EXPERIMENTAL STUDY THE EFFECT OF ABSORBING TUBE DIAMETER ON THE PERFORMANCE OF COMPOUND PARABOLIC CONCENTRATOR SOLAR COLLECTOR. Journal of Engineering and Sustainable Development, [S. l.], v. 22, n. 4, p. 247–255, 2018. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/455.. Acesso em: 28 apr. 2024.