The effect of using ribbed absorber plates on enhancing the heat transfer of solar chimneys

Summary

Numerical simulations in ANSYS Fluent and experiments under Iraqi climate conditions were used to compare flat, triangular V-grooved and trapezoidal corrugated absorbers in a vertical solar chimney ventilating a small test room, varying gap width and tilt. A V-grooved plate with a 0.2 m gap at 10° tilt gave the best air change rate, about 10% above the flat plate.

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