Efficiency of solar plate air heaters

摘要

The efficiency of a solar air heating collector (SHC) has been investigated using a very simple nonstationary plate heating model. It is shown that the time to reach to the operating efficiency in the SHC is quite long. It is found that in the air heating temperature range 40-60 ° C the stationary efficiencies of the SHC can be from 0.5 to 0.37. [PUBLICATION ABSTRACT]