Two models of solar air collectors are thermally compared with 4 different configurations each one for altitude conditions above 3000 m above sea level: Single-pass solar air collector with flow below the absorbent plate (SACSP), double-pass air collector (SACDP) making 8 variations in total. Thermal models of the solar air collectors are presented and were solved using EES software. The results of the theoretical models show that the SACDP with a single cover and with selective coating has a higher outlet air temperature and higher thermal performance. A SACDP configuration was validated experimentally, and the results showed a strong correlation with the thermal model.

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Mathematical Comparison of a Single and Double Pass Solar Air Collector in Different Configurations for Application in Domestic Heating

  • Otto Barnett,
  • Sandra Vergara

摘要

Two models of solar air collectors are thermally compared with 4 different configurations each one for altitude conditions above 3000 m above sea level: Single-pass solar air collector with flow below the absorbent plate (SACSP), double-pass air collector (SACDP) making 8 variations in total. Thermal models of the solar air collectors are presented and were solved using EES software. The results of the theoretical models show that the SACDP with a single cover and with selective coating has a higher outlet air temperature and higher thermal performance. A SACDP configuration was validated experimentally, and the results showed a strong correlation with the thermal model.