition of a body or a system, as independent, autonomous, self-retaining and only internally dialectically changeable condition of the system living under the internal laws.

On the basis of the analysis of patent information, intellectual property objects in the field of energy wood hardening, patented in Russia in 2013-2018 are considered.

In the framework of the Petrozavodsk University's research together with the Trade Fair "Yarmarka" in the food industry, a brief analysis of the possibilities of using microwave energy for the extraction of nutraceuticals from plants.

This article discusses how to use solar energy to heat a building and develop a new device for generating heat from the sun. The author presents two types of solar energy usage.

Oil – a valuable energy resource, has an enormous impact on the world economy. According to the latest statistics global oil reserves will last 42 years, but with the development of new technologies it made possible the development of hard-to-reserves, which will help to extend the use of such a valuable energy resource for the long term. This article describes the main trends in the global oil market and analyzes the current situation on the world oil market.

Improving the competitiveness of the Russian Federation in the oil and gas industry – is one of the most pressing problems of today. Oil and gas – the most popular resources in the world. On this basis, in the highly competitive Russian companies it is not easy to manage to maintain its position in the world oil market. In this article the analysis of competitiveness in the Russian oil and gas industry is considered and some ways to improve the competitiveness of the Russian oil and gas companies in the world are studied.

According to researchers, the relevance of the chosen topic is to consider the simplest ways to save and use energy-saving energy technologies in everyday life. The goal is to create an acoustic lighting switch that can be used at home.

There is a wide range of possibilities for using wood waste in industry: the production of gasified fuel, the production of methanol, sorbents, lignin, heat-insulating materials, wood flour, cellulose, essential oil, arbolite, composite plywood, activated carbons, coniferous extracts, energy chips, etc.

With the use of the Russian index of scientific citation, a number of research and development activities have been identified in the field of development of energy wood resources.