Features of mathematical modelling of the microclimate of the non-productive building

Maria Prorokova,Vyacheslav Bukhmirov

doi:10.1051/matecconf/201711001018

Maria Prorokova, Vyacheslav Bukhmirov

Open Access

https://doi.org/10.1051/matecconf/201711001018

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Abstract

The mathematical model of heat and mass transfer in a non-production building is presented in the article. Features of modeling of objects of the specified type are analyzed. A mathematical model of the microclimate in the ANSYS Fluent was developed. Verification of the model was carried out by comparing the values of the microclimate parameters obtained by calculation, with experimental data.

Highlights

Calculation of the main parameters of the microclimate in non-production buildings is done to determine the degree of comfort of the microclimate, so the calculation must be carried out both during construction and when the building structure is changed, including for energy saving during its operation
Balance models analyze the room as a whole, in which the temperature and humidity of the air are the same at all points in the room
All engineering calculations are based on the solution of the equations of thermal and material balances for the object, and the boundary conditions are set, as a rule, using the equations of stationary heat transfer through non-permeable walls

Summary

Introduction

Calculation of the main parameters of the microclimate in non-production buildings is done to determine the degree of comfort of the microclimate, so the calculation must be carried out both during construction and when the building structure is changed, including for energy saving during its operation (replacement of windows, thermal insulation a. o.). Due to increase in power of computing tools and improving their mathematical apparatus, including numerical methods for solving differential heat transfer, mass, and momentum transfer equations, it became possible to predict the microclimate in rooms using multidimensional non-stationary mathematical models. This group of calculation methods is traditionally called mathematical modeling of microclimate [1]. For the numerical solution of the system of transport equations for the main parameters of a substance (heat, mass, and momentum), so-called, software-computational complexes (SCC) are developed, which can be universal or adapted for modeling physical and chemical processes in a specific device, for example, in a nuclear reactor. At the stage of the mathematical description of the object, the assumptions that simplify the problem write, define the conditions for single-valuedness, and write the differential transfer equations

Features of mathematical modeling of microclimate for nonproduction objects

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Results and discussion

Findings

Conclusions