Моделювання процесів теплообміну в мікромеханічних перетворювачах на основі добавок наночасток графена

Abstract

The creation of the thermodynamic powers of the micromechanical transformations gives the ability to better understand the processes in nanomaterials behind the same principles, and for the additional analysis of the after-effects of the possible processes in the process The micromechanical sensor is based on nanostructured materials, which are the basis in the quality of new materials given the power. Types of the graphene genealogical tree: graphite – large-globular graphene, fullerene (C₆₀) – packings of graphene, in carbon nanotubes (CNT) – graphene bends, when added to the conductive polymers, they create new materials with the necessary power. The algorithm for the development of the thermodynamic powers of the middle is proponated on the basis of the standard NIST (National Institute of Standards and Technologies), at low concentrations of graphene nanoparticles, it is possible to change against the string-conducting polymer Pedot: PSS. The calculations showed that lower values of thermal conductivity correspond to lower maximum temperatures of the graphene layer, and an increase in the power of the heat flux leads to an increase in the maximum temperature. The thermodynamic power is induced to break the carbon nanotubes with a string-wire polymer. The proponation of the regular and singular part of the thermodynamic surface of the reference range of the nanofluid (the concentration of nanoparticles in the amount of < 3 % in the grown vigil). An alternative approach to the intensification of heat transfer based on the concept of nanofluids, i.e. modification of the properties of the basic compound due to nanostructures, is considered. Theoretically, a resistive temperature dependence is predicted. The results of phase equilibrium calculations for fluid compounds are described. It is shown that the production of nanobins is one of the most pressing problems of nanotechnology application in thermal power engineering