METHOD AND DEVICE FOR COLLECTING RADIANT ENERGY

摘要

The invention relates to a method and device for collecting radiant energy (4) that penetrates into a channel or another restricted space having a totally or partly transparent side wall or side walls, through which channel or closed space a heat transporting medium (6) flows. It is characterizing of the invention that the radiant energy (4) is absorbed by surfaces, such as dark filling objects being in direct contact with the heat transporting medium (6) and transferring the energy thus received directly to the heat transporting medium (6).