A COMPREHENSIVE COMPARISON CRITERION OF NATURAL LIGHTING SYSTEMS FOR BUILDINGS

Natural lighting systems make a significant contribution to the energy balance of the building. Changing its geometric and optical characteristics affects the illumination in the room and determines the operating costs associated with maintenance, heat and heat losses through translucent fences. The problem of comparison several systems of natural lighting of buildings is considered. For comparison, a complex criterion is proposed that takes into account optical, thermal, operational properties, as well as capital costs. The proposed criterion allows to remove irrelevant indicators for a particular building or add new ones according to customer requirements. The calculated dependences to determine the numerical values of the individual coefficients included in the complex criterion are given. The calculated dependences to determine the numerical values of the individual coefficients included in the complex criterion are presented. The algorithm and the method of application the proposed complex criterion for comparison of natural light systems are developed.