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.