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ARTICLE

Optimization of a Solar Chimney with a Horizontal Absorber for Building Ventilation: A Case Study

by El Hadji I Cisse^1,*, Baye Alioune Ndiogou^1,2, Soumaïla Tigampo¹, Ababacar Thiam^1,3, Dorothé Azilinon¹

1 (L3EPI) Laboratory of ESP-UCAD, Dakar, Senegal
2 Center for Energy Research and Sustainability, DAUST, Dakar, Senegal
3 Universiy Alioune Diop of Bambey, Bambey, Senegal

* Corresponding Author: El Hadji I Cisse. Email:

(This article belongs to the Special Issue: Materials and Energy an Updated Image for 2021)

Fluid Dynamics & Materials Processing 2023, 19(4), 901-910. https://doi.org/10.32604/fdmp.2022.021973

Received 15 February 2022; Accepted 01 July 2022; Issue published 02 November 2022

Abstract

A study is conducted to optimize the geometry of a solar chimney equipped with a horizontal absorber in order to improve its performances in relation to the provision of ventilation. The problem is tackled through numerical solution of the governing equations for mass, momentum and energy in their complete three-dimensional and unsteady formulation. The numerical framework also includes a turbulence model (k-ε) and a radiant heat transfer (DO) model. Moreover, a Multi-Objective Genetic Algorithm (MOGA) is employed to derive the optimal configuration of the considered solar chimney. It is shown that an air velocity of 0.2 m/s can be obtained. This value is the minimum allowed air velocity according to the ASHRAE’s (American Society of Heating, Refrigerating and Air-Conditioning Engineers) adaptive comfort approach.

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Keywords

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