Natural lighting in the premises of public institutions situated at the ground floors of buildings

摘要

The article deals with the typical problems of natural lighting in the public premises of different types situated at the ground floors of buildings, in which shops, social institutions, banks and post offices, etc. can be located. The problems of natural lighting of such premises are associated with the use of windows as a screen for various types of information - from advertising billboards to the display of goods, etc. In this case, the efficient area of windows is reduced dramatically. This leads to a decrease in the values of the coefficient of daylight and, consequently, to an increase in the cost of electricity aimed at constant additional interior lighting. The authors suggest an optimum method of balancing the informative and lighting performance of window openings in the premises in question. The results of field studies and decisions about the internal illumination are given to confirm the minimum acceptable window size required to maintain both satisfactory interior lighting and minimum power consumption.