This paper presents the simulation and the experimental validation of the distillation module of a desalination unit, currently operating in Sfax, Tunisia. The desalination process is based on the Solar Multiple Condensation Evaporation Cycle (SMCEC) principle.

There is a considerable amount of experimental evidence that unequivocally shows that there are fluids whose viscosity depends on both the mean normal stress (pressure) and the shear rate. Recently, global existence of solutions for the flow of such fluids for the three-dimensional case was...

Mechanical vibrations become a serious concern in drive applications when they adversely affect the dynamic performances of these applications and may end with physical deterioration of their structures. In many process applications, such perturbations must be detected and assessed in order to...

In this paper a theoretical model of the heat-transfer processes in a solid adsorbent packed bed is established. Based on discretized energy control equations of the fluid in the heat-transfer coil and transient heat conduction equations of the adsorbent in the bed with unsteady boundary...

A one-dimensional (1D) system obeying the Hubble expansion is studied numerically using an N-body code. The rescaling of both space and time changes the dynamics which, in the rescaled frame, is analogous to the dynamics of a 1D one-component plasma with the addition of a friction term. We start...

The kinetics of the deposition of polymeric microspheres (diameter 3.31–8.74μm, density 1.5gcm−3; diameter 4μm, density 1.055gcm−3), as well as of polymorphonuclear leukocytes (diameter 7μm, density 1.11gcm−3) on smooth, horizontal silica slides was measured using a vertical...

Hurst's exponent H is obtained for historical precipitation data in northeast Brazil. The influence of periodic natural forces in the data is reflected by the presence of breaks and steps in the plots of the R/S signal vs. the time lag τ. The reliability of the results for actual data is tested...