LOW MASS FLOW RATE IN FLAT-PLATE LIQUID HEATING SOLAR COLLECTORS

Heat transfer problems in flat-plate liquid heating solar collector have been analysed. Some improved collector efficiency criteria have been used. Low mass flow rate (LMFR) of working fluid has been shown as an advantageous operating range for solar collector. The serpentine-flow absorber of the particular type has been proposed as an improved construction for LMFR-collector.