Insulation materials
Material or article used for heat insulation of buildings, structures, industrial equipment, and transportation vehicles. Main indicator of the quality of an insulating material. Mineral wool and articles made from it, lightweight and cellular concretes.
Подобные документы
Use of composite materials Cu-Cr in electric contacts operating under DC low voltage loads of a small power. Сonclusions of possibility of the use of such material to control the arc to glow transformation for use in electric auxiliary switching devices.
статья, добавлен 08.02.2017Description of the method for determining the density of phonon states of composite materials based on the heat capacity of composite materials based on polytetrafluoroethylene matrix. Analysis of the boundary values of the intensity of phonon spectra.
статья, добавлен 12.05.2018Optimal conditions for the synthesis of nanopowders based bi2te3. Preparation of homogeneous dense material from nanopowder by hot isostatic pressing. Especially the increase in electrical resistivity, decrease in the average grain size of the material.
статья, добавлен 13.10.2016Оperating qualities of pin laminate of Cu - Mo used in low-voltage contactors outdoors. Performance of contactors with silver based contacts. Development of recommendations on effective application of such material to replace silver based compositions.
статья, добавлен 08.02.2017Hardening of machine parts by means of deformation waves generated by the system impact of the waveguide. The main conditions for the effective use of impact energy to elastic-plastic deformation of the material and create a hardened surface layer.
статья, добавлен 13.10.2016Brief biography of the Polish physicist A. Raabe, during his studies at Warsaw University, faculty of mathematics and natural Sciences. The master's degree. Research on mechanics of material systems. Teaching practice at the Ivan Franko University.
статья, добавлен 13.10.2016General characteristics of the heat supply system Suzdal, history and the stages of its creation. The current state and trends, as well as prospects for further improvement in this area. Evaluation of the reliability of the main components of the system.
статья, добавлен 11.03.2019Calculation of reliability as an object’s complex. The procedure of setting the appropriate indicators using methods based on their definition by reference data about the object elements’ and the analog objects’ reliability, data on material properties.
статья, добавлен 29.11.2016Maxwell’s equations with a glance of anisotropic vacuum. The approximation of the weak anisotropy in charges’ absence condition. Methods of analysis a dependence of a light’s speed on polarization. The material equations in case of the time tensor.
доклад, добавлен 02.07.2014Analysis of the use of a combined solar collector for heat supply of buildings to enhance the efficiency of solar system by increasing the surface area of absorption of solar energy. The study of the intensity of the solar radiation on the collector.
статья, добавлен 24.02.2016Results changes in the structure of materials at pulsed plasma processing on the accelerator. Changes in physico-mechanical properties because the structure and phase transformations in a material when the difference of parameters of the plasma exposure.
статья, добавлен 13.10.2016The measurement and analysis of the quality of electrical energy in electric grids. The characteristics of the main tools for measuring power quality, the requirements on the measurement of power quality. Instruments to measure the indicators of quality.
статья, добавлен 06.05.2018Investigation of reverse effects in non-residential buildings after thermal modernization. Study of actual and calculated indicators of heat consumption before and after thermal modernization. Development of a technique for determining reverse effects.
статья, добавлен 01.12.2017Manufacture of containers for transportation and storage of spent nuclear fuel. A composite of depleted uranium dioxide (DUO2) with concrete. Study of the efficiency of radiation protection DUCRETETM in comparison with the container of plain concrete.
статья, добавлен 08.10.2013Influence of oil impurities on the characteristics of isobutane boiling process in the evaporator complex setup. Dependence of oil concentration before throttling versus mass flow rate, of the local heat transfer coefficient from concentration of oil.
статья, добавлен 30.01.2016The concept of influence of protons on superconductivity and the ideas for determination of superconducting materials with 200K. A superconducting impurity in some layered phases. The study sample with an optimal interlayer electrostatic potential.
статья, добавлен 27.07.2017The impact of nanoporous carbon material morphology on its electrochemical behavior in aqueous electrolyte. The optimum concentration of aqueous lithium sulfate which provides the maximum specific energy characteristics of capacitor-type systems C/LiSO/C.
статья, добавлен 24.02.2016Features application of shock wave mechanical hardening for the production of micro - or nanocrystalline heterogeneous structures in homogeneous metals or alloys. Analysis of the layering structure and higher productivity of the strengthened element.
статья, добавлен 13.10.2016Two variants of the operative conditions of heat and power plants with technological schemes where heat pumps are used for utilizing the heat of exhaust gases of steam generators. System of the automatic control of frequency and power as power system.
статья, добавлен 30.01.2016Dielectric loss, which characterizes the conversion of electrical energy into thermal energy as electrical properties of dielectrics. Loss mechanisms and their contribution to the conductivity of the dielectric materials of ultra-high frequencies.
статья, добавлен 26.06.2016Challenges of biofuel production. The main characteristics of the liquid biofuels production and consumption. Development trends of biofuels production with crop raw material. Economic incentives at different stages of the value chain of liquid biofuels.
статья, добавлен 28.01.2017General characteristics of the main types of relay protection. Analysis of the causes of accidents that can damage technical equipment or lead to the death of service personnel. Acquaintance with the features of the formation of relay protection.
статья, добавлен 15.01.2021A method of the WWER-1000 fuel element cladding durability analysis using the energy creep theory. The value of linear heat. Linear heat rate jump. Analyzing the current Ukrainian energetic status. Circumferential and axial stress. Combined load cycle.
статья, добавлен 22.08.2013Analyzes the heat supply complex on the example of Lviv region. The ways of diversifying fuel and energy resources of Ukraine. The basic directions of implementing the alternative energy sources. The alternative and renewable energy sources potential.
статья, добавлен 28.09.2016Multilevel converter constructing and functioning principles. Method of current forming for contact microwelding equipment allows significant decreasing of cells and switches quantity, increasing of energy efficiency with high quality of welded joint.
статья, добавлен 02.02.2019