Thursday, August 24th, 2017

Entropy generation due to natural convection in discretely heated porous square cavities

Publication year: 2011brbSource:/b Energy, In Press, Corrected Proof, Available online 19 July 2011brRam Satish, Kaluri , Tanmay, BasakbrOptimization of industrial processes for higher energy efficiency may be effectively carried out based on the thermodynamic approach of entropy generation minimization (EGM). This approach provides the key insights on how the available energy (exergy) is being destroyed during the process and the ways to minimize its destruction. In this study, EGM approach is implemented for the analysis of optimal thermal mixing and temperature uniformity due to natural convection in square cavities filled with porous medium for the material processing applications. Effect of the permeability of the porous medium and the role of distributed heating in enhancing the thermal mixing,…br Highlights: ► Analysis on entropy generation is carried out for uniform and distributed heating systems. ► Natural convection for fluids within porous cavities are considered. ► Detailed analysis on flow, temperature and entropy generation characteristics has been done. ► Optimal thermal mixing vs entropy generation is compared for all types of distributed heating systems.► Effects of Darcy number and Prandtl numbers are also investigated.

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