Modeling and experimental validation of a humidification–.pdf

Energy 36 (2011) 3159e3169 Contents lists available at ScienceDirect Energy journal homepage: www.els /locate/energy Modeling and experimental validation of a humidificationedehumidification desalination unit solar part K. Zhani a, H. Ben Bacha a, b, *, T. Damak c a Laboratoire des Systèmes Electro-Mècaniques (LASEM), National Engineering School of Sfax, Sfax University, Tunisia b College of Engineering in Alkharj, Alkharj University, P.O.Box 655, BP 655-11946 Alkahrj, Saudi Arabia c Unité de commande des Procédés Industriels, National Engineering School of Sfax, Sfax University, Tunisia a r t i c l e i n f o a b s t r a c t Article history: This paper presents the modeling and the experimental validation of air and water solar collectors used Received 21 September 2010 in humidificationedehumidification (HDH) solar desalination unit. The solar desalination process is Received in revised form currently operating under the climatological conditions of Sfax (34 N, 10 E), Tunisia. To numerically 29 January 2011 simulate the air and water solar collectors, we have developed dynamic mathematical models of the Accepted 2 March 2011 solar collectors. The resulting distributed parametric systems of equations are transformed into a system Available online 3 April 2011 of ordinary differential equations (ODEs) using the orthogonal collocation method (OCM). A comparison