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  • Functional versatility of adjustable horizontal louvre sunshades

    The article considers internal adjustable sun-protecting jalousies from their different functional efficiency pant of view. It is noted, that besides their main sun-protective function, adjustable jalousies possess some other functions, depending on the position of their horizontal planks. These functions can be successfully used for microclimatic internal environment creation of comfortable. These are natural lighting function, psychological contract with surrounding environment function and function of visual isolation, i.e. “privacy”. and so on. All the above functions usually have maximum efficiency of their qualities in the case of their individual consideration. This, as a rule, is not practically reasonable. That is why this work is aimed on optimum combination of the man functional characteristics of horizontal sun-protecting jalousies under necessity of their mutual consideration, i.e. in achievement of their functional universality.

    Keywords: sun-protecting devices, horizontal jalousies, functional characteristics, comfort of internal environment, optimization, insolation, visual comfort, functional universality, natural lighting

  • Comparative analysis of the effectiveness of various types of overhead natural lighting systems in public and industrial buildings

    The article deals with the comparative analysis of traditional and new types of lighting systems in multistory public and industrial buildings. The analysis is being conducted with use of some specific objective and subjected criteria. These include a number of design characteristics of the systems in question – from an overall cost of the installation to the psychological contact with the outdoor environment. It is noted, that the main characteristic of a human activity is productivity and this depends upon the working conductions, which are evaluated on the basis of subjective appraisal. The best solution of the system of natural lighting, according to the number of criteria considered, which matches the above requirements is the system of lighting wells, combined with the windows.

    Keywords: the system of roof natural lighting, objective and subjective appraisal, comfort of indoor environment, evaluation criteria, public and industrial buildings