The primary objective of the paper is to examine the nature of irreversibilities in the form of entropy generation for a micropolar fluid flow through a porous pipe which is inclined at an angle a. The governing nonlinear partial differential equations are changed to a system of ordinary differential equations by implementing the suitable transformations. These equations are linearised using quasilinearisation method and the resulting system of linear equations is solved by Chebyshev spectral collocation method. The numerical results for the velocity, microrotation, temperature profiles are computed and presented graphically. In addition, these profiles are used to evaluate the entropy generation and Bejan number.

porous pipe, micropolar fluid, entropy generation, Bejan number