Preliminary studies of the water solar collector

Abstract

Promotion of renewable energy sources and their ecological advantages in comparison to fossil fuels together with continual technological development results in the expansion of the solar collectors market even in countries where solar radiation is unfavorable for solar systems. In this paper, the analysis of the employment of plate and tube collectors in a residential buildings located in Poland was conducted. The paper shows the results of preliminary studies of a water solar collector system installed in Bialystok University of Technology, Poland. The efficiency of the system in the winter season was analyzed, based on data garthered in December 2019. Results showed that a water solar installation in the north-Europe countries, such as Poland, need additional energy supply during cold months for anti-frozen protection. The daily average of additional energy consumption can be twice higher than solar contribution for extreme conditions as studied in this paper.