NUMERICAL AND EXPERIMENTAL INVESTIGATION OF SEMICIRCULAR SOLAR UPDRAFT TOWER SYSTEM EMPLOYING POROUS COPPER METAL FOAM . J. eng. sustain. dev. [Internet]. 2023 Sep. 1 [cited 2024 May 18];27(5):596-614. Available from: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1581