Performance Analysis of Solar Chimneys of Different Physical Scales Using CFD

Summary

Axisymmetric Ansys Fluent simulations of solar chimney power plants with varied tower heights and collector radii show that available power scales with tower height multiplied by collector area, even for unusual geometric ratios. Among three turbulence models, the Reynolds stress model proved most accurate, and temperatures measured on an instrumented laboratory model agreed well with the computations.

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