Development of mathematical models and the calculations of elements of convective heat transfer systems

Mysak, Yosyf; Galyanchuk, Igor; Kuznetsova, M.Ya.

doi:10.15587/1729-4061.2016.74826

Cited by 5 publications

(2 citation statements)

References 12 publications

(17 reference statements)

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“…Turbulent flows of gas and particulate matter mixtures are important in many areas of modern engineering, such as industrial air cleaning, power generation, materials manufacturing, oil and gas, and air and gas purification, where they affect process efficiency, product quality, and compliance with environmental standards, particularly in the energy sector. 7,8 It is connected with the combustion of solid fuels, which are difficult to burn due to deterioration of combustion, in flow-through chemical reactor systems with suspended particles, and so forth. Solid fuel is introduced into the combustion chamber through either external or internal feeding.…”

Section: Introductionmentioning

confidence: 99%

Numerical modeling of two‐phase flows in the presence of dynamic and thermal interactions

Tulegenov,

Kamalova,

Bekenova

et al. 2023

Heat Trans

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The study of turbulent flow in mixtures consisting of gas and particulate matter is a current area of research among modern scientists. The main objective of this area is to prevent the reduction of burnout in flow‐through systems. Therefore, the purpose of this research is to develop a mathematical model of turbulent gas flow with solids to explore the structure of the combustion region in a channel with a partially open boundary to determine the interfacial interaction of the injection of a flat heterogeneous flow in a confined area and the influence of regime parameters on the ignition process. For this purpose, a modeling method was used, which involved using the fundamental laws of continuity of flow, conservation of energy, and the quantity of motion and matter, and an experiment was conducted to reconcile the proposed model with theoretical data. As a result of this work, a model based on the averaged Reynolds Navier–Stokes equations and an algorithm for solving a turbulent subsonic two‐dimensional flow in a heterogeneous medium based on an Euler–Lagrange representation have been developed. Thus, the effects of the parameters of entrainment, temperature, and component concentration on the combustion range and mixing intensity were determined. The proposed methodology can be applied to solve application problems of various kinds, for example, in the design of thermal power plants. The scope of the mathematical and numerical models developed is sufficiently broad that they are universal.

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Section: Introductionmentioning

confidence: 99%

Numerical modeling of two‐phase flows in the presence of dynamic and thermal interactions

Tulegenov,

Kamalova,

Bekenova

et al. 2023

Heat Trans

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“…In addition, the actual conditions for the practical use of this technological equipment may significantly differ from those that were originally laid down when drawing up an approximate plan for the implementation of a technical project (Sheikholeslami and Ganji 2017). These factors explain the need for the consistent development of special methods of mathematical calculations sufficient for the qualitative determination of key parameters of regime dependencies and involving the use of minimal amounts of available information for this purpose (Mysak et al 2016). The results of the practical application of such computational mathematical models are undergoing a stage of generalization and systematization.…”

Section: Introductionmentioning

confidence: 99%

The heat-transfer system modelling of the convective heating surfaces of a TP-92 steam boiler

Kravets¹,

Galyanchuk²,

Yurasova³

et al. 2022

Polityka Energetyczna – Energy Policy Journal

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The relevance of the subject of research is determined by the need to develop and subsequently implement a mathematical model and the corresponding structural scheme of the convective heating surfaces of the TP-92 steam boiler. The purpose of this research work is to directly model the heat--transfer system of the convective heating surfaces of this boiler, designed for effective use in real conditions. The basis of the methodological approach in the research work is a combination of methods of the system analysis of the key principles of constructing mathematical models of heat-transfer systems of modern steam boilers with an experimental study of the prospects for creating a mathematical model of a heat-transfer system of the convective heating surfaces of a TP-92 steam boiler.In the course of the study, the results were obtained and presented in the form of a mathematical model of a convective heat-transfer system. It allows for making effective mathematical calculations of the main operating modes of the TP-92 steam boiler and calculating the dependences of the temperature and thermal modes of its operation on the change of incoming parameters of the used heat carriers, changes in the heating surface area and the relative flow rate of the heat carriers over the time of their use. The results obtained in the study, including the conclusions formulated on their basis, are of significant practical importance for the designers of steam boilers. The results also are useful for maintenance personnel, whose immediate responsibilities include determining the real possibilities of improving the convective heat-transfer system, based on the known parameters of the temperature of the coolant at the entrance to the system and at the exit from it.

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Numerical study of heating and evaporation processes of quartz particles in RF inductively coupled plasma

Grishin¹,

Miao

2017

J. Phys.: Conf. Ser.

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Development of mathematical models and the calculations of elements of convective heat transfer systems

Cited by 5 publications

References 12 publications

Numerical modeling of two‐phase flows in the presence of dynamic and thermal interactions

Numerical modeling of two‐phase flows in the presence of dynamic and thermal interactions

The heat-transfer system modelling of the convective heating surfaces of a TP-92 steam boiler

Numerical study of heating and evaporation processes of quartz particles in RF inductively coupled plasma

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