Influence study of different types of grounds on the solar chimney power plant performance

Summary

Experimental measurements and a numerical model are used to compare how ground materials under the collector (pebbles, sand, a sand–pebble mix and concrete) affect the output, efficiency and cost of a solar chimney power plant. Pebbles performed best, reaching about 45% efficiency, while sand was weakest; concrete was the costliest option, and model and measurements agreed closely.

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