M. Magherbi^1,*, H. Abbassi², N. Hidouri³, A. Ben Brahim⁴

¹ High Institute of Applied Sciences and Technology, Civil Engineering Department,
Avenue Omar Ibn El Khattab, 6029 Gabes, Tunisia.
Tel. : 21675392100, Fax : 21675392190
E-mail: [email protected]
² Sfax Faculty of Sciences, Department of Physics,
P.B. 802, 3018 Sfax, Tunisia.
Fax: 2164274437
E-mail: [email protected]
³ Engineers National School of Gabes, Chemical and Processes Engineering Department,
Avenue Omar Ibn El Khattab, 6029 Gabes, Tunisia.
Tel. : 21675392100, Fax : 21675392190
E-mail: [email protected]
⁴ Engineers National School of Gabes, Chemical and Processes Engineering Department,
Avenue Omar Ibn El Khattab, 6029 Gabes, Tunisia.
Tel. : 21675392100, Fax : 21675392190
E-mail: [email protected]
^*Corresponding author.

Received: 12 January 2004 / Accepted: 25 January 2006 / Published: 2 February 2006

Abstract: This paper reports the numerical determination of the entropy generation due to heat transfer, mass transfer and fluid friction in steady state for laminar double diffusive convection, in an inclined enclosure with heat and mass diffusive walls, by solving numerically the mass, momentum, species conservation and energy balance equations, using a Control Volume Finite-Element Method. The influences of the inclination angle, the thermal Grashof number and the buoyancy ratio on total entropy generation were investigated. The irreversibilities localization due to heat transfer, mass transfer and fluid friction is discussed for three inclination angles at a fixed thermal Grashof number.

Keywords: heat transfer; mass transfer; cavity; entropy generation.