Abstract. The method of determining a microclimate comfort level have been developed, taking into account the main parameters influencing the microclimate in residential, public and administration buildings, their mutual influence on the comfort level, and air quality.

Abtract. The article describes the method of valuation of comfort of microclimate of residential, public and administrative buildings. The method is based on calculation of the coefficient of thermal comfort of a person in the room. Further amendments are introduced to the asymmetry of the thermal radiation, radiation cooling and air quality. The method serves as the basis for a computer program.In modern Russia the realization of energy-saving measures for increasing the effectiveness in the use of fuel-energy resources is urgent task. For the estimation of effectiveness energy-saving measures different methods are used: conducting full-scale experiments and tests, the mathematical simulation of building as unified power system and the determination of energy consumption during the characteristic periods of the time, the analysis of the results of applying the analogous energy-saving measures in the systems of the power supply of buildings, the use of data of producers about the effectiveness of energy-saving measures and also the express-methods. The use as the criteria of effectiveness only of economic indices (Payback Period (PP), Net Present Value (NPV), Internal Rate of Return (IRR) a.o.) is a large drawback in the utilized methods of the estimation of effectiveness energysaving measures. However, the practice of the introduction of energy-saving measures shows that frequently the imposing of thermal isolation and sealing the buildings, which are the most popular measures for the savings of thermal energy, lead to reduction in the comfort of microclimate in the accommodations. This leads to reduction in the fitness for work and worsening in the health of people, which are located in the building. Therefore arose the need of developing the new method of the estimation of the effectiveness of energy-saving of measures, considering both the economic indices measures and the level of the comfort of the microclimate before and after of the realization of energy-saving measures.In the article [1] it is shown that the utilized methods of evaluating the comfort of microclimate have deficiencies: majority of them can be used only for the accommodations of production buildings, the range of the parameters is limited. For the habitable, public and office building in Ivanovo State Power University named after V.I. Lenin was developed the more universal method of determining of comfort of microclimate in accommodations of buildings.The calculation of the coefficient, which characterizes the state of the thermal comfort of man in the accommodation is the basis of the method of evaluating the comfort of microclimate in the aca Corresponding author: warda_mp@mail.ru

Abstract. The article presents the details of modeling of heat exchange and mass transfer in a room in the formation of a microclimate. The mathematical model is implemented in the program ANSYS Fluent and is used to predict the climate parameters after the implementation of energy saving measures in the building. Verification of the mathematical model by comparing the experimental data with the results of the measurement of microclimate parameters of the experiment.

Abstract. In the article the mathematical model of the processes of heat exchange and mass exchange in the room of building with the natural ventilation is shown. The verification of mathematical model is performed via the comparison of the results of calculation in ANSYS Fluent with the data of experiment. Experiment was conducted in the room of educational institution. In the experiment were measured the temperature of air, air speed and moisture content in air. A low relative error in the calculation with the use of a mathematical model makes its use for predicting the parameters of microclimate after the introduction of the energy-saving measures possible The mathematical model of the processes of heat exchange and mass exchange in the roomThe prediction of the parameters of microclimate in the rooms of habitable, public and office buildings is urgent task. Solution of this problem will make it possible to estimate influence on the microclimate of the rooms of factors, connected with the energy-saving measures [1].For the solution of this problem in Ivanovo State Power University was used the method of mathematical simulation. The thermal, humid and air regime of room was described by such parameters as the temperature of air (Т в , 0 С), air speed (w, m/s), moisture content (d, kg/kg d.a. ) and the concentration of carbon dioxide (СО 2 , ppm). For calculating these parameters the system of differential equations, which contains the equation of the conservation of energy, pulse and quantity of substance, and also the integral-differential equation of the transfer of the radiant energy, was solved [2][3][4].The standard k-ε model of turbulence was used for calculating the turbulent properties of air in the room [5]. The realization of the mathematical model of the processes of heatmass transfer is executed in ANSYS Fluent [6]. The solution of the equations of the transfer in ANSYS Fluent is based on the method of final volumes.

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