...Nadia Allouache; Salah Chikh A combination of the first and second laws of thermodynamics has been utilized in analyzing the performance of a double pipe heat exchanger with a porous medium attached over the inner pipe. The goal of this work is to find the best conditions that allow the lowest rate...

... in the industrial carbonyl process ( 15 ) (Fig. 1 ) is numerically investigated. The preheater is essentially a tube-and-shell heat exchanger, with the moving packed bed of nickel pellets in a stagnant carbon monoxide atmosphere composing the “tube” side, while hot flue gases make up the “shell” side. After...