Numerical investigation of the working mechanisms of solar chimney coupled with earth-to-air heat exchanger (SCEAHE)

Summary

A validated numerical model of a solar chimney that draws air through an earth-to-air heat exchanger is used to see how geometry and climate affect passive ventilation and cooling. Performance peaks with a 60 m buried pipe of 0.6 m diameter. Lengthening the collector helps more than raising the chimney, and stronger sunshine roughly doubles cooling capacity.

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