title: Experimental studies for the receiving surfaces of solar flat collectors
abstract: This paper presents the results of the studies of the energy characteristics of a solar collector with a selective receiving surface. When using special technologies for applying high-quality selective coatings to absorbers of solar collectors, it is possible to significantly increase the conversion coefficient of the incident solar radiation flux. The paper presents the results of studies of flat solar collectors serving to heat the coolant used mainly for the needs of hot water supply for indi