INVESTIGATION OF LIGHT GUIDES FOR TRANSFER OF SOLAR RADIATION 
FROM THE FOCAL VOLUME OF A SUNLIGHT COLLECTOR 
TO A TECHNOLOGICAL ZONE

V. V. Pasichnyi and G. F. Gornostaev

UDC 536.3:681.586.5

The efficiency of light guides manufactured at 
the State Optical Institute on exposure of the inlet end to concentrated 
solar radiation under the conditions of an SGU-2 plant with a 1.5 m collector 
has been investigated. It has been established that all 2 mm light 
guides had a stability to concentrated solar radiation of the order 
of 600 W/cm2 the damage threshold of 8 mm multistrand light guides 
was about 450 W/cm2 . It has been shown that TK1, TK3 and TK23 
heavy crowns are the most stable to the action of 1500-1800 W/cm2 fluxes. 
The possibility of restoring the transmission of light guides exposed 
to ionizing radiations through the use of concentrated solar radiation 
has been confirmed.

I. N. Frantsevich Institute of Problems of Materials 
Science, National Academy of Sciences of Ukraine, 3 Krzhizhanovskii 
Str., Kiev, 03142, Ukraine; email: pasich@ipms.kiev.ua. Translated 
from Inzhenerno-Fizicheskii Zhurnal, Vol. 77, No. 3, pp. 60-63, 
May-June, 2004. Original article submitted March 26, 2003.