STUDY OF ENTROPY GENERATION IN A SLAB WITH NON-UNIFORM INTERNAL HEAT GENERATION

Analysis of entropy generation in a rectangular slab with a non-uniform internal heat generation is presented. Dimensionless local and total entropy generation during steady-state heat conduction through the slab are obtained. Two different boundary conditions have been considered in the analysis, the first with asymmet-ric convection and the second with constant slab surface temperature. Temperature distribution within the slab is obtained analytically. The study investigates the ef-fect of some relevant dimensionless heat transfer parameters on entropy genera-tion. The results show that there exists a minimum local entropy generation but there does not exist a minimum total entropy generation for certain combinations of the heat transfer parameters. The results of calculations are presented graphically. Key words: slab, internal heat generation, entropy generation, convectio