Hybrid Lighting System Research in the Context of Increasing Efficiency

Abstract

A comparative analysis of the lighting and heat engineering parameters of typical light opening and combined lighting hybrid systems based on hollow light guides was performed. Hybrid lighting systems advantages over the typical light opening are the following: the ratio of the areas of light opening for a given illumination is 1/52; the ratio of heat inflows is 1/158; the ratio of heat losses is 1/170. The payback period of investments in hybrid lighting systems compared with the construction of typical light opening one, for example the shopping center, is less than 3 years. Taking into account the savings on the purchase of climate technologies, the payback is achieved at the design stage. Investigation results of the optical scheme of a hybrid lighting system and technical solutions are reported in the article. These results are aimed to optimize design and to increase efficiency of light transmission over an extended hollow light guides. The LED-block optics selection of the hybrid lighting system, which ensures the transmission of the light flux over distances of more than 20m is substantiated. The best parameters are achieved with the light beam divergence angle of the LED module in the range of 30-60 degrees, which determines the LED module secondary optics of the production product line of the hybrid lighting complex Solar LED-S.