Исследование солнечных энергоустановок с полутороидальными концентраторами

This paper considers the construction, electrical and optical characteristics of solar power installations with semitoroidal concentrators of solar radiation. The authors concentrate on hybrid solar modules designed for generating electricity and heat power. The considered devices operate by concentrating sunlight reflected from the surfaces of semitoroidal concentrators positioned opposite to each other. This type of concentrators allows to increase the density of solar radiation reaching the receiver surface. The main indicators of the efficient use of solar power installations with semitoroidal concentrators are the coefficient of geometrical concentration k, optical efficiency and solar energy transformation efficiency of the receiver. The paper presents the figures and the methodology for determining the geometric concentration ratio for each type of solar semitoroidal concentrators. It has been found that the application of solar energy semitorroidal concentrators increases the solar energy concentration factor by 2... 180 times as compared with solar plants without solar energy concentrators. The best cost-efficiency option of a solar installation with semetorroidal concentrators can be power plants with a concentration factor of 5... 8.