Solar chimney power plant with integrated waste heat source on the ground: a numerical and statistical research with experimental validation

Pinar Mert Cuce, Erdem Cuce, Siddig Omer and Saffa Riffat

International Journal of Low-Carbon Technologies, 2025, vol. 20, 1272-1282

Abstract: Solar chimney power plants (SCPPs) offer a sustainable alternative to conventional energy. This study investigates the impact of integrating a waste heat source (WHS) into the SCPP ground using a 3D computational fluid dynamics model based on the Manzanares pilot plant, developed in ANSYS. A 90° sector model with the discrete ordinate solar ray tracing and RNG k-ε turbulence model is applied. At 1000 W/m2 solar radiation and 293 K, WHS integration increases power output (PO) from 54.141 to 129.278 kW at 250°C. Even without solar radiation, 101.524 kW PO is achieved at 200°C, highlighting WHS effectiveness in low-sun conditions.

Keywords: solar chimney power plant; heat source; ground heat; system performance (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:oup:ijlctc:v:20:y:2025:i::p:1272-1282.

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