Alwan Saleh F, Kadhim Hussein A. Numerical Investigation of Heat and Mass Transfer through the Preheater System in CementManufacturing Plant. J. eng. sustain. dev. 2006;10(4):78-100. Accessed April 20, 2025. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1774