To the Calculation of the Influence of Solar Radiation on the Heat Losses of Premises Through Glazed Balconies and Loggias

When glazing balconies and loggias, a closed air space is formed, the temperature of which, as a rule, is higher than the temperature of the external environment. An increase in temperature on a glazed balcony helps to reduce heat losses from the room adjacent to it. The article presents a method for calculating the average temperature on a glazed balcony, taking into account the conditional temperature of solar radiation formed during the heating period. The proposed method is based on the calculation of the thermal stability of the premises. The calculation of the average temperature for the heating period for glazed balconies of four main types for the climatic conditions of Kazan is given. It is shown that the conditional temperature of solar irradiation ranges from 2.99 to 3.78^оC for rooms of southern orientation and depends on the area of light-transmitting external enclosing structures and thermal performance of the surfaces of the room. It is shown that taking into account solar radiation as a factor in increasing the temperature on a glazed balcony or loggia can reduce the heat loss of a room that borders this balcony by up to 20%, depending on the configuration and thermal characteristics of the structures. The greatest effect of reducing the heat loss of the room is observed when glazing balconies, which have the largest area of light-transmitting structure fillings.

A.I. IVANTSOV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Kazan State University of Architecture and Engineering (1, Zelenaya Street, Kazan, 420043, Russian Federation)

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